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materials other than ply for hatch/curved panels?

PostPosted: Mon Sep 25, 2017 8:56 am
by mboardman
Id like to hear about sourcing and bending 4x8 or similar sized materials for the curved areas like the galley hatch, etc. Anyone use a plastic or synthetic instead of wood? Then covering it with alum sheeting as normal?

I live in KC and having trouble finding sources for the common plys people here seem to use...baltic birch ply or luan or purebond stuff. Im leery of ordering something without seeing it.

Any ideas?

Re: materials other than ply for hatch/curved panels?

PostPosted: Mon Sep 25, 2017 10:43 am
by tony.latham
I live in KC and having trouble finding sources for the common plys...


Try calling a couple of cabinet shops. Tell them your problem. Ask if they can order 1/8" Baltic birch.

Tony

Re: materials other than ply for hatch/curved panels?

PostPosted: Mon Sep 25, 2017 10:47 am
by greygoos
I have used FRP which is about 35.00 a sheet at HD and Lowes. It bends easy takes adhesive, it is waterproof, etc. I used it on 2 trailers. After it was applied I covered it in aluminum, that was the finish I was going for

Re: materials other than ply for hatch/curved panels?

PostPosted: Sun Oct 01, 2017 4:52 pm
by mallymal
What about aluminium composite, like they use for signage (brand names in the uk include a Dibond).

It's as thin as very thin ply, already has an aluminium skin, and will never rot.

Probably harder to bend round, but could be worth a think!

(But take no notice of me... I e been lurking for about 10 years and still haven't got round to building anything! :oops: )

Re: materials other than ply for hatch/curved panels?

PostPosted: Sun Oct 01, 2017 5:14 pm
by mboardman
What you're describing sounds exactly like what Im using for the walls and roof now in my last two teardrops, but it simply wont take the bend in the hatch. Plus, its extremely heavy for the hatch. So Im hunting for other stuff...

Re: materials other than ply for hatch/curved panels?

PostPosted: Wed Nov 15, 2017 4:33 am
by kielyjw
I know Home Depot used to carry bumpy fiberglass panels in 4 X 8 sheets. It is the same material used inside commercial freezers. It bends easily and glues well also. It sounds like what greygoos was talking about.


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Re: materials other than ply for hatch/curved panels?

PostPosted: Sat Dec 16, 2017 12:32 pm
by bobwhite215
mallymal wrote:What about aluminium composite, like they use for signage (brand names in the uk include a Dibond).

It's as thin as very thin ply, already has an aluminium skin, and will never rot.

Probably harder to bend round, but could be worth a think!

(But take no notice of me... I e been lurking for about 10 years and still haven't got round to building anything! :oops: )
That is exactly what I am using. My exterior walls, roof and galley hatch are all lined with ACM. In fact, my roof is going to be a repurposed sign.

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Re: materials other than ply for hatch/curved panels?

PostPosted: Fri Dec 22, 2017 7:56 am
by slowcowboy
I used 1 by 6s butted end for end side by side for the roof and the hatch. then I first tried frp but the fiber glassed based plastic was to brittle and busted trying to fit around my tighter than normal curves on my first teardrop. I then moved to nrp full plastic base. and covered the hole teardrop in it. 5 to 7 years later no issues with nrp. . its bathroom shower stall stuff. not as durbable and tough as frp though. stratches easy the nrp. if your curves are not to tight or a benroy or a square weekender. you can easy glue on frp and cover with aluniom trim. issue with frp is nails are tough to go though it have to drill small holes. but yea they even use frp on the newer semi bull racks roofs on brand new cattle pots to cut down on weight. so it will take a cows head jammed into it. maybe not a cow horn. but its tough sh**. and its doest sctatch like nrp full plastic does. I fully plan to never use quarter inch plywood in any tears I build roofs or hatches. its how I easly beat the hatch spring back on my first teardrop. :D
slowcowboy