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anyone use flexseal for carpet backing?

17K views 33 replies 19 participants last post by  micmem  
#1 ·
I just applied 3 of the liquid cans to the backs of my cockpit carpeting which is almost past it. this stuff wasn't cheap , but if I can get another season , the 90 is better than the 700! stuff goes on like tar , will see how it sets up.
 
#8 ·
I used Plastidip spray, which worked well enough, but took more cans get the coverage than I was expecting. I used white so it would (hopefully) be non-marring or messy if it began to give out.

I think after I did it there was an ever better idea, the white elastomeric rubber used on roofs.



I know, right? You're paying for it, right? I mean it's a boat, doing everything right the first season you own is kind of expensive.
 
#3 ·
yeah I know, I tried the rubberized undercoating with some success as some have on this forum , but the coverage wasn't good enough. the carpet itself isn't horrible, so since the majority of my maintenance funds will go to new batteries this year, was hoping to sqeak out another season. its drying now until tomorrow.. hopefully does the trick for a while
 
#12 ·
Did you have to remove the old sections of the black or did you pain over top? It seems like it would make sense to remove the areas first to get a good bond. So the second question would be, what is the best way to remove the old black backing without damaging anything?

Thanks for the input anyone can share. I need to make this happen soon, or put the some new type of deck cover down - just another unplanned expense. The Florida sun seems to melt the older backing of this carpet down to the deck in some spots.

Good day to all,
L'attitude Adjustment, Palm Harbor FL - 28.06°N 82.78°W
 
#6 ·
I did mine a couple years ago with Plastidip. Hardest part was masking the snaps and binding and scraping off the bad areas of backing
. Still holding up. The carpet backing wasn't terrible, but was starting to stick to the deck. This will probably be the last season for my carpet as I want to switch to PVC.
 
#11 ·
I've used the Plasti-dip spray on mine also. been 3 years now and still holding up well. As highslice mentioned above, the hardest part was being careful around the snaps and binding but it wasn't bad. I'd recommend it .
 
#13 ·
I just took an old scrub brush and sorta scrubbed the loose black backing off (dry). The loose stuff came off easily and then I just shook the carpet to get all the particles off, then brushed it again. Once I determined all the loose stuff was off, I just sprayed the Plasti-Dip on, holding the can real close to the back. I just took a piece of cardboard and placed it over the binding on the edges, moving it along as I sprayed just so it wouldn't get on the binding. Real easy and it came out great.
 
#14 ·
Thanks for the quick reply Garry!

I need to get an idea of how much to purchase for my 380. Guess if I purchase it locally, I may be able to return the extra cans? Sop nothing else to prep the surface, just spray it on after you have removed all the old black particles?

Sounds like a fairly straight-forward process, one that is kind of overdue for us as I am a stickler for keeping my deck clean and that stuff shows up everywhere.

Thanks much and have a nice weekend coming up.

V
 
#15 ·
I went a different route, we used cabinet liner! Adhesive spray to hold it on. It's early in season, but it looks solid and was not expensive (at least at wally mart).
 
#19 ·
I used Flex Seal last year in the summer in the white color for all 3 carpet on the 34 Sundanser. I used a gallon $100.00 at Lowes. It's still holding fine like previous post I scrub the loose black stuff of the the back. I used a squeegee and laid it thick 2 coats. I am down in south Florida so far so good holding grate.
 
#20 ·
Looks like I’ll be doing this soon. My boat had homemade carpets in it, and the Berber was starting to run. I actually traded a guy from the Facebook group for my boat model a bottle of bourbon for his used carpet. Looks flawless from the top but the backing is flaking off.

he put seadek on

figured it was worth gambling a bottle of bourbon and a few cans of flex seal to possibly have nice oem results
 
#28 ·
It worked well initially to encapsulate the crumbling black rubber backing on the carpets.

It had two downsides, though. The first was immediate -- the carpet functionally shrinks dimensionally and some of the snaps are impossible to get snapped down. This was less problematic than it sounds like, since I was able to get some down and the added weight of the flex seal coating keeps the carpets down.

The second downside is why I wouldn't use it again as a "long term" fix -- it started peeling after about 4-5 years, and the peeling was a serious mess. The peeling became evident 3 years ago in the fall when I took the carpets home for the winter. My marina/storage guy even commented on it in the following spring, despite me doing my best to hose/vacuum up as much as possible.

Since I really struggle to spend the money and jump through the hoops to replace the carpets (they look OK on top, I scrub them with laundry detergent and a brush chucked in a drill annually) I did a little triage. I peeled off as much of the flex seal as I could (total chore, about 8 hours in the garage with a wire brush and a shop vac) and then used a spray silicone rubber roof seal (Henry 880 Tropi-Cool Stop Leak 100% Silicone Spray Sealer) as a new backing.

It's held up after 1.5 seasons, but I think I'm finally going to have to deal with the carpets.

Flex Seal is a cheap solution, but it will eventually crap out.
 
#30 ·
You're not wrong. But on the other hand, the costs (and sometimes captain participation) required in a carpet replacement (like self-fitting snaps, templating, etc) has just been not worth the squeeze relative to the very low sense that we "need" to replace the carpeting.

The Admiral has a lot of aesthetic opinions but she has told me multiple times that she doesn't have many opinions about the carpets. They cover the decking and are so ambiguously colored that their condition is ambiguous. Nobody else says anything either (always the right answer on someone else's boat and drinking their liquor...).

But I'm just about there -- the "local" marine canvas/upholstery shop that services our lake is now doing GatorStep foam decking and its probably the direction I would go. And really, most of the foot dragging is kind of tied to Not Coastal Florida syndrome -- the number of local marine vendors you can get to do anything is tiny and impossible to schedule. And my appetite for carpet/flooring as a DIY project is pretty low.