AndSeal DPM - Epoxy Damp Proof Membrane

AndSeal DPM is a high-performance, two-pack epoxy resin system designed as a surface-applied damp proof membrane for concrete floors. It is specifically formulated to suppress residual moisture in new or existing concrete, allowing floor coatings or coverings to be installed without the risk of failure.

Ideal for use in industrial, commercial and public sector environments, AndSeal DPM provides an effective barrier against moisture vapour transmission and helps prevent blistering, delamination and other floor coating issues caused by rising damp.

With excellent adhesion, durability and chemical resistance, it is the perfect preparation layer for epoxy, polyurethane and other high-performance floor systems.

Surface Preparation 

• Concrete must be at least 7 days old and have a maximum moisture content of 97% RH.

• Remove laitance, weak or friable material by mechanical preparation (e.g. diamond grinding, shot blasting, vacuum blasting).

• Surfaces must be clean, dry, and free from oil, grease, dust and other contaminants.

• Vacuum all residues before application.

• Repair cracks, holes or surface imperfections prior to coating.

• Do not acid etch.

Technical Data

• Type: Two-pack solvent-free epoxy resin

• Finish: Gloss/semi-gloss

• Colour: Clear, Red, Grey

• Pack Sizes: 5kg and 20kg units

• Mix Ratio: Supplied in pre-measured packs

• Pot Life: Approx. 20–30 minutes at 20°C (shorter at higher temperatures)

• Recoat Interval: 12–24 hours depending on temperature

• Full Cure: 5–7 days at 20°C

• Film Thickness: 200–300µm per coat

• Coverage: 3–4m²/kg depending on surface porosity and preparation

• Adhesion: Excellent bond to correctly prepared concrete

• Moisture Resistance: Up to 97% relative humidity

• Chemical Resistance: Resistant to a wide range of mild chemicals, oils and solvents

• VOC: Low, solvent-free system

Directions for Use / Application

• Mixing: Add the hardener component into the base and mix with a slow-speed drill and paddle for at least 2–3 minutes until uniform. Do not part-mix.

• Application Method: Apply by brush, roller or squeegee, working the product well into the substrate.

• Number of Coats: Apply one or two coats depending on moisture levels and substrate condition.

• Recoating: Apply subsequent coats after 12–24 hours but within 48 hours to ensure intercoat adhesion.

• Environment: Substrate, air and material temperature must be between 10°C and 25°C during application and curing. Substrate must be at least 3°C above dew point.

• Cleaning: Clean all tools and equipment immediately after use with AndCoat Thinners.

• Storage: Store in unopened containers in a dry, well-ventilated area at 5°C–30°C. Protect from frost.

• Shelf Life: Minimum 12 months in original sealed containers.

Data Sheets

AndSeal DPM - TDS

AndSeal DPM Part A - MSDS

AndSeal DPM Part B - MSDS