Post by: dwils233 on May 20, 2024, 09:23:05 PM
It's not resting on solid material so I don't think it's a job for caulk, but I'm looking for advice/opinions. I think a seal/patch on the top over the whole crack area from edge to edge is better than trying to fill the void.
Y'all are smart and handy though so I'm looking for your thoughts and recommended materials!
Post by: dwils233 on May 20, 2024, 09:25:12 PM
Post by: Platensek-po on May 20, 2024, 09:25:28 PM
Fix a couple
Of kayaks and it’s held up well.
https://www.amazon.com/655-8-Pre-Thickened-Part-Epoxy-Adhesive/dp/B00LWKFZJ8/ref=asc_df_B00LWKFZJ8/?tag=hyprod-20&linkCode=df0&hvadid=693270349644&hvpos=&hvnetw=g&hvrand=4002036735243988010&hvpone=&hvptwo=&hvqmt=&hvdev=m&hvdvcmdl=&hvlocint=&hvlocphy=9033553&hvtargid=pla-574123118372&psc=1&mcid=c0880f8ec6d13b529345d9c87c46ec54&gad_source=1
Post by: MADMAX on May 20, 2024, 09:37:55 PM
Post by: CP on May 21, 2024, 08:02:37 AM
If you search YouTube for “plastic welding” you’ll find several how-to videos.
Post by: baker5150 on May 21, 2024, 08:39:37 AM
You may also get away with a butyl tape that has a UV backing.
There is a reason it cracked and separated, so unless I knew why and could fix the root cause, I would want whatever repair I do to be able to move and flex while also staying sealed.
Post by: Sneaky Squirrel on May 21, 2024, 09:50:18 AM
I'd simply use caulking. Sikaflex or Vulkem are my go-to.
You may also get away with a butyl tape that has a UV backing.
There is a reason it cracked and separated, so unless I knew why and could fix the root cause, I would want whatever repair I do to be able to move and flex while also staying sealed.
I would agree with this. On the first picture, it looks like there is a nail or staple coming thru the wood. Wondering if when they were installing the plastic and snapping/attaching it, it caused it to crack as it is protruding out. If that is the case, seems like any of the options above would work but i would try to cover at least 6" coverage just in case if it breaks more.
Post by: dwils233 on May 21, 2024, 09:57:54 AM
There is a reason it cracked and separated, so unless I knew why and could fix the root cause, I would want whatever repair I do to be able to move and flex while also staying sealed.
Bingo, that's why I wasn't sure best approach. If the plastic was hardened and then cracked on expansion/shrinkage, I want my fix to account for that in the future. Silicone has some flex, but you think the poly base would be better? I can't really fill the cavity, I need to essentially do a thin fill and focus on edge to edge adhesion across the gaps
Post by: hunter399 on May 21, 2024, 11:20:29 AM
We used it on a swimming pool last year. While it had water in the pool leaking. Put that tape on the outside and it stopped leaking.
Anyway it shocked me how well it worked.
Look up flex seal tape on Amazon
Post by: rainshadow1 on May 21, 2024, 12:45:20 PM
Post by: Platensek-po on May 21, 2024, 03:31:04 PM
Post by: Dan-o on May 21, 2024, 03:59:30 PM
You can use the extra to build a boat.
Seriously, I used Flex Seal on a leaky sunroof in my truck. Hasn't leaked in 10 years since.
Post by: elkaholic123 on May 21, 2024, 04:09:54 PM
Post by: Wood2Sawdust on May 21, 2024, 05:02:30 PM
Post by: Wood2Sawdust on May 21, 2024, 05:05:33 PM
Post by: wadu1 on May 21, 2024, 05:57:21 PM
Not silicone , it does not last long . Also if you have old tubes of silicone it sometimes will not set up. Sikaflex has worked for me on other parts of trailers@Wood2Sawdust is right, don't use silicone. It may be OK for a short-term fix, but you'll regret later. Silicone tends to leave a residue after removal, any other sealer may/will not adhere when you need to re-due the area.
Post by: elkaholic123 on May 21, 2024, 07:17:53 PM
Post by: bigdub257 on May 21, 2024, 07:48:41 PM
I think this is what I used!
That's what I would suggest. It definitely won't come off!
Post by: dwils233 on May 22, 2024, 10:11:08 AM
Post by: HntnFsh on May 22, 2024, 10:33:23 AM
There is rolls of tacky tape they use for sealing around skylights. I got some that was 4 inches wide and you peel the surface wax paper off and it sticks and doesn’t let go, you can purchase it at any rv parts store!
This is the way to go!
Post by: Irish_hunter93 on May 29, 2024, 10:51:41 PM
Post by: rainshadow1 on May 30, 2024, 12:06:40 PM
Post by: Duckslayer89 on May 30, 2024, 03:27:43 PM
5200 takes forever to cure but its sure bulletproof once it does. Windoweld Urethane is good too. And E6000.
Fast cure 5200 cures in good time. Red can instead of blue.