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Pressure sensitive adhesives (PSA) and contact adhesives adhere to most surfaces with very slight pressure. They are available in solvent and latex or water based forms. Pressure sensitive adhesives and contact adhesives are often based on non-crosslinked rubber adhesives, acrylics or polyurethanes. Pressure sensitive adhesives form viscoelastic bonds that are aggressively and permanently tacky; adhere without the need of more than a finger or hand pressure; and require no activation by water, solvent or heat. Pressure sensitive adhesives are often based on non-crosslinked rubber adhesives in a latex emulsion or solvent-borne form.

Pressure sensitive adhesives and contact adhesives are available in a wide variety of chemical compositions or systems. Some of the most common types of systems include acrylic and methacrylate adhesives, rubber-based pressure sensitive adhesives, styrene copolymers (SIS / SBS), and silicones. Acrylic adhesives are known for excellent environmental resistance and fast-setting time when compared with other resin systems. Acrylic pressure sensitive adhesives often use an acrylate system. Ethylene ethyl acrylate (EEA) or ethylene methyl acrylate (EMA) copolymers are used to form hot melt PSA adhesives. Natural rubber, synthetic rubber or elastomer sealants and adhesives can be based on a variety of systems such silicone, polyurethane, chloroprene, butyl, polybutadiene, isoprene or neoprene. Rubber and elastomers are characterized by their high degree of flexibility and elasticity (high reversible elongation). Styrene-isoprene-styrene (SIS) and styrene-butadiene-styrene (SBS) copolymers are commonly applied in pressure sensitive adhesive applications. Silicone is produced through the hydrolysis and polymerization of silanes and siloxanes.

Pressure sensitive adhesives and contact adhesives are available in a variety of bond strengths. Some styles are aggressive and permanent. The substrates to be bound must be aligned perfectly on the first pass, as the application of the adhesive will result in an immediate bond. Other types of pressure sensitive adhesives and contact adhesives are removable or allow for repositioning without leaving adhesive on the substrate or delaminating part of the substrate.

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Products & Services Related to Pressure Sensitive Adhesives (PSA) and Contact Adhesives

Anaerobic Adhesives and Anaerobic Sealants

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

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.

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.

Plastic and Rubber Balls

Plastic and rubber balls are sphere shapes that are used as check or ball valves, bearings, and in other applications.

Plastics and Plastic Materials

Plastics 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 rubber 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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