Newton Mastic Sealant A18 380ml
Newton Mastic Sealant A18 is a high quality, multifunctional Newton silicone sealant specifically designed for use with HDPE cavity membranes that once cured, provides a waterproof and airtight seal.
Seal membrane plug fixings.
Seal around protrusions such as service pipes and plug sockets.
To plug mis-drilled holes and other general repairs.
To seal butt/lap joints to membrane systems.
Applied using a standard 400ml mastic gun. Minimum bead size: 6mm.
- Stops efflorescent salts
- Prevents staining on finish
- Seals the plug to the membrane
Use Newton 801 Mastic Sealant only in well ventilated rooms, and ensure good ventilation whilst curing.