Newton HydroBond 402 - Sheet Membrane for External Waterproofing of Below Ground Structures - Type A Waterproofing Sheet Membrane

A composite of LDPE and a high-quality non-woven

geotextile fleece, the membrane is very flexible, giving

it excellent crack-bridging capability over construction

joints and cracks within the concrete. When pre-applied

before placement, the wet concrete is absorbed into the

geotextile fleece, integrally bonding the membrane to

the concrete. This results in a high strength bond with

exceptional peel adhesion qualities, and so prevents

migration of water between the concrete and the

membrane, even if the membrane is damaged.

HydroBond 402 can provide a complete waterproof

envelope to the structure to achieve Type A (barrier)

waterproofing suitable for Grades 1a, 1b, 2 and 3 as

defined by BS 8102:2022, and is suitable for all below ground and earth-retained structures from domestic

basements to the largest civil engineering projects.

Where the formwork is removed to the outer face of the

walls, a range of post-applied membranes are available,

which overlaps onto the HydroBond 402 at the raft edge,

to fully encapsulate the structure.

HydroBond 402 can be used alongside other Newton products to provide a coordinated and combined approach to the waterproofing of the whole structure that includes protection against water penetrating through construction joints, through and around service entries and to movement joints. Correctly protected, the HydroBond System will provide, under normal service conditions, a durable waterproof barrier for the life of the building to which it is installed.

Features and benefits:

• CE marked.
• To DIN EN 13967:2012-07.
• Provides a complete waterproof envelope to the structure to achieve Type A (barrier) waterproofing suitable for Grades 1a, 1b, 2 and 3 as defined by BS 8102:2022.
• Full mechanical bond to the concrete prevents water migration between membrane and structure.
• Very flexible - Resistant to movement and fissures in substrates.
• Unique pre-installed dual component (chemical fusion bond) adhesive laps at membrane edge.
• Excellent resistance to the high alkalinity of concrete.