Baumit DS27 is a adhesive and sealing product for bonding XPS plinth and perimeter boards below DPC, and as waterproof sealant below ground.
Mix Baumit DS27 1:1 with Portland cement. Apply to the back of the plinth boards to cover a minimum of 40% of the board for bonding and on the front below ground level following base-coat renders to act as a sealant.
Product is moisture-resistant and water-vapour permeable, with a high bond strength. It is also suitable for application onto bitumen or masonry substrates.
Size: 18 litre
Consumption @ 1:1 with cement: 2 kg/m² (bonding), 0.7 kg/m² (sealant)
Coverage/Tub: 7.7 m² front & back application on half buried plinth