Talk:Isophorone diisocyanate
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"Aliphatic diisocyanates are used, not in the production of polyurethane foam, but in special applications, such as enamel coatings which are resistant to abrasion and degradation from ultraviolet light. These properties are particularly desirable in, for instance, the exterior paint applied to aircraft."
I think this statement is limiting. Aliphatic diisocyanates can be used to manufacture polyurethane foam, they just typically are not. I don't think it is proper to use the term 'enamel' in this case; and aromatic diisocyanates can be used to make abrasion resistant coatings as well (the soft segment polyol backbone and hard segment chain extenders and cross linkers probably have a greater influence on abrasion resistance). I think it is better to refer to the coatings as weather resistant, and resistant to "degradation from ultraviolet light." Aliphatic diisocyanates are used to manufacture a wide variety of sprayable, brushable, and rollable coatings, including paints, moisture cure varnishes, top coats and barrier membranes. They are also used to manufacture caulks and sealants, as well as light-stable elastomers.
P Cottontail 07:23, 8 June 2007 (UTC)
