The liquid epoxy damp proof membrane is a two-component epoxy resin membrane, specifically designed to be applied to damp floors to create a new surface damp proof membrane on concrete floors where the original damp proof membrane is missing or has broken down.
How does the epoxy membrane work?
Used on concrete floors and fine concrete screeds, the solvent-free membrane reduces the passage of water vapour and acts as a barrier against residual moisture. The membrane must only be used on concrete floors and concrete screeds, of no less than 50mm thick in the case of un-bonded screeds. The surface you want to damp proof must be of sufficient quality and free from debris and residual contaminates for example bitumen to ensure you achieve an even coating.
How to prepare the surface before applying liquid epoxy DPM?
It is important that you prepare your concrete surface before application. First of all, clean the area removing all previous coating or surface contaminates especially flooring adhesive or bitumens. Remove any debris by vacuuming the area and check for any surface water. The surface should be clean and free from any surface water before applying the damp proofing membrane.
How do I apply the membrane?
Begin by mixing the hardener and the base using a slow speed power stirrer. This will ensure that the solution is thoroughly mixed, consistent and free from streaks. The best method to apply the solution is to use a nylon roller. Areas of the concrete which need multiple coats should be built up, allowing not less than 12 hours and not more than 48 hours between coats.
Health & Safety
Remember to wear protective clothing, such as gloves and glasses to protect your skin and eyes.
Read our guide to How to install epoxy flooring.