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W9 Bituminous Membrane Protection Silicone Rubber Waterproofing and Protective Coating

A silicone rubber coating for waterproofing, protection and ageing-resistant renovation of bituminous waterproofing membrane roofs with ageing, cracks, looseness or localized peeling.

TECHNICAL OVERVIEW

Product and System Overview

Product Positioning

W9 Bituminous Membrane Protection is intended for waterproofing, protection and ageing-resistant renovation of bituminous waterproofing membrane roofs. It is suitable for existing membrane roofs with ageing, cracks, looseness or localized peeling. By adding a new protective coating over the existing membrane, it addresses continuing membrane ageing and performance decline caused by long-term sun exposure, helping extend service life.

Primary Functions

It enables direct protective renovation where the existing membrane remains suitable for repair, without completely removing and rebuilding the roof. It helps reduce construction waste, installation time and project cost.

Core Advantages

The coating has a peel strength of at least 0.6 MPa to the membrane, artificial weathering resistance of 3,000 hours, and suitability for environments from -50°C to 150°C. Its flexibility accommodates membrane thermal expansion and contraction while improving waterproofing and ageing resistance.

Applications

Suitable for aged bituminous waterproofing membrane roofs with cracks, looseness or localized peeling that remain suitable for repair and protective renovation.

Performance Characteristics

Adhesion to the existing membrane, peel strength of at least 0.6 MPa, 3,000-hour artificial weathering resistance, flexibility and suitability for environments from -50°C to 150°C.