Posted 2007-10-14 9:27 AM (#69328) Subject: Caulking
Veteran
Posts: 121 Location: MO
I need to caulk the roof seams of my trailer. What type of caulk or other product do you recommend? Of course, I want something that does a good job and lasts a long time. Trailer sits outside so it is exposed to extreme heat and cold. Will I need to remove the old caulk before applying the new? I would rather just go over the top of what is existing.
Posted 2007-10-14 10:10 AM (#69331 - in reply to #69328) Subject: RE: Caulking
Expert
Posts: 2953 Location: North Carolina
Kesta ... This area has been discussed many times. Use the search button for more opinions... This is from my experience..
I think that caulking over the old leaking caulk is a waste of your time and materials. You're depending on the already failed caulk to support the new caulking.
The best and easiest method of removing the old caulk is a knife to cut the majority off. Then use a wire brush wheel in as powerful a side grinder or drill you can get. The wire brush leaves a clean metal surface for the new caulk.
Sundowner uses this caulking on the exterior of their trailers. It's very durable.
The caulk used is a moisture cured polyurethane. Manufactured by Sika Corp.
30800 Stephenson highway
Madison Heights, MI 48071, 248-577-0020
The name is Sikaflex - 221 SF, Product code is 220-242
The color I used is "AL Gray"
You might also try marine / boat supply as a place to purchase it too.
Posted 2007-10-14 10:15 AM (#69332 - in reply to #69328) Subject: RE: Caulking
Expert
Posts: 5870 Location: western PA
Another excellent caulk/ sealant/adhesive is 3M5200. It is available in most marine suppliers, big box stores etc. As was previously mentioned, a properly prepared surface is necessary for any product to work well.
Caulking
