Sika® Duoflex NS

Two-Component, Polysulphide Sealant

  • Tough, elastic, rubber-like seal.
  • Remains flexible with expansion and contraction of building component without adhesive or cohesive failure, under suitable design conditions.
  • 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.
  • Effective under constant immersion or saturated conditions, when suitably primed.
  • USDA acceptance (NS grade only).