8. EPI (Emulsion Polymer Isocyanates)

These are two-component adhesives:

• a polymer containing reactive hydroxyl groups —OH in aqueous emulsion;

• a hardener, which is a special protected isocyanate.

The evaporation of water from the emulsion and heat cause the isocyanate to react with —OH, resulting in "cross-linking" and curing.

These EPI adhesives offer excellent adhesion to a wide range of substrates (wood, metal) and high water resistance, making them ideal for a variety of outdoor applications:

• exterior joinery ;

• assembly of window frames, etc.