Two Part Pour Marine Polyurethane Foam - Fiberglass RV
Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test Free 7 Day Trial ×

Thread Tools Search this Thread Display Modes
Old 02-18-2023, 08:36 AM   #1
Senior Member
Name: Steven
Trailer: Trillium
Posts: 236
Two Part Pour Marine Polyurethane Foam

I am restoring our 1978 Trillium 1300 and would like to consider filling voids and perhaps fabricating new furniture parts using pour foam.
I'm fairly certain that I will avoid the spray can foam, as the cell structure seems inconsistent.
In most cases I plan to cover the sculpted foam structures with polyester resin and fiberglass mat, followed with a final gel coat layer.
I would appreciate hearing about experiences, good and bad.
Steve Hague is offline   Reply With Quote
Old 02-18-2023, 09:40 AM   #2
Senior Member
Trailer: 13 ft Boler
Posts: 1,180
I like the idea although it will be a lot a work and in the end the foam probably wont be needed plus it takes up possible storage space.
The foam isnt porus but is full of holes (parts of bubbles) and I think will have to be filled with something that doesn't react with it, I think the hardening resin will.
Then the bodywork, laying on the fglass smoothing it, then bodyfiller to finalize shape, then a sealer and finally the gelcoat.
If you do take this on I suggest a small item to start with.
I used the method years ago to create a trunk for a motorcycle. It was only maybe 2 cubic ft but I remember it being a ton a work.
But, for 1 off custom shape items in fglass you don't have much for options.
Good luck and please post up results.
I'd rather do it myself, done right or not. Isn't that what a hobby is all about?
FRED SMAILES is offline   Reply With Quote
Old 02-18-2023, 09:40 AM   #3
Senior Member
Jon Vermilye's Avatar
Name: Jon
Trailer: Escape 21C
New York
Posts: 2,395
While polyester resin should not melt urethane foam, I'd still test the combinations before actual use. Polyester resin will eat many types of foam.
Jon Vermilye is offline   Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Two-Part Polyurethane for Outside and Inside? Frank R Problem Solving | Owners Helping Owners 2 05-11-2022 12:07 PM
paper bag/polyurethane flooring samandallison Problem Solving | Owners Helping Owners 14 01-02-2018 03:44 PM
Epoxy VS Polyurethane for giving a Smooth Finish to Epoxied Fiberglass Veil LittleCleo Problem Solving | Owners Helping Owners 0 06-13-2017 06:33 AM
Ice box part time, electric fridge part time? zoshia Problem Solving | Owners Helping Owners 8 05-17-2012 04:21 PM
Still trying to put that antifreeze in my camper. Can I pour it into Karalyn Problem Solving | Owners Helping Owners 3 10-19-2006 08:19 PM

» Upcoming Events
No events scheduled in
the next 465 days.
» Featured Campgrounds

Reviews provided by

All times are GMT -6. The time now is 08:35 PM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.