Liquid DPM - epoxy barrier coating.
Barrier Coat is a durable solvent free epoxy coating system specially formulated for use as a water resistant membrane in both new build and refurbishment projects. It can be applied directly onto wet surfaces free from standing water when used as a primer and, when allowed to cure, will accept most adhesives, coatings and screeds. Barrier Coat has been tested and certified to meet BS 476 surface spread of flame, Class 0 and has been assessed by the Building Research Establishment for water vapour permeability.
Merlin Barrier Coat
Barrier Coat is a permanent membrane to control the transmission of water vapour from the base slab and subject to there being no future structural movement, cracking, physical or mechanical damage will protect for the life of the floor.
When fully cured and applied using the correct coverage rates and application methods, Barrier Coat will give Class 0 Surface Spread of Flame fire protection as tested by Warrington Fire Research, January 2004. Test reports WARRES numbers 136762 and 136763.
Barrier Coat when applied at the recommended minimum film thickness will give a Water Vapour Transmission rate of less than 2 milligrams per m², per 24 hours, as tested to BS EN ISO 7783-1 by the Building Research Establishment Ltd, February 2005, test report 219725/R1.
When tested using a Karsten permeability test all samples gave a nil result, Barrier Coat applied at the recommended film thickness is classified as impermeable.