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About Polyurethane Adhesives and Sealants
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Polyurethane adhesives and sealants provide excellent flexibility, impact resistance, and durability. They are available in one-part or two-part adhesive systems. They are available in one or two-part adhesive systems. Polyurethanes (also referred to as urethanes) are formed through the reaction of an isocyanate component with amines, polyols or other active hydrogen compounds. Polyurethane adhesives bond well to plastic surfaces and make an excellent flexible potting compound. Polyurethane adhesives require a catalyst, heat or air evaporation to initiate and complete curing.  Some disadvantages of polyurethane adhesives are their short shelf life due to hydroscopic (water absorption) tendencies and their generally slower cure combined with more complicated handling and curing procedures.


Products & Services Related to Polyurethane Adhesives and Sealants
Conformal Coatings
Conformal coatings encapsulate circuit boards and their electronic components in order to prevent the ingress of moisture, fungus, dust and other environmental contaminants.
Epoxy Adhesives
Epoxy adhesives are chemical compounds for joining components. They require clean surfaces and are valued for their toughness and resistance to chemical and environmental damage.
Gel Elastomers
Gel elastomers are highly viscoelastic polymer gel materials that have excellent shock absorption and damping characteristics. They are available in a variety of material types and grades.
Pressure Sensitive Adhesives (PSA) and Contact Adhesives
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.
Silicone Adhesives and Sealants
Silicone adhesives and silicone sealants have a high degree of flexibility and very high temperature resistance.
Thermoplastics and Thermoplastic Materials
Thermoplastics and thermoplastic materials soften when heated and harden when cooled. They can withstand many heating and cooling cycles and are often suitable for recycling.
Thermosets and Thermoset Materials
Thermosets and thermoset materials are crosslinked polymeric resins that are cured or set using heat or heat and pressure. They generally have a higher resistance to heat than thermoplastics.
See more product announcements for Polyurethane Adhesives and Sealants
TAKELACâ„¢ Polyurethane Adhesive

TAKELACâ„¢ Polyurethane Adhesive
Mitsui Chemicals America, Inc.


Superior Strength, Optically Clear Urethane

Superior Strength, Optically Clear Urethane
Master Bond, Inc.



Related Keywords
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urethane
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Amine
polyether urethane



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