Feviseal HY 100

Feviseal HY 100 Product Feature Description 

Feviseal HY 100 is a single-component, moisture-curing, low-modulus silyl-modified polymer sealant developed for sealing expansion, control, and construction joints. Combining the strengths of both polyurethane and silicone sealants, it delivers excellent elasticity, adhesion, chemical resistance, and compatibility with diverse substrates. Ideal for use in high-rise buildings, precast concrete panels, concrete-to-metal transitions, floorings, paving joints, and in damp or partially wet conditions. Feviseal HY 100 also withstands UV exposure and aggressive atmospheres, making it a reliable, long-lasting joint solution.

Key Features:

• Moisture-curing, solvent- and isocyanate-free hybrid silyl polymer formula

• High movement accommodation ±25% with elongation up to 400%

• Strong primer-less adhesion to concrete, brick, metal, PVC, ceramic, and marble surfaces

• Damp surface tolerant and non-sag paste for vertical joints

• Resistant to UV, chemicals, and aggressive atmospheres; ideal for external use

• Low dirt pick-up, non-staining, bubble-free curing with easy tooling

• Excellent low‑temperature gunability; starts curing above 5 °C