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cracking plywood with the grain
Posted: Fri Nov 23, 2012 5:37 pm
by ClanB
Has any of you had the top layer of ply crack with the grain after applying paint or stain? I have on the last two and I swear I did not see any cracks before. I spend time sanding the deck, bottom, edges etc and I am always looking for spots to clean up. I think something like that would not get by me twice in a row.
Re: cracking plywood with the grain
Posted: Fri Nov 23, 2012 6:32 pm
by spudnut
Is it Douglas Fir marine grade?
Re: cracking plywood with the grain
Posted: Fri Nov 23, 2012 9:21 pm
by ClanB
Yup
Re: cracking plywood with the grain
Posted: Fri Nov 23, 2012 9:26 pm
by spudnut
Buy it at Stock?
Re: cracking plywood with the grain
Posted: Sat Nov 24, 2012 2:40 pm
by ClanB
Mayan Lumbar.
Re: cracking plywood with the grain
Posted: Sat Nov 24, 2012 3:41 pm
by krusher74
temp/humidity change?
Re: cracking plywood with the grain
Posted: Sat Nov 24, 2012 4:32 pm
by ClanB
Maybe Krusher. been kinda hot then cold n dry. then dewy ...but it seems both times were when I painted and or stained. It wont ruin the board . I will seal it just fine. Its just odd to me.
Re: cracking plywood with the grain
Posted: Sat Nov 24, 2012 4:46 pm
by spudnut
Douglas fir marine ply does this big time. Speaking from frustrated experience. Using fine sand paper could somehow start a new slab of top layer to rip off.
Re: cracking plywood with the grain
Posted: Sat Nov 24, 2012 8:04 pm
by ClanB
I just watched board 3 crack in front of my eyes as I applied the wood stain. What other marine ply is available besides Dug Fir?