Sikaflex-1a is a premium-grade, high performance, moisture-cured, one-component, polyurethane-based, non-sag elastomeric sealant.
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Capable of ± 35 % joint movement
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Eliminates time, effort, and equipment for mixing, filling cartridges and cleaning of equipment
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High elasticity - Cures to a tough, durable, flexible consistency with exceptional cut and tear resistance
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Excellent adhesion - Bonds to most construction materials without primer in most cases
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Excellent resistance to aging, weathering
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Readily placeable at 4 °C (39 °F)
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Resists to fuel, mineral oils, and dilute minerals, plant and animal fats
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Odorless, non-staining, can be painted over with water, oil, and rubber-based paints. Since some paints dry slowly and the surface may remain slightly tacky, a preliminary test is essential
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Meets CAN/CGSB 19.13-M87, Classification MCG-2-25-B-N, Federal Specification TT-S-00230C, Type II, Class A, Federal Specification Spec TT-S-00227E and ASTM C920 Type S, Grade NS, Class 35. Use T, NT, O, M, G, I
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ANSI/NSF Standard 61 approved for contact with potable water (Black, White, Colonial White, Aluminum Grey, Capital Tan, Limestone, Dark Bronze colours only)