NEMPAL 400 Premium Roof Flashing Tape is a strong, cold-applied, self-adhesive flashing tape consisting of a long-lasting thick butyl rubber layer covered with an aluminium foil composite.
Butyl rubber in NEMPAL 400 has a much longer shelf and service life compared with bitumen, another common flashing tape material available in the market. Butyl is more flexible and resilient in various application scenarios, such as very hot or very cold temperatures. Unlike bitumen, butyl does not contain VOCs (Volatile Organic Compounds), is non-toxic, and is less odorous.
The thick butyl rubber layer in NEMPAL 400 provides superior waterproofing on uneven surfaces. Its thicker rubber layer adheres effectively and covers irregularities or laitance often found on surfaces like concrete. Unlike some thinner tape products available in the market (typically less than 1.0 mm in thickness), NEMPAL 400 is not prone to voids in the rubber layer when bent to accommodate surface unevenness or sharp angles, which could lead to potential water leakage.
NEMPAL 400 also features a superior aluminium foil composite as a protective layer for the butyl rubber underneath, shielding it from physical damage and weathering. This protective layer includes aluminium foil with a diamond-shaped texture, coated with an anti-corrosive layer on the exterior. Beneath the aluminium foil, PET film and non-woven fabric are embedded as additional layers to enhance the resiliency and mechanical strength of the protective layer.
NEMPAL 400 forms a strong and durable waterproof seal with just hand pressure. Supplied in rolls for fast and clean application, it conforms easily to awkward contours. It is suitable for a wide range of applications, including flashing, roofing, and general water sealing. No special skills or tools are required for its application.
The product bonds to most building materials including concrete, brick, masonry, slates, concrete roof tiles, wood, metal, terracotta tiles, glass, roofing felt, FRC sheets, and rigid plastics.
It can be used for applications in different scenarios below:
% Protection: flashing on flat and pitched roofs and covering, parapets and chimney stacks, pipe and tank insulations, glazing bars etc.
% Sealing & Waterproofing: glass & plastic windows frame, parapets, skylight structures, flues, concrete columns, extractor vents, coping & roof ridges, bituminous felt, capping bolts in roof sheets, Mobile Homes, RVs, Trailers, Trucks etc.
% Repair Work: existing flashing, metal and fiber cement sheet roofing, shingles, gutters and drainpipes, lead flashing, cracks in concrete, roofing felt joints on flat roofs etc.
% Quick and easy application
% Instant watertight seal
% Excellent adhesion to most substrates
% Outstanding durability
% Self-adhesive
% Resistant to punctures and other damages.
% Thicker butyl rubber
% Durable protective layer
