Join Date: Oct 2009
Location: Swarthmore, PA
Thanked 81 Times in 71 Posts
Rep Power: 6
DO NOT use your finger if you're using polyurethane sealant. Isocyanates are very dangerous. You might do OK with it for while, but over time you could build up a sensitivity that causes a severe allergic reaction (rash all over your body, respiratory distress, etc.). Yes, it could happen from just getting your finger exposed.
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Formerly posted as "RhythmDoctor"
1998 Catalina 250WK Take Five (at Anchorage Marina, Essington, on the Delaware River)
1991 15' Trophy (Lake Wallenpaupack)
1985 14' Phantom (Lake Wallenpaupack)