Change in coroplast material?

[ajg617]

I have a couple of holes to patch where the GD tech cut to replace two spring hangers. In reading some forums, there is a lot of positive comments on Scrim tape. However, GD changed the coroplast in 2022. Mine is not a solid plastic but a fuzzy type of material that soaks up moisture. I've tried tape and it simply won't stick. Is there a new recommended method of repair for the underbelly?

[pappcam]

The tech should have resealed the coroplast, no? The trailer should have been given back to you the way it was to start.

[ajg617]

The tech should have resealed the coroplast, no? The trailer should have been given back to you the way it was to start.

Well, no such luck. He stuffed wet rags up to kill the welding sparks. Still don't know what to repair it with since the change in material.

[TucsonJim]

Well, no such luck. He stuffed wet rags up to kill the welding sparks. Still don't know what to repair it with since the change in material.

Just a thought. You could patch it by using some zip ties to hold the patch in place. Another idea would be to use some pop-rivets.

Jim

[Jlawles2]

One of the methods used was to put a flat bar over the affected area then using fender washers and screws to attach the 2 sections together. This may lead to a larger than expected patch to avoid tanks and other critical items.

If you get lucky, the patch will be on a cross member.

[ajg617]

GD corporate repair says fill it with expanding foam. Seems like too large a hole for that. They both look like below.

[Country Campers]

I would probably fill it with foam if it were mine. You could also add a small plate of aluminum using the 2 screws on the frame in the picture.

Brian

[steveluannj]

I have also had to patch holes/slots in mine. I put a piece of wood up in there to cover the hole, then used screws and fender washers up through the cover to secure to the material. then you can use foam to do the rest. I also tried tape, the the new cover material is too rough to let anything stick. Given where yours is, I also think sandwiching a metal plate under the 2 screws on the frame, then screws or pop rivets through with fender washers would work too.

[ajg617]

I have also had to patch holes/slots in mine. I put a piece of wood up in there to cover the hole, then used screws and fender washers up through the cover to secure to the material. then you can use foam to do the rest. I also tried tape, the the new cover material is too rough to let anything stick. Given where yours is, I also think sandwiching a metal plate under the 2 screws on the frame, then screws or pop rivets through with fender washers would work too.

The official GD repair procedure is to fill the hole with expanding foam. But when we were in Yellowstone last year, I went to the local building center and purchased this - https://westmart.doitbest.com/shop/p...ack?SKU=499924. When out at the factory last week, I was stunned to see it still in place after 6,000 miles and a cold winter. All I did was soak the 'coroplast' with alcohol, let it dry and applied. It's still there. But I like your idea of putting a piece of wood there as a backing.