Forum Discussion
Gdetrailer
Apr 27, 2018Explorer III
lordnorth wrote:
Thanks guys. Appreciate the link to the filon... but I am looking for the interior of the door, not the exterior.
As for reusing the existing insulation... that is already bonded to the FRP that is used for the interior of the door (that is cracked badly). You can't remove the FRP without removing the insulation, unless you tried to cut it off - which I can't imagine would go well.
And you can't just put a new piece over it since it would be too thick to fit within the door framing.
I'm looking at two options to bond it at this point... either a Contact Cement or an FRP approved adhesive like DAP's Dynagrip Heavy Duty Max (has to be the MAX because the regular heavy duty isn't compatible with FRP...)
I will update as to my progress.
You give up to easy.
RV Filon is .045" thick or about 3/64" thick.
FRP at Home depot is .090" thick or 3/32" thick.
Your inside of the door IS covered in Filon, yes?
You ARE wanting to REPLACE the Filon on the inside, yes?
You will most likely need to grind or sand (belt sander with coarse grit) a SLIGHT amount of the OLD FRP from the door EDGES.
Should not have to remove the existing surface, just taper down the EDGES of the door in order to fit the FRP under the metal edging.
YES, you WILL have to remove the metal edging in order to do this properly.
Your door latch/lock AND WINDOW WILL accommodate the SLIGHT increase of the depth of the door.
To recap, you do not have to be precise with the door depth other than the EDGES were the door trim covers the inside FRP surface.
It would be optional to grind or belt sand all of the old FRP off.
This isn't brain surgery so you do not need exact dimensions.
You WILL NOT find ANY FRP with insulation preglued, product is not made that way and would not work in your application.
Your door WILL have a WOODEN FRAME WORK hidden under the metal trim strip. The current insulation IS GLUED to not only the inside panel but the OUTSIDE PANEL and is also glued to the WOODEN FRAMEWORK of the door.
Honestly, I suspect that you have bigger troubles, that inside FRP cracking is possibly a sign that the wooden door frame is compromised and is sagging due to water damage..
You may end up having to build a new door from scratch.
For the record, Filon IS a "brand name" for FRP (Fiberglass Reinforced Panels)for those that don't realize it.
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