Damp Proof Course is a sand finished sheet manufactured from a high performance carrier and modified bitumen. It does not pose any health hazard. However in the interest of good hygiene hand should be washed after used. It is intended for use as a damp-proof course. For specific physical performance data consult the product technical data. It is a strong, resilient, non-woven polyester mat that is coated with weather resistant, polymer modified asphalt. The system consists of 2 plies - base and cap. Guarantees are available for up to 15 years.