- Innovative adhesives for lamination and coating of technical textiles in the building industry
Jowat adhesives for technical textiles in the building industry
Wherever adhesives are used in the manufacture of technical textiles, Jowat is the right partner. We supply a comprehensive range of innovative products to our customers, meeting the respective demands which the technical textiles have to comply with in the building industry. For lamination and coating, several thermoplastic and reactive hot melt and waterbased dispersion adhesives are used successfully.
One major area of application where adhesives are used in the building sector is the manufacture of roofing liners. These technical textiles are mostly composed of a laminated multi-layer mix of diverse materials. Depending on the installation environment in the roof, a structure promoting superior vapour permeability or a vapour barrier may be chosen.
The bonded compound has to withstand mechanical stress, must be for instance resistant against perforation due to walking, and ensure high durability when exposed to UV light. In practice, the most suitable adhesives have proven to be the polyolefin-based (PO) adhesives for lamination of polypropylene (PP) foils and fleeces. Polyurethane (PUR) hot melt adhesives are the products of choice for superior compound strength and excellent resistance to mechanical stress.
For bonded composites of fleece with a more open textile structure, like protective films for painting operations, pressure-sensitive hot melts are well established. These are above all characterised by their excellent adhesion properties, since substrates that do not adhere well, e. g. Polyethylene (PE) foils, are often used in this area.
Construction measures in road and dike building are often undertaken with fleece that has a reinforcement backing of netting. High stress is absorbed by a stable plastic netting, the spacing between the layers is assured by the fleece. The manufacturing process often requires the use of dispersion adhesives to assemble these layers. A high solid content guarantees short evaporation times and high initial strength.
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