Sika Duoflex NS 2-Component, Non-Sag, Premium-Quality Polysulfide Sealant, 1.5 Gallon

Sika Duoflex NS 2-Component, Non-Sag, Premium-Quality Polysulfide Sealant, 1.5 Gallon

Sika® Duoflex NS is a two-component, non-sag, premium-quality polysulfide sealant, specifically designed for vertical and overhead surfaces. Certified under NSF/ANSI Method 61 and USDA acceptance. Sika® Duoflex NS meets - ASTM C-920, Type M, Grade NS, Class 25, Use I, NT, M, G, A and O.

Uses:

Sika® Duoflex NS is suitable for either exterior or interior use to seal both static and dynamic joints:

• Joints in precast concrete.
• Joints in glass and metal curtain wall construction.
• Expansion and control joints in concrete and masonry walls.
• Joints in metal siding.
• Perimeters of aluminum window frames and metal panels.
• Joints located in gas stations /refueling environments.

Advantages:

• Tough, elastic, rubber-like seal.
• Remains flexible with expansion and contraction of building component without adhesive or cohesive failure, based on good joint design.
• Stays resilient within a wide temperature range.
• Excellent resistance to water, oils, grease, most solvents, mild acids and alkalis.
• Tenacious adhesion to concrete, metal, wood, glass, stone, ceramic and masonry surfaces in any combination, typically without the need for priming with Sika® Duoflex Primer-5050.
• Effective under constant immersion or saturated conditions, when suitably primed.