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Polyurea Adhesives and Sealants

SpecialChem | Edward M Petrie - Feb 24, 2010

This article provides an introduction to polyurea chemistry. It reviews the advantages and disadvantages of these interesting polymers in adhesive and sealant applications. Formulation principles are given to achieve adhesive and sealant products that have fast cure with certain properties that are superior to conventional polyurethane systems.Polyurea adhesives and sealants offer fast-curing systems with very interesting properties. Polyurea chemistry has been well developed for high performance maintenance coatings. However, polyureas are not well known as adhesives or sealants except in applications that require exceptionally fast cure, such as high volume assembly of parts, construction sealants when inclement weather might adversely affect a slower curing product., or as adhesives and sealants for automobile manufacture. Polyureas are similar to polyurethanes but they are based on reacting an isocyanate with a multifunctional amine rather than with a polyol.
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SpecialChem4Adhesives Members Reactions

urea adhesives - Aug 28, 2010
posted by Izu Egege, Corporate Management at Pro-Consultancy
yes...they are commonly used in wood adhesion and modified with an alcohol for a wood varnish.

- May 02, 2010
posted by Mou-fa Yu, Technical Service/ Customer Assistance at wanshun packing material company

End application - Mar 23, 2010
posted by Anonymous
It seems interesting as urea is a cheap raw material. Which could be the end use of this kind of polymer? Any experience?

interesting article - Mar 03, 2010
posted by Yi Lin Liao, R&D - Basic Research at NTU
It is interesting to comparing the differences between polyurea & polyurethane.

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