WACKER® DA - DURABLE ANTI FUNGI SILICONE
WACKER® DA is a one-part, neutral-curing, low-modulus silicone sealant with outstanding adhesion, long shelf life and excellent tooling characteristics for construction, perimeter sealing and glazing.
WACKER® DA cures at room temperature under the action of atmospheric moisture to give a permanently flexible silicone rubber.
Properties
- almost odorless
- long shelf life
- non-sag
- excellent tooling characteristics for professional use
- primerless adhesion to most materials
- readily gunnable both at low (+5 °C) and high (+40 °C) temperatures
- rapid crosslinking: quickly becomes tack-free and crack resistant
- flexible at low (-40 °C) and high temperatures (+150 °C) following cure
- excellent weatherability
- non-corrosive to metal suitable for alkaline substrates such as concrete, mortar, fibrous cement
Data sheets
Applications
• Sealing of connecting and expansion joints in the building industry
• Sealing of joints between in sanitary applications
• Sealing of joints between glazing and supporting structure (frames, transoms, mullions)
• Industrial sealant for the automotive, aircraft and shipbuilding industries
• Sealant for technical applications: e.g. for mechanical engineering and for container and silo consturction
Restrictions on use
WACKER® DA may be discolored in contact with some organic elastomers, e.g. EPDM, APTK and neoprene.
WACKER® DA is not recommended for use on natural stone, such as marble, granite, quartzite, as it can cause staining
WACKER® DA must not be used for sealing of auqaria
WACKER® DA 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.
Preparation
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.
Adhesion
WACKER® DA 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.
Packaging
WACKER® DA is usually supplied in standard size cartridges that fit all standard caulking guns.
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.
Sales and support
Bracknell RG12 1WA
United Kingdom
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