MASTIPREN ST is a fixing adhesive sealant based on polychloroprene. The film is flexible and has very good adhesion on most traditional building materials.


MASTIPREN ST is used for bonding wood or PVC skirtings, PU beams, strips, metal corners, insulating foams (not polystyrene),on concrete, wood, plaster, metals,…
For fixing of wood panels, chipboard, plywood, plasterboard panels, stair nosings, sound insulating features, stones, sandstone, stoneware, fine ceramic…
MASTIPREN ST can also be used to insure tightness of junction between painted plates in car-repairing.


Materials preparation :
They must be flat, dry, dust free and not have any traces of grease or other contaminants that could adversely affect the bonding performance.
They may be cleaned with EMFINET 695. For materials sensitive to ketones, use EMFINET 688/1.
Check the compatibility of the solvent used with the materials.
When using solvents, extinguish all sources of ignition and carefully follow the safety and handling instructions given by the manufacturer.
If necessary, rub down metal surfaces beforehand. Clean them after rubbing down. Let solvents dry after degreasing.
Temperature of adhesive and substrates have to be between 5 and 30 °C.

Application :
Apply MASTIPREN ST to one of the substrates to be bonded by a manual or pneumatic gun or with a spatula.
Apply beads or strips on the material to be bonded and put this one on the substrate in order to transfer the adhesive.
Pull off, wait some minutes (light materials : 3 min, heavy materials :5 min) and assemble in applying a uniform and high pressure across the entire surface.
The initial strength is high ; the final strength is reached after 48 hours.