Mapeflex PU 50 SL

Technical Information:

Mapeflex PU50 SL is a one-component, ready-to-use, easy-to-apply polyurethane-based sealant with a low modulus of elasticity, made according to a formula developed in MAPEI’s own Research Laboratories.

Mapeflex PU50 SL cures by means of a chemical reaction with atmospheric humidity, to form a flexible product which offers a high guarantee of durability over time. This product is highly resistant to atmospheric agents and is also resistant to occasional chemical attack by hydrocarbon-derived products, such as benzene, kerosene and diesel fuel.

Mapeflex PU50 SL may only be used on horizontal surfaces or surfaces with a maximum slope of 2%. Before painting over Mapeflex PU50 SL it must be fully cured.

We recommend using elastomeric paint such as Elastocolor Paint after treating the surface of the sealant with Colorite Performance.

Always carry out preliminary tests to make sure the sealant and paint are compatible. The product is supplied ready to use in 600 ml aluminium soft cartridges or 12 kg plastic drums (approx. 10 litres).

The product has a fluid consistency for quick application and, due to its quick-hardening characteristics (approx. 2 mm every 24 hours), the surface may be put into service quickly with resulting economic advantages.

Where To Use:

 Mapeflex PU50 SL is specially formulated for sealing structural expansion and distribution joints in internal and external horizontal surfaces subject to movement of ± 25% of their original size.