Originally Posted By: dfrend
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I still need to figure out what this is. I have not been able to get back out to try and hunt down the builder. It is a blue slightly tack substance that looks kid of like the purple PVC glue in consistency. It is "painted on in the small area of truss shown across the front and back slopes of the garage ONLY. Any ideas? Oh, the house is in the pre-drywall phase.