EMB Elastomeric

Overview

EMB elastomeric membrane is a liquid applied coating based on polyurethane prepolymers extended with tar, which cures by reaction with atmospheric moisture to give a continuous film that is rubber-like and elastic.

EMB is a high solid coating designed to give a high-build film. It can be applied by brush or squeggee but it has a higher viscosity than a conventional paint and should not be diluted.

EMB complies with coatings standard ASTM C836; Standard Specification for High Solids Content, Cold Liquid-Applied Elastomeric Waterproofing Membrane for Use with Separate Wearing Course.

It cures to a permanently flexible seamless membrane that, by virtue of its chemical reactivity in the wet state, has good adhesion to a wide range of substrates. Unlike more traditional bitumen based products, EMB does not readily embrittle with age, exposure to ultra violet radiation or weathering, and hence it does not crack or craze ( European conditions ).

Since it is elastomeric EMB is not adversely affected by extremes of temperature consequently it is resistant to cracking at low temperatures and does not suffer thermal flow at elevated temperatures.

Isothane elastomeric membranes are designed to bond to many types of substrate particularly those commonly requiring a waterproof membrane in ‘tanking’, above and below ground, and internal wet area sections of buildings. It is essential that the substrate and structures are properly prepared, and stable. Surfaces previously treated with silicone-based materials will inevitably be difficult to overcoat and this should not be attempted with Isothane products.

EMB can be applied by brush, squeggee or roller without the need to mix, stir or heat before application.

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