When laying this 1 Part DPM, it is necessary to apply 2 coats (or layers) The first coat can be diluted.. This product will cover 35m² when applying 2 coats. Eco-friendly, organic resin for the consolidation of absorbent sub-floors/substrates & the waterproofing of absorbent mineral or cement-based sub-floors/substrates with high residual humidity, ideal for use in Green Building. One-component, solvent-free, safeguards the health of operators. This 1 part damp proof membrane (DPM) raises the mechanical resistances of inconsistent sub-floors & waterproofs them to protect real hardwood, engineered & laminate floors from residual humidity, for a 100% eco-friendly safe laying.