SILRES protección para concreto

8/13/2019 SILRES proteccin para concreto

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CONCRETE PROTECTION

FOR CONCRETE ADVANTAGES

CREATING TOMORROWS SOLUTIONS


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COST SAVINGS AND ENVIRONMENTAL

COMPATIBILITY THROUGH INNOVATIVE

TECHNOLOGY


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Silane and silicone expertise

from WACKER 12

SILRESBS Creme C 14

SILRESBS 1701 17

SILRESBS SMK 2101 18

SILRESBS 290 19

Preventive concrete protection 20

References 22

Benefits at a glance 25

WACKER services 26

WACKER at a glance 27

Building Materials for New Dimensions

Concrete is todays main building ma-

terial. Our age of globalization requires

a stable and fully-functional infrastruc-

ture that connects people and markets.

This infrastructure is based on concrete.Modern road and bridge construction

would be inconceivable without con-

crete, as would skyscrapers and indus-

trial buildings. Bigger, higher, wider

the global construction boom constant-

ly sets new challenges for materials and

technology, as the size and number of

buildings increase. Thats why concrete

will remain the No. 1 building material in

the future.

Concrete in Danger

Concrete is a versatile building materi-

al, used especially in civil engineering in

combination with steel. However, con-

crete and steel are vulnerable to harmful

substances that penetrate into the build-

ing material by means of moisture. This

can result in costly concrete damage due

to reinforcement corrosion.

Contents

Prevention rather than renovation 2

Concrete: building material of the future 4

Concrete damage 5

Concrete has two arch-enemies 6

Water-repellent treatment 7

Long lasting protection 8

Silanes stabilizer 9

Silanes reliable vehicle 10

Silanes pioneers in

water-repellent treatment 11

Repair Is the Most Expensive Solution

Repairing concrete structures is up to

ten times more expensive than preven-

tive measures such as hydrophobic im-pregnation. With WACKERs innovative

technology for the water-repellent treat-

ment of concrete, its possible to prevent

repair and so avoid high costs and

consumption of energy and resources.

Cost Benefits for Property Developers

Specialists from Karlsruhe University, Ger-

many, are convinced of the economic

benefits of preventive measures and rec-

ommend surface protection of concrete

structures. After all, the long-term cost

savings for property developers are huge!

Why is that? In fact the bulk of the costs

some 80% are caused not by the

actual repair work but by infrastructure

measures (e.g. traffic diversions) and

setting up the building site. In summary,

we can see that more prevention = fewer

repairs = lower overall costs.

Concrete Needs Protection

Only effective preventive measures such

as hydrophobic impregnation provide re-

liable protection for concrete structures.

To this end, WACKER has developed

environmentally compatible impregnat-ing agents and highly effective techniques

whose aim is to preserve the value of

old and new buildings and protect them

against weathering and structural dam-

age.

Impregnation Reduces Costs

by up to 90%

Its estimated that a water-repellent

treatment costs only 10% of extensive

renovations.

Benefits of Durable Concrete

Durability of

concrete

TECHNOLOGY ENVIRONMENTAL

ASPECTS

ECONOMIC

ASP ECTS

Taken from a presentation of the Karlsruhe

University of Applied Sciences, 2007.

Deep Impregnation

Economic Aspects

150,000

100,000

50,000

0

C

osts(Euro)

Conventional

repair

Deep

impregnation

Construction site set-up

Repair work

Economic damage


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CONCRETE WONT BE

OUTDATED ANYTIME SOON

Concrete and reinforced concrete are

building materials that have signifi-

cantly changed construction over re-

cent years. Their development provid-

ed architects, builders and engineers

with building materials that, in addi-

tion to offering excellent mechanical

and physical properties (such as com-

pressive and flexural strength), could

be shaped in new and unprecedent-

ed ways. It became possible to erect

imposing structures such as bridges,

towers and skyscrapers, as well as

more intricate structures. Its cost-ef-

fectiveness and durability also make

concrete a vital building material for

the future.

The Right Mix Is the Key

Concrete and reinforced concrete con-

sist mainly of cement binder, sand aggre-

gate and additives. In the case of rein-

forced concrete, the steel reinforcement

improves the concretes tensile strength.

Water is also required for hardening the

cement and attaining the desired pro-

cessing consistency. One way of deter-

mining concrete quality is by the water/

cement value, the ratio of mixing water

to cement. Excess water results in an in-

creased number of capillary pores in the

cement and thus a loss in rigidity. Cor-

rect processing and mixing of the ingre-

dients is necessary to ensure a build-

ing material with excellent weathering

and aging resistance. Otherwise, serious

damage impends after a relatively short

time.


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Despite concretes durability, serious

concrete damage that endangers a

buildings existence frequently occurs.

The main cause of concrete damage

is reinforcement steel corrosion due

to environmental influences.

Chlorides Spoil the Cost Balance

Fresh concrete is highly alkaline, which

passivates the reinforcement steel (Fig. 1).

The most extensive modes of damage,

which occur, e.g., when the reinforce-

ment steel corrodes, are caused by wa-

terborne salts, particularly chloride ions.

They are absorbed by the concrete,

typically in the form of road salt or sea-

water). This particularly affects highway

structures, but also buildings in coast-

al regions.

Corrosion Attacks Steel

Ultimately, the salt transported into the

concrete by water (Fig. 2) causes the

steels passivating layer (protective layer)

to dissolve. Under the influence of

oxygen and moisture, the steel begins

to rust (Fig. 3). Since the irons corrosion

process involves a drastic volume expan-

CONCRETE IS ROUGH AROUND THE

EDGES, WITH A SENSITIVE CORE

sion (bursting force; Fig. 4), the concrete

layer above the reinforcement spalls,

resulting in serious concrete damage

(Fig. 5).

Internal ErosionPitting corrosion is another type of cor-

rosion. Here, the rusting process doesnt

lead to expansion, but the steel dissolves.

This results in cavities forming in the

concrete, creating an invisible destabili-

zation.

The reinforcement steel passivates in an

alkaline medium.

Dissolved salts, such as chlorides and aci-

dic gases (e.g. CO2), penetrate into the

concrete and threaten the reinforcement.

The salts reach the steel and dissolve the

protective layer.

The corrosion process results in a volumeexpansion and pressure build-up in the

structure.

Crack formation and spalling of theconcrete are the result.

Fig. 1 Fig. 2 Fig. 3

Fig. 4 Fig. 5

The viewer sees the corrosion damageslike that.


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CONCRETE HAS TWO ARCH-ENEMIES:

WATER-SOLUBLE SALTS AND GASES

Its advantages, especially its cost ef-

ficiency, durability and scope for de-

sign, has made concrete todays most

widely-used building material. Just a

few years ago, many people still be-

lieved that concrete was resistant to

every kind of harmful influence. Mean-

while, however, frequent examples

of damage prove the opposite: since

concrete can be damaged, the exis-

tence of an increasing number of con-

crete buildings is endangered.

Freeze/Thaw Cycles, Road Salts and

Sea Salt Attack Concrete

Concrete damage always involves mois-

ture. Although water is important in mak-

ing concrete, it can also be destructive.

Furthermore, it carries aggressive sub-

stances such as chloride ions from road

salts into the concrete. Water is also a

reaction medium and partner for destruc-

tive chemical processes that particular-

ly attack the reinforcement steel by cor-

rosion.

Concrete Absorbs Water

When mineral building materials come

into contact with water, they absorb an

amount which depends on their porosity.

This causes various forms of damage:

Concrete destruction by

corrosion of the reinforcing steel

(chloride induced)

Chemical corrosion, e.g. binder

transformation by acidic gases

(SO2

, NO2

, CO2

)

Cracks by swelling and shrinkage

Frost damage and freeze/thaw

damage by road salts

Efflorescence and salt damage by

hydration and crystallization

Lime leaching

Rust stains

Dirt pick-up and stains

Fungal, moss, lichen and algal

growth

Structural Damage


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Defense against Water and Harmful

Substances

Creating a water-repellent zone at the

surface of the concrete considerably re-

duces the uptake of water and aggres-

sive substances. The masonry remains

drier, and is consequently less prone to

the kinds of damage mentioned. How-

ever, this is only true of capillary water up-

take, which is the water uptake by build-

ing materials when an exterior wall is

exposed to rain, for example.

Silanes Can Rescue Concrete

Structures

The most efficient way of protecting con-

crete is to prevent water uptake. The

past decades have shown that highly al-

kylated silanes (iso-octyl) are the ideal

product class for this. Their current dom-

inance in masonry protection stems from

their outstanding water-repellency and

durability. Silanes outperform rival prod-

uct classes in their resistance to physical,

chemical and microbiological attack.

Provided that the right product is chosen,

impregnation with silane will preserve a

structure for a long time.

WATER-REPELLENT TREATMENT

ENHANCES CONCRETES DURABILITY

Much of the damage caused by mois-

ture can be prevented, or at least re-

duced or kept at bay for longer, by

means of hydrophobic impregnation.


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Wacker Chemie AG has been work-

ing on developing and enhancing par-

ticularly long-lasting and cost-efficient

concrete protection agents for over

four decades. As hydrophobic impreg-

nating agents, these target known

sources of damage and fulfill the

tough demands made on protective

measures under difficult conditions.

The concretes pores remain open after

hydrophobic impregnation, so that wa-

ter-vapor and gas diffusion is not mea-

surably influenced. Thus, a concretes

natural properties are retained, and even

when the surface is damaged (crack for-

mation) there is sufficient protection.

These are clear advantages over film-

forming coatings, which easily flake off

as they dont allow water to pass out.

Moreover, a damaged protective film

quickly leads to concrete damage, as

water and aggressive substances can

then easily penetrate.

Modern Water Repellents Achieve:

Drastic reduction in water uptake

Chloride barrier and thus protection

against reinforcement corrosion

Retention of high water-vapor

permeability

Extensive penetration

High UV resistance

Surfaces not rendered shiny or tacky,

or caused to yellow

Adequate resistance to alkalis Safe use

Exemplary environmental compatibility

CONCRETE NEEDS EFFECTIVE

AND LONG-LASTING PROTECTION

Hydrophobic impregnation

the capillaries remain open.

Film-forming coating

the capillaries are sealed.

Hydrophobizing and Film-Forming

Measures

There are generally two methods avail-

able: hydrophobic impregnation and

film-forming coatings. In both cases,

protection against moisture is central

since water plays a key role by trans-

porting corrosive substances, e.g. road

salts, as well as facilitating the corrosion

mechanisms.

Fig. 6

Fig. 7

In contrast to film-forming coatings, hy-

drophobic impregnation does not affect

the physical properties (e.g. gas perme-

ability). As a result, impregnation has asignificantly longer service life.


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SILANES STABILIZER FOR

CONCRETE STRUCTURES

Silanes as Ideal Water-Repellent

Agents

Organosilicon compounds have a long

track record as water-repellent agents.

They feature excellent water repellency

without significantly impairing the water-

vapor permeability, and long durability,

which stems from silanes high resis-

tance to external influences such as UV

radiation, thermal stress, aggressive sub-

stances and microbes. This is due to ex-

tremely stable covalent bonds between

the silane and the silicate matrix of the

pores and capillary walls in the concrete.

Silanes for concrete impregnation must

possess two specific properties: they

must penetrate well into the relatively

dense concrete and resist degradation

by the high alkalinity found especially in

fresh concrete.

The purpose of water-repellent treat-

ment is to protect exposed exterior walls

from moisture and associated damage

by applying a colorless, non-film-form-

ing agent that prevents capillary uptake

of water and the aggressive substanc-

es dissolved in it. Because the capillaries

remain open, the substrate retains its va-

por permeability.

Experts Confirm Ecological Benefits

Wacker Chemie AG is in constant con-

tact with various research institutes,

which describe this long-term effective-

ness and significantly enhanced lifespan

in many scientific papers.

The silane docks onto the concrete to develop the water-repellent effect


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SILANES RELIABLE VEHICLES

OF WATER REPELLENCY

Fully-cured silanes close structural

resemblance to quartz is the reason

for its high affinity for silicate build-

ing materials, and for the exceptional

durability of the water-repellent treat-

ment.

Tried and Trusted

Organosilicon compounds have been

recognized as the ideal active agents for

the hydrophobic impregnation of absor-

bent mineral building materials for over

40 years now. The compounds work by

binding strongly to the building materi-

al to form extremely stable Si-O-Si struc-

tures, similar to silicone resin. We can

see the close similarity if we compare the

molecular structure of a fully reacted

silane (Fig. 9) with that of natural quartz

(Fig. 10). The fully reacted silane is simplya quartz modified with organic groups.

Silane molecule

Fig. 9 Fig. 10

Quartz molecule

This close structural resemblance is the

reason for the high affinity of silicone res-

ins for silicate building materials, and for

the exceptional durability of the water-

repellent treatment. The organic group

R makes the silane-treated construction

material outstandingly water repellent.

Since it is, moreover, extremely resistant

to many chemical, physical and biolog-

ical influences, the hydrophobic effect

lasts for decades.


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Today, alkylalkoxysilanes such as iso-

octyltriethoxysilane set the standard

in terms of highly efficient penetra-

tion and excellent resistance to high

alkalinity. They are colorless, low-mo-

lecular (and thus low-viscosity), high-

ly penetrating liquids that are gener-

ally applied to concrete in undiluted

form. There, they react with moisture,

liberating alcohol, and form extremely

stable bonds with the pores and cap-

illary walls of the concrete. After the

reaction, the iso-octyl group juts out

into the centre of the capillaries and

pores, which is the reason behind hy-

drophobic impregnations high effec-

tiveness.

Optimum Silane Efficiency

Todays scientific findings confirm si-

lanes excellent and long-lasting effec-

tiveness as concrete water repellents.

However, for optimum effect, two points

must be observed during processing:

Liquid water repellents must generally

be applied in several coats to achieve

the required active concentration and

penetration depth;

On vertical and particularly overhead

surfaces, the material could potential-

ly run off before it penetrates into the

concrete. In such cases, products with

higher viscosities such as SILRESBS

Creme C are ideal for attaining an ad-

equate contact time. More details on

page 14.

SILANES & SILOXANES PIONEERS IN

WATER-REPELLENT TREATMENT


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WACKER CHEMIE AG

THE SILANE AND SILICONE EXPERT

IN MASONRY PROTECTION

Wacker Chemie AG has been a leader

in masonry protection with silicones

for decades. Its broad series of ma-

sonry protection agents covers an

extensive range of applications, from

preservation of historic buildings to

concrete protection. Ongoing product

development ensures that products

are continually adapted to meet mar-

ket requirements.

Allow us to introduce our proven and re-

liable products for concrete protection,

with which you can protect your build-

ing against moisture and associated fur-

ther damage:

Expert SILRESBS Creme C

Universal SILRESBS 1701

Specialty SILRESBS SMK 2101

General-purpose SILRESBS 290

Products


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Expert SILRESBS Creme C

Certified to EN 1504-2

Water-repellent cream

Aqueous

Solvent-free

Silane-based

For concrete and reinforced concrete

Use undiluted

Universal SILRESBS 1701


Liquid water repellent

Monomeric silane

For concrete and reinforced concrete

Use undiluted

Specialty SILRESBS SMK 2101


Solvent-free silicone microemulsion

concentrate

Silane/siloxane-based

Impregnating agent for concrete

and reinforced concrete

Impregnating agent for in-plant-

manufactured building materials

Use diluted in water

General-purpose SILRESBS 290

Liquid general-purpose water repellent

Liquid general-purpose primer

Solvent-free silane/siloxane mixture

For mineral and alkaline substrates

Use diluted in solvent


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SILRESBS CREME C

THE EXPERT IN WATER-REPELLENT

TREATMENT OF CONCRETE

SILRESBS Creme C is an aqueous,

solvent-free, water-repellent cream

based on silane. Its a high-quality

specialty product for the hydrophobic

impregnation of concrete and rein-

forced concrete.

The Formula for Deep-Pore Protection

SILRESBS Creme C is characterized by:

A drastic reduction in chloride and

water uptake

Preserves the breathability of the

construction material

High protection during freeze/thaw

cycles

Optimum resistance to alkalis

Excellent penetration

Good paint adhesion

Being solvent-free, aqueous and

environmentally compatible

Low volatility

Being thixotropic, allowing zero-loss

application

Responsible Careis a global, voluntary

chemical-industry initiative. Its aim is to

make tangible contributions toward sus-

tainable development.

SILRESBS Creme Cs thixotropic con-

sistency is unique among water repel-

lents and its properties are excellent for

the impregnation of high-quality con-

crete and reinforced concrete. Unlike

conventional liquid products, SILRESBS Creme C can be applied to the re-

quired extent in just one or sometimes

two steps. Depending on porosity and

thus concrete quality, the silane active

ingredient penetrates into the substrate

within a short space of time (30 minutes

to a couple of hours) and there it reacts,

liberating alcohol with the silicate matrix

of the capillaries and pores of the con-

crete. The creamy layer that was initial-

ly white disappears completely. Since

the active ingredient is the same as in

conventional liquid water repellents, wa-

ter-repellent treatment with SILRESBS

Creme C also allows the pores and cap-

illaries of the substrate to remain open,

leaving the substrate breathable.

SILRESBS Creme C is designed so

that the active ingredient penetrates as

deeply into the concrete as possible

and thus optimally protects against the

absorption of water and aggressive

substances, as well as against damage

from freeze/thaw cycles.

WACKER products are certified products

Certified toEN 1504-2


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Freshly applied SILRESBS Creme C.

Capillary water absorption

Capillary water uptake of drill cores taken

from the Frstenland bridge in St. Gallen,

Switzerland, at varying depths (1-mm thick

slices are cut off and inspected). Source:

LPM report 17'160-2 of May 28, 1997

Applications

SILRESBS Creme C is particularly

recommended for the hydrophobic im-

pregnation and priming of concrete and

reinforced concrete in road, bridge and

building construction. In general, SILRESBS Creme C is suitable for all alkaline

substrates that were conventionally

treated with concentrated or undiluted

water repellents such as alkoxysilanes.

Comments

Comprehensive instructions are given

in the appropriate material safety data

sheets. These are available from our

sales subsidiaries or can be printed from

WACKERs website www.wacker.com.

Fig. 11

Two hours after application.

Fig. 13

30 minutes after application.

Fig. 12

Watera

bsorption(kg/m2)

Penetration:

1.2

1

0.8

0.6

0.4

0.2

0

0.5 1 1.5

untreated

0 mm

0 mm

2 mm

3 mm


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SILRESBS 1701

THE UNIVERSAL SILANE

SILRESBS 1701 is a mixture of

isomeric octyltriethoxysilanes with

iso-octyltriethoxysilane as the main

component. SILRESBS 1701 is used

in undiluted form for the hydrophobic

priming and impregnation of concreteand reinforced concrete.

Special Features

SILRESBS 1701 is characterized by:

A drastic reduction in chloride and

water uptake of concrete

Preserves the breathablity of the

construction material

High protection during freeze/thaw

cycles

Optimum resistance to alkalis

Excellent penetration

Good paint adhesion

Being solvent-free and

enviromentally compatible

Low volatility

After application to the concrete,

SILRESBS 1701 reacts with atmo-

spheric moisture or the building mate-

rials pore water, liberating alcohol. In

the zone where the impregnating agent

has penetrated, the active agent formedgreatly reduces the concretes absorp-

tion, but without blocking the concretes

pores and capillaries. The impregnated

building material retains very high water-

vapor permeability.

Applications

SILRESBS 1701 is recommended for

the hydrophobic impregnation and prim-

ing of concrete and reinforced concrete

in road, bridge and building construction.

Comments













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Applications

SILRESBS SMK 2101 is recommended

for the hydrophobic impregnation and

priming of concrete and reinforced

concrete in road, bridge and building

construction.

Comments






SPECIALTY

SILRESBS SMK 2101

SILRESBS SMK 2101 is a water-

dilutable, microemulsion-forming,

solvent-free silicone microemulsion

concentrate based on a silane/siloxane

mixture. Diluted in water, SILRESBS

SMK 2101 is a high-quality specialtyproduct for the hydrophobic impregna-

tion and priming of concrete and

reinforced concrete.

Special Features

SILRESBS SMK 2101 is character-

ized by:

A drastic reduction of the concrete's

water and chloride uptake

High resistance to alkalis

Proven penetration into the concrete

Low volatility with low evaporation

losses during application

Water dilutable with no solvent content


SILRESBS SMK 2101 reacts, liberating

alcohol. In the zone where the impreg-

nating agent has penetrated, the active

agent formed greatly reduces the con-

cretes absorption, but without block-

ing the concretes pores and capillaries.

The impregnated building material retains

very high water-vapor permeability.








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Applications

SILRESBS 290 is suitable for the

water-repellent treatment of absorbent,

porous mineral building materials such as:

Aerated concrete

Sand-lime brick Cement fiberboards

Mineral plasters

Mineral-based natural

and composite stone

Mineral paints

Brickwork

Comments






GENERAL-PURPOSE

SILRESBS 290

SILRESBS 290 is a solvent-free

silicone concentrate based on a

silane/siloxane mixture and can be

diluted with organic solvent. Diluted

in this way, SILRESBS 290 is a high-

quality general-purpose impregnat-ing and priming agent for mineral and

strongly alkaline substrates.

Special Features

SILRESBS 290 is characterized by:

A drastic reduction of chloride and

water uptake

High resistance to alkalis

Good penetration

Rapid drying without tackiness

Effectiveness even on damp building

materials


SILRESBS 290 reacts with the atmo-

spheric moisture or the building mate-

rials pore water, liberating alcohol. In

the zone where the impregnating agent

has penetrated, the active agent formed

greatly reduces the concretes absorp-

tion, but without blocking the concretes

pores and capillaries. The impregnated

building material retains very high water-

vapor permeability.






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Actives Type Use Drying ra te

coefficient

Absorption ratio Absorption rate

after exposure to

alkali

Freeze-thaw salt

stress test

Depth of

penetration

EN 13579 EN 13580 EN 13580 EN 13581 EN 14630

Class I >30% Class I 10% 98% Silane Ready to

use

Class I + + > 20 Class II

SILRESBS SMK 2101 100% Silane/

siloxane

Dilute to

25%

actives

Class I + + No effects ascertained Class I

Actives Type Use Drying rate

coefficient

Absorption ratio Absorption rate

after exposure to

alkali

Freeze-thaw salt

stress test

Depth of

penetration

SILRESBS 290 100% Silane/

siloxane

Dilute to

20%

actives

Class I + + Not tested Class I

PREVENTIVE CONCRETE PROTECTION

THE PERFECT PRODUCT FOR EVERY

APPLICATION

Hydrophobic Impregnation Agents Test Results DIN EN 1504-2

Chloride migration in concrete (strength

class C35/45). Untreated specimens and

those treated with SILRESBS Creme C.

Specimens conditioned for 10 days in 10%

NaCl solution.

Olympic Stadium, China

Hydrophobic Impregnation Agents Test Result

Chloride migration in concrete

Chlorideconcentration[%]

0.50

0.45

0.40

0.35

0.30

0.25

0.20

0.15

0.10

0.05

0

Untreated 200 g/m2100 g/m2 300 g/m2

Application rate of S ILRES BS Creme C

0 9 mmDepth 1.1 1.9 mm 2.1 2.9 mm 3.1 3.9 mm


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HYDROPHOBIC IMPREGNATION

OF CONCRETE OUR REFERENCES

Metroline, Dubai

Yangtze Bridge, China

Highway Bridge, Germany

Tsing-Ma Bridge, China


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Monument to the Battle of the Nations,Germany

Deutsches Museum, Germany Stonecutters Bridge, Hongkong

Three Gorges Dam, China


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SALT ENTERING FROST DAMAGES

STOPCORROSION

STOP

TOTAL COSTS$ ENERGY

CONSUMPTION

RESOURCES

NEEDED + SUSTAINABILITY

WATER STOP

STOP

CONCRETE PROTECTION

FOR CONCRETE ADVANTAGES

Outstanding Performance

SILRESBS protects concrete reliably

against water and moisture. Positive

effects:

Blocks waterand consequently

Blocks salt:

Forms a barrier to chlorides from road

salt.

Blocks corrosion:

Reinforcement steel does not rust,

since the passivation layer remains

intact.

Blocks frost damage:

Frost damage is minimized thanks to

highly effective water repellency.

WACKERs SILRESBS high-tech

product series offers property devel-

opers three definite benefits for

protecting concrete buildings and

retaining their value:

Clear advantage in terms of quality

due to unique technology

Impressive cost savings due to

unrivaled cost-effectiveness

Positive public acceptance due to

exemplary environmental compatibility

Range of Services and Benefits for Customers at a Glance

Metropolitan highway, China

Unique Advantages

Overall costs:

Prevention with SILRESBS instead

of costly repair

Energy consumption:

Treatment reduces energy consumption

by minimizing maintenance work and

the associated site set-up costs.

Resource conservation:

Lower water and energy consumption

is kind on the environment.

Sustainability:

Buildings treated with SILRESBS

have an extended lifespan.


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WE BELIEVE CUSTOMER PROXIMITY IS

THE KEY TO INNOVATIVE SOLUTIONS

Additional Information

This brochure has shown you what

SILRESBS can achieve as a waterre-

pellent additive for silicone resin emul-

sion paints and plasters. To find out

more about SILREStechnical data,

please ask for our product data sheets.

WACKER SILICONES can, of course,

offer much more for masonry protection

with silicones. For our complete product

range in this area, see our product

overview. We will be glad to send you

a copy upon request. Or just visit us

online at www.wacker.com/silres

Customized Service

Unique challenges require unique solu-

tions. Thats why our technical service

managers are here for you personally.

They understand your production and

requirements and know our products and

their wide range of benefits. With this

background, we can find exactly the

solution you need. Just call us. We will

be glad to help you, no matter where

you are.

WACKER SILICONES Services:

Technical service

Inspection and testing of coatings

with and without SILRESBS

Selection of the appropriate additive

and the right dosage


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WACKER

AT A GLANCE

CREATING TOMORROWS SOLUTIONS

SILTRONIC

is one of the worlds leading producers of

hyperpure silicon wafers, supplying many

major chip manufacturers. Siltronic devel-

ops and produces wafers up to 300 mm

in diameter at facilities in Europe, the USAand Asia. Silicon wafers form the basis of

state-of-the-art micro and nanoelectron-

ics used, for example, in computers, tele-

communications, motor vehicles, medical

technology, consumer electronics and

control systems.

WACKER SILICONES

is a leading supplier of complete silicone-

based solutions that comprise products,

services and conceptual approaches. As

a provider of solutions, the business divi-

sion helps customers press ahead with

innovations, exploit global markets fully,

and optimize business processes to

reduce overall costs and boost productiv-

ity. Silicones are the basis for products

offering highly diverse properties for vir-

tually unlimited fields of application, rang-

ing from the automotive, construction,

chemical, electrical engineering and elec-

tronics industries, through pulp and

paper, cosmetics, consumer care and

textiles, to mechanical engineering and

metal processing.

WACKER POLYMERS

is the global leader for high-quality bind-

ers and polymer additives. This business

divisions activities encompass construc-

tion chemicals and functional polymers

for lacquers, surface coatings and other

industrial applications, as well as basic

chemicals, i. e. acetyls. Products such

as dispersible polymer powders, disper-

sions, solid resins, powder binders and

surface coating resins from WACKERPOLYMERS are used in the construction,

automotive, paper and adhesives

industries, as well as by manufacturers

of printing inks and industrial coatings.

WACKER POLYSILICON

has been producing hyperpure silicon forthe semiconductor and photovoltaics

industries for over 50 years. As one of the

largest global manufacturers of polycrys-

talline silicon, WACKER POLYSILICON

supplies leading wafer and solar-cell

manufacturers.

WACKER FINE CHEMICALS

As an expert in organic synthesis, silanes

and biotechnology, WACKER FINE

CHEMICALS supplies innovative biotech

products and catalog chemicals for life-

science and consumer-care customers

worldwide. Its product portfolio includes

cyclodextrins and cysteine, organic

intermediates and acetyl acetone. A key

specialty is the contract manufacturing of

pharmaceutical proteins via microbial

systems.

WACKER

is a technology leader in the chemical

and semiconductor industries and

a worldwide innovation partner to

customers in many key global sectors.

With 15,900 employees, WACKERgenerated sales of 4.3 billion in

2008. Germany accounted for 22 % of

sales, Europe (excluding Germany)

for 23 %, North and South America

for 20 % and Asia-Pacific, including

the rest of the world, for 35 %.

Headquartered in Munich, Germany,

WACKER has 27 production sites

worldwide and a global network of

over 100 sales offices.

03.

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Wacker Chemie AG

Hanns-Seidel-Platz 4

81737 Mnchen, Germany

Tel. +49 89 6279-0Fax +49 89 6279-1770

[email protected]

6527e/08.09

SILRES protección para concreto

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