Re: Butyl compound VS urethane compound for window install
Originally Posted by erster
Thanks Mike for the etching recommendation.It never occured to me the perfectly smooth glass would present challenges for the compound to get a grip on.Makes perfect sense to me, sanding fool that I am, to give the glass some tooth.
I'll give the company a call tomorrow to see what they have in way of chemical etchs. By the way, the faying surfaces of the window frames were sealed with a couple of coats of epoxy sealer then sanded rough with some 80 paper.The interior moldings,3/8" X 1" mahogany, which will hold the window in place(along with the compound) have already been pre-coated with 3 coats of Cetol Marine, with the "varnish" to come after the installation. I do not intend on painting the bedding compound and expect to see only a fine black line where the stuff is. Also, I went looking for Sika 240 you mention and see it has apparently been replaced by Sika 291 LOT. The same gunk I used to do my cabin soles for the fake laid deck effect.
Would you or anyone else reading this, know whether there is a significant difference between a polyurethane product like Sika and a butyl product,performance wise, for this particular application?
Thanks again for your reply Mike and hope it is not too cold down your way.....lucky devil!
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