Newton HydroBond 403 – Declaration of Performance

Newton HydroBond 403® is a high performance, self-healing, composite sheet membrane, with exceptional waterproofing capabilities and is an effective radon barrier, meeting the performance requirements of BR211:2023. When fitted above the raft support or to wall formwork, the membrane locking fleece is encapsulated into the HydroBond 403 Plus provides a complete waterproof envelope to the structure to achieve Type A (barrier) waterproofing suitable for Grades 1, 2 and 3 as defined by BS 8102:2022, are suitable for all below ground and earth-retained structures from domestic basements to the largest civil engineering projects, and can be used as part of the HydroBond® System with HydroBond 108-LM which is sprayed to the exposed walls of the basement after the temporary formwork is removed.