Hello all. I have a dilemma on my hands (and have searched the archives to no avail). I had to let a board sit for two months with just the bottom lamination completed (poly core, poly lam). I now (finally) have time to complete the top lamination and hotcoats. The bottom is still tacky, yet I am concerned about the deck laps and hot coat bonding with the two month old bottom lam. Should I just go for it or should I give the bottom a good overall sanding with some 100 grit. Any suggestions or advice is much appreciated. On a side note I also had sprayed (airbrushed) the bottom of the board with a two inch rail wrap and pin line on to the deck with acrylic. I had a little bit of bleeding on the white deck from the free lap (which was turned into a cutlap after I saw the bleeding) which now is just “tinted” resin on foam with no glass. Can I just sand the bleeding resin/ foam combo, spray with white and proceed with my regularly scheduled program? Or will I encounter bonding issues from the sanded, airbrushed resin. A huge thank you in advance for any help provided. This community is the best.
everything sounds fine, the biggest thing i would worry about is contamination in the hotcoat on the bottom from the lam getting dirty while sitting for so long. make sure you clean with acetone as mentioned earlier. also your lamination should defiantly NOT be tacky after having two months to cure, where are you, cold climate? make sure to use enough catalyst or cobalt if necessary.
i didnt understand your bleeding issues, is it from working the foam too much with resin after the lap was wetted out? -little pieces of the colored foam sluff off and mix with the resin (looks like dust the color of the paint). if that is the case just try not to make too many passes with the squeegee.
make sure you make a lap when you laminate the deck, if you left it free when you lamed the bottom than your rails will be really weak, especially if you dont do one this time
Howzit Harvest, First I agree with LasOlas that after 2 months the lam should not be tacky still. Styrene is the ticket to bring it back. Why did you wait so long? aloha Kokua
Thanks guys. I'm going to go w/ a quick styrene wipe and proceed. I guess I should clarify that the lam was not tacky to the touch of a finger like it would be just after the lam resin kicks, but ever so slightly tacky to the plastic that was covering it (more so than just sliding off a cured Hotcoat). The plastic pulled away just fine, though the lam still "gumed" up my paper. Thank you for the help. Regards.