004 – IKASEAL® 990WS

IKASEAL 990WS, is a one-component, high-strength, neutral cure silicone sealant & adhesive for use on a wide variety of materials in new or remedial weatherproofing applications.

IKASEAL 990WS sealant is supplied as a paste and upon cure, produces a durable, formed-in-place silicone rubber joint sealant.

Download Brochure IIKASEAL 990WS



  • Silicone Durability, cured silicone rubber exhibits excellent long term resistance to natural weathering including: extreme temperatures,
    ultraviolet radiation, rain and snow, with negligible change in elasticity.
  • Strength Properties, combination of high tensile strength, high tear strength and the capacity to absorb high deformations (elongation).
  • ±50% Movement Capacity
  • Thermal Stability (cured state)
  • Stability Consistency (uncured state)
  • Extended Work Life and Low Sag or Slump

Tech Spec

Basic Uses

Primerless adhesion to many substrates and finishes.

May be considered a candidate for use with numerous construction-related materials, including: glass,
polycarbonate, vinyl, numerous plastics, treated and untreated wood, fluoropolymer and powder coated paints, conversion-coated and anodized aluminum, EIFS, brick, terra-cotta, ceramic and porcelain materials, concrete and natural stones.

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