德国瓦克膏状有机硅憎水防水剂CREME C

Product description

SILRES® BS CREME C is an aqueous, solventless,

creamy, silane-based water repellent. It is a highquality

specialty product for hydrophobic impregnating of both

normal and reinforced concrete.

Special features

SILRES® BS CREME C is characterised by:

- excellent penetration

- solventless, aqueous and environmentally

compatible

- low volatility

- high resistance to alkalis

- thixotropic and may so be applied without loss

of material

Treated concrete will have the following permanent

properties:

- greatly delays chloride and water absorption

by concrete

- no loss in breathability

- improved durability against

freeze-thaw de-icing salt stress

- enhanced durability

- provides good adhesion for paints

SILRES® BS CREME C is a unique impregnating

agent because it is thixotropic. It has an outstanding

ability to impregnate high-quality concrete and

reinforced concrete. Unlike conventional liquid

products, SILRES® BS CREME C can be applied in

just one coat of the desired thickness (at the very

most, two coats). The silane active ingredient

penetrates the substrate within 30 minutes to several

hours, the exact time depending on the porosity and

thus quality of the concrete. On reaction with the

substrate, it releases ethanol and is converted into a

polymeric silicone resin. A creamy layer forms initially,

but this then disappears completely. As the active

ingredient is the same as in conventional liquid

impregnating agents, impregnation with SILRES® BS

CREME C does not clog the pores or capillaries, nor

does it affect its ability to "breathe".

SILRES® BS CREME C is designed to penetrate

deeply into concrete so as to afford optimum protection

against absorption of water and pollutants as well as

freeze / thaw cycles. This effect should not be

confused with the "beading" effect imparted by

impregnating agents that is often referred to as water

repellency. Beading is only a surface effect, and it

plays a secondary role in protecting the substrate.

Concrete treated with SILRES® BS CREME C has

initially only a moderate beading effect, but this

increases after the surface has been wetted.

Application

SILRES® BS CREME C is recommended particularly

for impregnating and priming concrete and reinforced

concrete used in building bridges, roads and buildings.

In principle, SILRES® BS CREME C may be used on

any alkaline substrate that has been treated previously

with concentrated or undiluted impregnating agents,

such as alkoxysilanes.

Processing

The work performed (preparing the concrete surface,

setting up a reference surface, application and quality

control) must follow the applicable regulations (in

Germany these are the DAfStb repair work guidelines

and the ZTV-ING).

- Concrete should not be impregnated until at least

four weeks after it has been produced so that the

setting of the cement is not affected.

- New surfaces that are still unsoiled must be cleansed

of coarse particles and dust deposits by sweeping or, if

necessary, using compressed air. Surfaces already

weathered, and those heavily soiled by oil, rubber

residue, etc., must first be cleaned using superheated

steam or high-pressure water before commencing

treatment. It is imperative that the water used be

siphoned off immediately to prevent saturation of the

concrete.

- Impregnation should always be performed on

superficially dry concrete, i.e., when the surface of the

concrete appears evenly dry, no more damp patches

are visible and the moisture content equilibrium is

established. To this end, moisture in the surface zone

of the concrete is measured using a suitable technique

(CM method or other methods allowed under ZTVING). The surface-zone moisture content of the

concrete (from the surface to a depth of 20 mm) should

not exceed 4 wt%.

SILRES® BS CREME C

MASONRY WATER REPELLENTSTechnical data sheet for SILRES® BS CREME C / Version: 1.10 / Date of last alteration: 21.03.2017 2 / 3 - SILRES® BS CREME C is best applied to the

concrete by the airless technique, undiluted and in the

desired thickness. Brushes, lambskin rollers or

spatulas may be used for smaller areas.

Up to 400g/m2 may be applied in one operation to

vertical surfaces and roofs, without loss off material.

The exact amount depends on the absorbency of the

substrate. At higher application rates, the impregnating

agent might liquefy at the top of the concrete and it

might start to run off. A second coat of SILRES® BS

CREME C may be applied at any time, but is usually

unnecessary.

- In the event of unexpected rain, cover surfaces

already impregnated and halt all further impregnation.

SILRES® BS CREME C should not get into direct

contact with bitumen. The resistance of insulant

against SILRES® BS CREME C has to be determined

dependend on temperature.

Storage

The 'Best use before end' date of each batch is shown

on the product label.

Storage beyond the date specified on the label does

not necessarily mean that the product is no longer

usable. In this case however, the properties required

for the intended use must be checked for quality

assurance reasons.

Additional information

Expert opinions:

The effectiveness of SILRES® BS CREME C is

confirmed and documented in the following laboratory

reports:

• Polymer Institut Dr. Stenner GmbH, Flörsheim,

Germany

Test report P 4254-2.1, 09.08.2007; EN 1504-2

Test report P 5024-2.1, 09.08.2007; EN 1504-2

• Institut für Bauforschung der RWTH Aachen,

Germany

Test report No. A 3299, 30.04.1998; TL/TP OS

(version 1996) of ZTV-SIB 90“

• CBI Betonginstitutet AB, Boras, Sweden

Test report No. 2297577, 03.07.1998; BRO 94

Test report No. P701959 A, 07.12.2007; BRO 2004

Test report No. PX10706 A, 19.03.2012; TRVAMA

Anläggning 10

Test report No. 6P00354 A, NT BUILD 515

• VTT Technical Research Center of Finland, Helsinki,

Finland

Test report VTT-R-42523-11, Apr. 6, 2011; SILKO

2010

• TRL Ltd., Berkshire, UK

Report PR/CSS/34/03, Aug. 2003; BD43/03

Report PPR 362, Oct. 2009; BD 43/03

• CTL, Ltd, Skokie, Illinois, USA

Project No. 105849; 15.18.2000; AASHTO T259/T260

Project No. 105849; 20.10.1999; NCHRP 244

• AGRA Earth Ltd. Alberta, Canada

Project No. EA 14913; 21.06.2000; BT-001

Safety notes

Comprehensive instructions are given in the

corresponding Material Safety Data Sheets. They are

available on request from WACKER subsidiaries or

may be printed via WACKER web site

http://www.wacker.com.

.

Product data

Typical general characteristics Inspection Method Value

Appearance white or yellowish creme

Active substance approx. 80 wt. %

Density approx. 0,9 g/cm3

Flash point ISO 3679 64 °C

企业名片