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We want to make polyurethane-type sealants for some construction applications but do not want to handle isocyanates. What are the alternatives?

Our annual reference guide includes descriptive product overviews for equipment used in the adhesives and sealants industry.

The probable reason for your problem is the ultraviolet (UV) transparency of the plastic and the fact that epoxy bonds are not very UV resistant. Even epoxy coatings are not recommended for outdoor applications because they discolor under UV.

At my house, tape is a precious commodity. Whether it’s needed for wrapping a gift, or my kids’ use in building a robot out of random empty boxes, or adhering doodads to the pages of a scrapbook, we go through roll after roll of the stuff. But what about more high-tech uses of tape? Foam tapes are used in a range of markets, such as automotive, packaging, electronics and medical, and serve a number of functions.

Both of these types of adhesives have the advantage of not containing solvents and being single component, so no measuring or mixing is involved. In addition, they both use moisture to initiate the curing.