CRL 43S Silicone Sealant - NON-NSF

CRL 43S silicone is a high quality sealant that delivers the performance required at a competitive price. 43S is a one component, room temperature curing, acetic cure, 100% silicone elastomer that does not require the addition of activators, stabilizers, or catalysts to achieve optimum performance. CRL 43S Silicone is especially designed for joining and sealing most non-porous building materials including a variety of structural materials such as glass, aluminum, metal alloys, stainless steel, wood, and plastics. All surfaces must be properly cleaned, and the sealant tooled for good adhesion. Item No. S1L2100 Primer may be required for these and other substrates as well. CRL 43S silicone has a wide operating temperature range of -80° to 400°F and can be applied at outdoor temperatures as low as -35° to 140°F. 43S exhibits strong physical properties: 350 psi Tensile Strength; 120 psi Lap Shear at 1/8" (3 mm) thickness and Tear Strength of 25 ppi.

Applications

• sealing curtainwall joints
• steel and aluminum windows and skylights
• glass partitions
• bathtubs
• showers
• sanitary installations

Substrates

• glass
• aluminum
• metal alloys
• stainless steel
• wood
• plastics

Limitations

• not recommended for structural glazing or insulating glass glazing, concrete and stone expansion joints, horizontal decks, patios, driveway, or terrace joints where abrasion is possible
• not recommended for use on concrete, marble, limestone, lead coated surfaces, submerged joints (swimming pools and aquariums), plazas, decks, pavements, etc
• not suitable for painting
• not recommended for surfaces with special protective or cosmetic coatings such as mirrors, reflective glass, polyethylene, or polypropylene surfaces
• Remove all old sealant before applying new.
• check cartridge label and Data Sheet for additional limitations.