View basket “20mm Ballast Mini Bag” has been added to your basket. £15.00 4m X 3m DPM Handipack, 300mu quantity Add to basket Category: Building Materials Description Description Damp-proof membrane (DPM) is a versatile product and can also be used for a wide range of applications; but commonly used to protect a building’s concrete slab from moisture rising from the foundations. Related products Bond-It Frost Proofer and Hardener, 5L £7.00 Add to basket Bond-It Contractors PVA £6.53 – £11.86 Select options Grano Dust Mini Bag £3.90 Add to basket 20mm Ballast Half Bulk Bag £28.00 Add to basket