DESCRIPTION
MasterSeal P691 is a fast curing, single component,
solvent containing, moisture curing, clear polyurethane
adhesion promoting primer.
FIELD OF APPLICATION
MasterSeal P691 is designed as an adhesion promoting
primer between build up layers of MasterSeal waterproofing
systems.
It can be used as a primer for many applications, including:
• Sanded substrates prior to spray membrane
application
• Profiled metal sheet roofing
• Rejuvenation when intercoat window has been
exceeded
• Old membranes or repair applications
• GRP substrate
• UPVC and single ply PVC
FEATURES AND BENEFITS
• Excellent adhesion to aged membranes especially
where the membrane is permanently exposed to water
• Rapid cure
• Long recoating interval
• Low viscosity
• Low consumption
• Easy to apply
Packaging : 19,5 Kg/Can