Hot melt adhesives are solvent-free formulations which become liquid when heated and are applied in molten state. To achieve a good degree of wetting, the substrates have to be joined within the open time. Hot melts are characterised by a very rapid build-up of internal strength on cooling. They are physically hardening thermoplastic adhesives which are already present in their final chemical state.
Modern hot melt adhesives from Jowat impress with excellent processing characteristics and a broad spectrum of adhesion to different materials. Short setting times facilitate a fast downline processing and therefore fast production speeds. Jowat supplies a wide range of different high-performance adhesives with special properties, which provide an ideal process solution for even the most specific and complex requirements.
Hot Melt Adhesives Provide the Following Benefits:
- a 100 % solids content, free of solvents and water
- high production speeds due to short setting times
- a wide range of adhesion to different materials
- they can level out of irregularities in the surface
- smooth surfaces due to a water-free bonding
- elastic bondlines
- can be reactivated by heat and therefore be used for precoating
- joint can be opened by heating (recycling)
Product Series & Properties
Jowatherm® EVA Hot Melt Adhesive
Basis: Copolymer based on ethylene and vinyl acetate
Properties: Good heat resistance, low resistance to solvents and plasticisers.
Packaging: Granulate, blocks, drums
Jowat-Toptherm® PO Hot Melt Adhesive
Basis: Polyolefins (based on different monomers, e.g. ethene, propene, butene, hexene)
Properties: High heat resistance, very good oxidation stability (low charring tendency), very good adhesion, narrow molecular weight distribution, low fogging, low resistance to solvents and plasticisers.
Packaging: Granulate, pillows, blocks, drums
Jowatherm® CoPA Hot Melt Adhesive
Properties: Products with high heat resistance and/or higher resistance to solvents/plasticisers compared to PO hot melt adhesives.