Sika 515308 Polyurethane Construction Sealant 10.1 Oz

Product Description

The SIKA 515308 is a ready-to-use, commercial-grade polyurethane construction sealant packaged in a 10.1 oz cartridge and finished in limestone color. It is formulated to seal cracks, construction joints, and penetrations in a wide range of building assemblies. The sealant cures to a permanently elastic, tough, and flexible consistency, giving it exceptional resistance to cutting, tearing, aging, and weathering. It will not harden or shrink over time. Licensed contractors, building envelope specialists, and experienced tradespeople apply this product where a long-lasting, paintable sealant is required on commercial and residential projects.

This sealant is suited for use on doors, windows, siding, roofing, gutters, sills, thresholds, basements, vents, skylights, wall penetrations, and precast panels. It bonds to most common building materials including concrete, wood, brick, aluminum, steel, glass, tile, marble, stone, and etched PVC. One 10.1 oz cartridge yields approximately 24 linear feet of sealant applied in a 1/4 inch bead. It also seals out radon gas, making it appropriate for below-grade and basement applications.

Key Features

• Permanently elastic cure — resists cutting, tearing, aging, and weathering without hardening or shrinking
• Seals out radon gas — suitable for below-grade and basement installations
• Paintable, sandable, and stainable after full cure
• Adheres to concrete, wood, brick, aluminum, steel, glass, tile, marble, stone, and etched PVC
• One 10.1 oz cartridge yields 24 linear feet at a 1/4 inch bead width
• Meets Federal Specification TT-S-00230C Type II Class A and ASTM C-920 Type S Grade NS Class 25

Compatibility

Designed for use on most common building materials including concrete, wood, brick, aluminum, steel, glass, tile, marble, stone, and etched PVC surfaces in both residential and commercial construction and maintenance applications.

Installation Notes

This product is typically applied by licensed contractors, glaziers, or building envelope technicians using a standard caulking gun. Surfaces must be clean, dry, and free of dust, oil, and loose material before application. Clean up fresh sealant immediately with a damp cloth or appropriate cleaner; remove cured sealant with paint thinner or another approved solvent. Follow all local building codes and manufacturer safety guidelines, including adequate ventilation during application.

Technical Specifications

• Volume: 10.1 oz
• Color: Limestone
• Coverage: 24 linear feet at 1/4 inch bead
• Weight: 1.109 pounds
• Material: Polyurethane
• Shelf Life: 12 months
• Standards: Federal Specification TT-S-00230C Type II Class A; ASTM C-920 Type S Grade NS Class 25
• Unit of Measure: Each

Standard Information

• Brand: SIKA
• Manufacturer Part Number: 515308