Fosroc Mulseal DP is a thixotropic bitumen/rubber latex compound with a solids content of 60%, suitable for damp proof membranes to retaining walls, vapour barriers to panels, and repairing fine cracks in asphalt surfaces. Where used as a sandwich membrane in floors, it should be applied with continuity to the damp course, with the final coat blinded with clean sharp sand to provide a key for the second concrete pour. A minimum of two full coats should be applied. Porous surfaces such as concrete and blockwork must be primed first with a 1:1 dilution of Mulseal DP and water. Metal and timber surfaces must be dry and primed with Fosroc Primer B2 before application. The product is water-based and remains soluble until thoroughly dry, do not apply in rain or if rain is expected, and allow 24 hours between coats. Where reinforcement is required, a layer of bitumen-saturated glass fibre can be bedded into the first full coat before subsequent coats are applied. Typical applications include as a damp proof membrane to retaining walls, vapour barrier to wall and floor panels, sandwich damp proof membrane in floor slabs and repairing fine cracks in asphalt surfaces Benefits Ready to use - single part Dries to a flexible elastic film Excellent adhesion to concrete brickwork, metals and stone Low water vapour permeability Resistant to sulphates and ground salts Cam be applied by brush or squeegee Good to know Coverage: 1.1–2.1 m² per litre per coat (minimum two coats) Application temperature: +5°C to +50°C Drying time per coat: 4–6 hours Minimum interval between coats: 24 hours DTp Specification for Highway Works May 2005 clause 2004 Protect from frost during storage, do not apply if frost expected
