Information about Hot Melt Adhesives

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About Hot Melt Adhesives

Hot melt adhesives are solvent-free chemical compounds that are used to join materials. They can be repeatedly softened by heat and hardened or set by cooling, allowing parts to be removed or repositioned during assembly. Most hot melt adhesives solidify at temperatures below 180° F and become low viscosity fluids at temperatures above 180° F. They form strong bonds, set rapidly upon cooling, and are relatively easy to handle. In general, hot melt adhesives are more resistant to water, moisture, and humidity than thermoplastic polymers. Some products contain acetals, acrylics, elastomers, natural or synthetic rubbers, epoxy resins, water-based resins, wax-based binders, styrene compounds, or vinyl systems. Others contain bituminous substances, ethylene copolymers, styrene copolymers, glues and gums, polyamides, thermoplastic polyesters, vinyl esters, or polyethylene (PE). Commonly used chemical systems also include polypropylene (PP), polysulphone, polyurethane (PUR), polyetherimide, and polyolefin. Filled or reinforced compounds consist of resins with additional modifiers such as fillers, pigments, or chopped fibers.

Products & Services Related to Hot Melt Adhesives

Anaerobic Adhesives and Anaerobic Sealants

Anaerobic adhesives and anaerobic sealants cure in the absence of air or oxygen.

Casting Resins

Casting resins are pourable plastic or elastomer compounds used to cast parts, make molds or form a structure in place.

Cyanoacrylate Adhesives

Cyanoacrylate adhesives are one-part acrylate adhesives that cure instantly on contact with mated surfaces through a reaction with surface moisture. Cyanoacrylates are often called super glues.

Electrical Resins and Electronic Compounds

Electrical resins and electronic compounds includes adhesives, greases, pads, stock shapes, tapes, encapsulants, potting compounds, thermal interface materials, and electrically conductive substances used in electrical, electronics, and semiconductor applications.

Polymers and Plastic Materials

Polymers and plastic materials are organic, synthetic or processed polymers that are supplied as raw materials or stock shapes. They typically consist of thermoplastic or thermosetting resins and can be made into many forms.

Rubber Adhesives and Sealants

Rubber adhesives and sealants are highly flexible, natural or synthetic materials that are used to join components or fill gaps between seams or on surfaces.

Thermal Compounds and Thermal Interface Materials

Thermal compounds and thermal interface materials form a thermally conductive layer on a substrate, between components or within a finished product.

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