Dennis Storzek wrote:

Keep in mind, however, that contact cements are formulated with a mixture of solvents that have different rates of evaporation. The fast solvents are expected to flash off quickly, before the parts are brought together, while the slower solvents keep the glue soft and pliable so it will bond to itself. . . These slower solvents will also soften styrene.

Exactly. It may just take longer. I was speaking of freight car floors which had been glued to the weight years earlier.

Tony Thompson Editor, Signature Press, Berkeley, CA
2906 Forest Ave., Berkeley, CA 94705 www.signaturepress.com
(510) 540-6538; fax, (510) 540-1937; e-mail, thompson@...
Publishers of books on railroad history