What is a solvent-based adhesive? CR, SBC and PU contact adhesives

Solvent-based adhesives dissolve the polymer in an organic solvent, giving high initial tack and broad substrate compatibility. Types, uses and safe handling.

A solvent-based adhesive dissolves its polymer (polychloroprene, styrene block copolymer, polyurethane…) in an organic solvent. Once the solvent flashes off, the remaining film bonds instantly when the parts are pressed together — most work as contact adhesives.

Types

  • CR contact adhesives: high green strength and heat resistance; furniture, upholstery, laminates, rubber, leather.
  • SBC (SBS/SIS): fast, economical spray adhesives for foam and fabric.
  • Solvent-based PU: high strength on plasticised PVC, leather and footwear; can be used 2K.

Application

Apply thinly to both surfaces, respect the flash-off time, position carefully (first contact is final) and press firmly. Solvents are flammable: ventilate and avoid ignition sources.

See solvent-based adhesives or ask us.

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