Guest User
10/2/2009
Hello. I am wondering what the best caulking to seam commercial gutters with would be? They are commercial box gutters with 2" laps and riveted. We typically use Sonolasic 150. what do you think?
Ken Buchinger
NCI Building Systems, Inc.
10/5/2009
I always use a good urethane. NP1 is good. These are other brands that work equally well.
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