501.0 Polyurethane D4 Water Resistant Adhesive

KLEIBERIT 501 is the perfect polyurethane (PUR) adhesive for bonding windows, doors, stairs, plywood to be used inside or outside, mineral building boards, ceramic materials, concrete materials and hard foams. According to DIN/EN 204, the professional building glue is rated D4 because of its ability to create strong bonds with high temperature and water resistance.

How to Use KLEIBERIT 501
Single-sided application using a spatula or hand roller to the surface which is least porous
Assemble the two pieces to be bonded
The product cures to a water-resistant, solvent- resistant and semi-rigid adhesive film when subjected to the influence of humidity (air, material). The cross-linking process can be accelerated by means of a targeted moisture supply (fine water spray), or by higher temperatures (40degC up to max. 60degC).
The cross-linking process should take place with a pressure that guarantees sufficient contact of the glued surfaces. In order to protect exposed surfaces from being contaminated with glue, apply e.g. a silicone paper to this area.
The necessary pressure is dependent upon the type and size of materials. A good closed joint should be achieved. Minimum pressure for bonding laminated wood. The more intensive the cross linking of the adhesive under pressure, the higher the subsequent load ability.