Expansion Joint Sealer

ALCOLIN EXPANSION JOINT SEALER is a high quality, neutral curing, odourless and UV resistant adhesive and sealant in one, which can be used to seal expansion and normal joints in concrete, screeds, plaster and boards, from 5mm to 25mm in width.

Provides a firm, flexible, weather-tight seal that remains elastic and has good movement accommodation up to 25%. Unlike normal silicone, it is paintable and provides excellent primerless adhesion to a much wide variety of substrates, including damp surfaces.


280ml cartridges

Uses / Applications

  • Neutral curing – suitable for alkaline surfaces
  • Non corrosive
  • Elastic – good movement accommodation
  • Adheres to damp surfaces
  • Paintable
  • One part formulation – no mixing required
  • Non staining
  • Easy to apply with caulking gun, from 5°C to 35°C
  • Remains flexible from -40°C to approximately 100°C
  • Excellent UV resistance and durability for outdoor applications
  • Excellent mechanical and chemical properties
  • Gap filling and non-shrinking
  • Non-flammable, odourless
  • Non toxic – contains no isocyanates
  • Sealing of expansion and movement joints in walls, floor and paving joints
  • Sealing of precast and partition units
  • Sealing of air-conditioning and ventilation joints
  • Sealing around swimming pools
  • Sealing between building carpentry and masonry
  • Sealing joints that must be painted over
  • Sealing cracks in plaster
  • Weather sealing between doors/window frames and plaster
  • Mounting of mirror, panels and insulating sheets
  • Bonds dissimilar surfaces – concrete, aluminum, brick, polystyrene, etc.

Other Information

  • Not suitable for expansion joints greater than 25mm
  • Not suitable for underwater application
  • May not bond to certain plastics and rubbers, test before use
  • Does not adhere to polyethylene, polypropylene, Teflon, plasticized PVC and bituminous surfaces

This product is currently out of stock and unavailable.