WACKER® CS - CONSTRUCTION SEAL transp. is a one-part, neutral low modulus silicone sealant with outstanding adhesion for construction  and exterior  weather sealing applications.

WACKER® CS-CONSTRUCTION  SEAL transp. cures at room temperature in the presence of atmospheric moisture to give a permanent flexible silicone rubber.


•  non-sag

•  ready gunnability at low (+5°C) and high (+40°C) temperatures

•  excellent tooling characteristics for professional use

•  flexible at low (-40 °C) and high temperatures(+150°C)

•  low shrinkage during vulcanization

•  excellent weatherability

•  rapid crosslinking: quickly becomes tack-free and crack resistant

•  non-corrosive to metals

•  suitable for alkaling substrates such as concrete, motor, fibrous cement



   •  Sealing of connection and expansion joints

•   Suitable for weather sealing of many construction materials(e.g. glass, aluminium, stell, stone, concrete , plastics)


Restrictions on use


WACKER® CS - CONSTRUCTION SEAL transp.may be discolored in contact with some organic elastomers, e.g., EPDM, APTK and neoprene.

WACKER® CS - CONSTRUCTION SEAL transp.is not recommended for use on natural stone, such as marble, granite, quartzite, as it can cause staining

WACKER® CS - CONSTRUCTION SEAL transp. must not be used for sealing of auqaria.

WACKER® CS - CONSTRUCTION SEAL transp.is not recommended for structural glazing bonding.

The curing time can be extended at lower temperature, lower humidity or by low volume of air exchange.




The substrate areas that will be in contact with the sealant must be clean, dry and free of all loose material, dust, dirt, rust, oil and other contaminants. Non-porous substrates should be cleaned with a solvent and a clean, lint-free, cotton cloth. Wipe dry immediately with another such cloth before the solvent evaporates from the surface.




WACKER® CS - CONSTRUCTION SEAL transp. exhibits excellent primerless adhesion to most non-porous siliceous material, e.g. glass, tiles, ceramics, enamel, glazed tiles and clinker; impregnated, varnished or painted wood; and some plastics.

Users must carry out their own tests due to the great variety of substances.

The adhesion can be improved in many cases by pretreatment of the substrates with a primer.

If adhesion difficulties arise please contact our technical service.


WACKER® CS-CONSTRUCTION  SEAL transp. is usually supplied in standard size cartridges that fit all standard caulking guns.


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.

Sales and support

Wacker Chemical Corporation
3301 Sutton Road
Adrian, MI 49221-9397
United States
+1  888  922-5374 (Phone)

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WACKER has a global network of specialist distributors at its disposal. Please select an application so that we can suggest suitable contacts.

Brenntag North America
1 Cragwood Road Suite 302
812021 South Plainfield
1  6109266100 (Phone)
1 6109163782  (Fax)
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