SikaFill®-420 Extreme

CONSTRUCTION MATERIALS

A highly elastic, UV-resistant liquid membrane for waterproofing new or renovated roofs.

Sika SikaFill®-420 Extreme · SikaAmpliar

Description

High-Performance Waterproofing

SikaFill®-420 Extreme is a single-component, water-based, solvent-free liquid waterproofing membrane. It is applied cold and forms a continuous, highly elastic coating that is resistant to UV rays, yellowing, and weathering.

New Roofs and Renovations

It is designed to waterproof roofs with complex geometries, numerous joints, or limited access. Its adhesion to both porous and non-porous substrates and its ability to bridge cracks allow it to be used in both new construction and to extend the service life of existing waterproofing systems.

Application and Reinforced System

It can be applied in two or three coats as a coating. To form a reinforced waterproofing system, it is combined with Sikalastic® Fleece 120 or Sika® Reemat Premium. It is water vapor permeable and allows the substrate to breathe. The white version also features high solar reflectance, which is particularly beneficial for roofs exposed to heat.

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