Description

Product Overview: Sikaflex Construction Sealant – Aluminum Gray

Sikaflex Construction Sealant – Aluminum Gray is a professional-grade, moisture-cured, polyurethane-based elastomeric sealant. Engineered for non-sag performance, this sealant is designed for a wide range of building and construction joint sealing applications.

Sikaflex Construction Sealant – Aluminum Gray Technical Specifications

• Chemical Base: Polyurethane.
• Packaging: 10.1 fl. oz. (299 ml) moisture-proof composite cartridge; sold as 12 cartridges per case.
• Color: Aluminum Gray (also available in White, Limestone, Capitol Tan, Dark Bronze, Black).
• Approved Standards: ASTM C 920, Type S, Grade NS, Class 35 (use NT, T, O, M, G); Federal specification TT-S-00230C Type II, Class A; Canadian Standard CAN/CGSB 19.13-M87.
• Shelf Life: 15 months in original, unopened containers.
• Storage Conditions: Store at 40 to 95 °F (4 to 35 °C); condition material to 65 to 75 °F (18 to 24 °C) prior to use.
• Shore Hardness (21 days): 45 ± 5 (ASTM C-661).
• Tear Strength: 55 lb./in. (ASTM D-624).
• Movement Capability: ±35% (ASTM C-719).
• Service Temperature Range: -40 to 170 °F (-40 to 77 °C).
• Cure / Handling Times: Tack free: 3–6 hours; Final cure: 5–7 days (depending on temperature and humidity).
• Chemical Resistance: Good resistance to water, diluted acids, and diluted alkalines.
• Adhesion (Peel): Concrete / Aluminum / Glass — 20 lb (9 kg) with 0% adhesion loss (as tested).
• Coverage (10.1 oz / 299 ml cartridge): Yield in linear feet by joint size: 1/4″” x 1/4″”: 24.3 ft; 3/8″” x 1/4″”: 16.2 ft; 1/2″” x 1/4″”: 12.1 ft (other widths/depths as per cartridge yield table).

Applications & Material Features

Sikaflex Construction Sealant is designed for chemical and structural compatibility in vertical and horizontal joints where the maximum sealant depth does not exceed 1/2″”. Professional applications include:

• Weatherproofing and sealing joints in concrete and masonry structures.
• Sealing window and door perimeters.
• Sealing expansion joints.
• Sealing joints and gaps in walls, floors, balconies, and trims.

This sealant offers the following performance capabilities and material characteristics:

• Substrate Versatility: Bonds to most construction substrates without primer. It can be applied to green/new concrete and concrete that has been wet.
• Durability: Features permanent elasticity after cure, stress relaxation properties, and exceptional cut and tear resistance.
• Appearance & Finish: A non-staining formula that is paintable with water-, oil-, and rubber-based paints.