Sikasil DW 600ml

Sikasil DWis a one part acetoxy curing silicone sealant especially designed for joints in contact with potable (drinking) water.

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.

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, 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.