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Bostik® 70-03A Silyl Modified Polymer Adhesive Sealant

Bostik® 70-03A Silyl Modified Polymer Adhesive Sealant

Bostik

(Backordered) Normally Available within 3-7 Days.

SKU:A61019

Regular price $12.51 USD
Regular price $11.18 USD Sale price $12.51 USD
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Bostik® 70-03A Silyl Modified Polymer Sealant (ISR 70-03)

Bostik® 70-03A, also known as ISR 70-03, is a high-performance silyl modified polymer (SMP) sealant engineered for demanding bonding and sealing applications across construction, marine, transportation, and industrial manufacturing. Its advanced hybrid technology offers strong primerless adhesion and long-term flexibility.

  • High-strength SMP sealant for industrial and construction applications
  • Excellent adhesion to metals, plastics, composites, and coated surfaces
  • Flexible, durable bond that withstands movement, vibration, and weathering
  • Solvent-free, isocyanate-free, and low-VOC formulation
  • UV-resistant and weather-resistant for long-lasting outdoor performance
  • Paintable after curing to match surrounding surfaces

Bostik® 70-03A / ISR 70-03 is designed for applications requiring strong, elastic sealing performance combined with professional bonding strength. Its silyl modified polymer chemistry provides primerless adhesion to many common substrates, including aluminum, coated metals, fiberglass, plastics, composites, and glass. Ideal for transportation assembly, marine construction, automotive bodywork, building components, façade systems, RV fabrication, and industrial sealing tasks, this versatile sealant cures to a tough yet flexible elastomer that resists UV exposure, moisture, chemicals, and temperature cycling. With low odor, easy tooling, and a non-shrinking formulation, Bostik® 70-03A ensures clean, durable, and long-lasting results in both interior and exterior environments.

Technical Specifications

  • Brand: Bostik® ISR
  • Technology: Silyl Modified Polymer (SMP)
  • Type: Adhesive Sealant
  • Cure Mechanism: Moisture curing
  • Properties: Flexible, durable, UV-stable, weather-resistant
  • Substrates: Metals, composites, plastics, coated surfaces, glass
  • Features: Solvent-free, isocyanate-free, low-VOC, paintable
  • Packaging: Available in cartridges, sausages, and multiple colors
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