Sikasil® DW

• This product has been tested to meet the requirements of Regulation 31 (4)(b) of the Water Supply (Water Quality) Regulations 2000. The Secretary of State is satisfied that this product either alone or in combination with any other substance or product in the water is unlikely to affect adversely the quality of the water supplied. A copy of test reports to BS 6920-1: 2014 (M 7474P1,2 & 3) are available on request.

• Water Regulations Approval Scheme (WRAS), Approval Number: 2203515

Acetoxy silicone

12 months from date of production

Sikasil® DW must be stored in undamaged and unopened original sealed containers, in dry conditions and protected from direct sunlight at temperatures between +10 °C and +25 °C.

-40 °C min. / +180 °C max.

The joint dimensions must be designed to suit the movement capability of the sealant. For joint widths ≥ 10 mm and < 15 mm, a minimum depth or thickness of 6 mm must be applied. For larger joints contact Sika Technical Services for additional information.

+5 °C min. / +35 °C max.

+5 °C min. / +35 °C max.

Consumption depends on the roughness and absorbency of the substrate.These figures are theoretical and do not allow for any additional material due to surface porosity, surface profile, variations in level or wastage etc.

The substrate must be sound, clean, dry and free of all contaminants such as dirt, oil, grease, cement laitance, old sealants and poorly bonded paint coatings which could affect the adhesion of the sealant. The substrate must be of sufficient strength to resist the stresses induced by the sealant during movement. Removal techniques such as wire brushing, grinding, grit blasting or other suitable mechanical tools can be used. All dust, loose and friable material must be completely removed from all surfaces before application of any activators, primers or sealant. For optimum adhesion and joint durability, the following substrate priming (and/or pre-treatment) procedures must be followed:

Non-porous substrates

Aluminium, anodised aluminium, stainless steel, galvanised steel, powder-coated metals or glazed tiles. Slightly roughen surface with a fine abrasive pad. Clean and pre-treat using Sika^® Aktivator-205 applied with a clean cloth. Before sealing, allow a waiting time of > 15 minutes (<6 hours). Other metals, such as copper, brass and titanium-zinc, should be cleaned and pre-treated using Sika® Aktivator-205 applied with a clean cloth. Allow a waiting time of > 15 minutes (< 6 hours). Glass must be cleaned with Isopropanol before application.

Porous substrates

Porous substrates, specifically cement-based, must be primed with Sikagard^® 62 or coated with Sikadur^®-31 DW. For Sikagard^® 62 before bonding/sealing, allow 30 hours for the Sikagard^® 62 to fully cure. For Sikadur^®-31 DW apply at a minimum thickness of 2 mm, maximum 30 mm, and allow 5 hours / or until hard. For more details such as application and flash-off times, refer to the most recent Product Data Sheet of the respective pre-treatment product. Adhesion tests on project-specific substrates must be performed and procedures agreed with all parties before full project application. For more detailed advice and instructions contact Sika Technical Services.

Note: Primers and activators are adhesion promoters and not an alternative to improve poor preparation /cleaning of the joint surface. Primers also improve the long term adhesion performance of the sealed joint.

Clean all tools and application equipment immediately after use with Sika® Remover-208. Once cured, hardened material can only be removed mechanically. For cleaning skin use Sika® Cleaning Wipes-100.