Caulk
Have a couple of places to redo. What is best caulk to use?
Forum Discussion
9 Replies
walker111 wrote:
I need to seal around a new vent on exterior wall from stovetop and was going to ask a similar question.
Will try the sikaflex as a fellow in Calgary above recommends!
Thanks
Sikaflex 221 is an excellent sealant. Any good quality polyurethane like the 221 or a polyether (tri-polymer) like Chemlink M1 will do a good job. Avoid silicone!- I need to seal around a new vent on exterior wall from stovetop and was going to ask a similar question.
Will try the sikaflex as a fellow in Calgary above recommends!
Thanks - I just did a fair amount of research because I need to re-caulk pretty much all of our 9 year old Mobile Suites. I have always used Dicor self-leveling on the roof and it is the best. I tried it on horizontal and vertical seams on the side and I didn't like the outcome. -More research.- Decided to try Geocel 28100V Pro Flex Crystal Clear RV Flexible Sealant. This stuff works great and looks good when done. I'm scraping the old off some of the seams and just cleaning and applying fresh on some depending on the existing condition.
Method: Scrape using sharpened plexiglass (optional), clean with denatured alcohol, mask with blue masking tape, apply new sealant (I bought a pneumatic caulk gun $25, and worth it), smooth using FixtureDisplays 3-IN-1 Caulk Tool, remove tape as soon as possible (before the sealant skins over). Two people works best. One applies material, second comes right behind and smoothes, first person pulls tape behind the smoother.
Sorry for bloviating, hope it helps someone. 83trekker wrote:
Sikaflex 221 for vertical and around windows and doors worked good for me.
A very good sealant!- Sikaflex 221 for vertical and around windows and doors worked good for me. This is what my local rv store sells.
cpaulsen wrote:
Both are good I like the Dicor no reason just works good
Dicor no-sag or Proflex for vertical surfaces.- Dicor no-sag or Proflex for vertical surfaces.
SDM wrote:
Have a couple of places to redo. What is best caulk to use?
What places? I would stick with a good polyurethane for everything but your EPDM roof (if that's what your have).- Dicor. Lap seal for horizontal surfaces.
