Filling cracks on an exterior patio deck
Posted June 08 2010 - 09:22 PM
This surface gets a lot of California sun to expand and contract the wood.
My original thought was to just jamb up the cracks with the paint I will use
to finish the job. If the paint is too thick though it wont run into and fill
up the cracks. I don't want to thin up the paint, not much at least.
What kind of filler would you use... or how would you handle this?
Posted June 08 2010 - 09:34 PM
My nieghbor has wood post on his porch that cracked and he used bondo. That was 3 years ago and I think its still holding.
Posted June 08 2010 - 09:51 PM
Posted June 08 2010 - 10:56 PM
If the grain was tight, I could see maybe a crack following all the way through the plank. These cracks may be to due to pealing stemming from a lack of grain. (my non-expert opinion of course)
Posted June 09 2010 - 12:14 AM
I tried several different two-part putties, but BONDO was the easiest, strongest and cheapest. That stuff will outlast the deck.
If you are staining, then all bets are off. If you are painting, BONDO is the way to go. See my thread about mixing bondo for longer working time.
Posted June 09 2010 - 10:08 PM
Posted June 10 2010 - 02:30 PM
After trying the bondo, this process is just going to take too long. To do an 8ft board took 25min + mixing. I figure this would take me 2 days just to apply bondo.
After the bondo dried, it took 25 minutes to sand off so that the plank would not look worked on. So this sanding would take another 2 days to do a good job. I am not willing to put that kind of time in it.
I think things will go slightly faster with the polyurethane but not enough for me to make it worth it.
So what I am going to do is thin out some of the paint to the point it runs into the cracks and fills them. Then apply a much thicker cap on top. Then I will have 5 years more to think about how I want to do it the next time.
Posted June 11 2010 - 07:07 PM
Seal the ends (wood is like a straw) and let it be.
What you are proposing is shoveling merde against the proverbial tide- pardon my french
Posted June 11 2010 - 08:24 PM
If you have rotted wood, you can blast it out with a pressure washer, or you can dig it out with a chisel and use the bondo to fill the hole. It's a very cost effective solution to patching rotted wood, and it will hang on to vertical surfaces without sagging when applied properly. It has been used for years as a wood repair product. I give it a thumbs up.
Posted June 14 2010 - 06:38 PM