Joint Sealants & Accessories

Dowsil Silicone Sealants and Sika Polyurethane Sealants amongst others are stocked as well as a complete range of tools and accessories associated with joint sealing.

DOWSIL 888:
Dow Corning 888 Silicone Joint Sealant and Dow Corning 890-SL Self-Leveling Silicone Joint Sealant are designed for use in highway and airport joints calling for a tough sealant that can withstand excessive horizontal and vertical movement, has good weatherability and is easy to install with a short downtime and long service life one-part silicone. These sealants cure upon exposure to moisture in the air to form a permanently flexible, low- to ultralow-modulus, high-elongation silicone rubber seal. Dow Corning 902 RCS Joint Sealant is a rapid-cure, self-leveling, two-part silicone rubber sealant designed to seal expansion joints primarily intended for use in expansion joints found on bridges that vary in width from 25 to 76 mm at the time of sealing.

DOWSIL 902:
RCS joint Sealant is a rapid-cure, self-levelling, two-part silicone rubber sealant designed to seal expansion joints primarily intended for use in expansion joints found on bridges that vary in width from 25 to 76mm at the time of sealing.

DOWSIL 795:

Foam Backing Rod:

Closed cell Polyethylene or Open Cell Polyurethane Foam Backer rods are used as compressible backup material in joints. It is inserted into a joint to control sealant depth creating a backstop that allows proper sealant curing, proper sealant wetting of the joint surfaces, insulate underside of sealant and acts as a bond breaker between the substrate and the sealant.

Tremco Polyurethane Sealants:

Dymonic 100 is a high performance, medium-modulus, low-VOC, UV-stable, non-sag polyurethane sealant. Formulated with an innovative polymer technology, Dymonic 100 is a highly versatile sealant that far surpasses the movement capability of competitive products and has the unique ability to adhere to damp and green concrete. Dymonic 100 has a skin time of 2 hours with a tack-free time of 6-8 hours to significantly reduce dirt pickup. It has a movement capability of +100/-50% in typical field conditions, is paintable and will not crack, craze or yellow under extreme UV exposure. It is also jet fuel resistant.

Basic Uses:

• Expansion and control joints

• Precast concrete panel joints

• Perimeter caulking (windows, door, panels)

• Aluminium, masonry and vinyl siding

Dymonic® FC:

Is a low-modulus, one-component, moisture-cure, polyurethane hybrid sealant formulated with proprietary silane end-capped polymer technology. Dymonic FC provides the best performance characteristics of polyurethane and silicone sealants. Dymonic FC is a durable, flexible sealant that offers excellent performance in moving joints and exhibits tenacious adhesion once fully cured. It is fast curing with a skin time of 60 minutes and a tack-free time of 3-4 hours to significantly reduce dirt pickup.

Basic Uses:

• Expansion and control joints

• Precast concrete panel joints

• Perimeter caulking (windows, door, panels)

• Aluminium, masonry and vinyl siding