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Go Back   Madabout Kitcars Forum > Mad Build Area > Vintage and Classic Roadster Kit Car Builds

Vintage and Classic Roadster Kit Car Builds For Vintage and Classic era kit cars. Post your build reports, problems and progress here

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  #61  
Old 19th April 2021, 15:08
Mitchelkitman Mitchelkitman is offline
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Quote:
Originally Posted by MartinClan View Post
I am now on the hunt for some decent plywood to make the doors proper from. Not so easy as one might think nowadays...

Cheers, Robin
Indeed - I bought some ply from B&Q - meant to be boil and waterproof exterior ply. I treated it to a couple of coats of Sadolin and put it on my trailer. Within 2 days (no rain, just dew fall) it was bent like a banana! I returned it, and was immediately told "we cut it, so you can't return it". I requested to speak to the Manager, and he immediately granted a refund. I think you'll need a specialist supplier, or How about making the doors using GRP?
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  #62  
Old 19th April 2021, 18:17
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Grey V8 Pete Grey V8 Pete is offline
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Why not try marine ply from a boatbuilders? If it will stand a sea environment it should be ok. Peter.
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  #63  
Old 19th April 2021, 21:05
molleur molleur is offline
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Have you priced ANY plywood of late?
really expensive these days.
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  #64  
Old 20th April 2021, 07:20
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MartinClan MartinClan is offline
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Originally Posted by molleur View Post
Have you priced ANY plywood of late?
really expensive these days.
Yes, it's expensive. The problem I have found is that even some of the expensive stuff is rubbish. I don't mind the cost if the quality is there but the stuff from the usual builders merchants suppliers is, without exception, rubbish. So that means mail order which almost doubles the cost. Grrr

Cheers, Robin
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  #65  
Old 20th April 2021, 08:50
Lucky@LeMans Lucky@LeMans is offline
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Have you thought about making an ash frame and skinning with aluminium ? The coach builders method from years ago. The trouble with ply is that it will twist and distort if its hung on its side as a door.
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  #66  
Old 20th April 2021, 09:31
kon kon is offline
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Or how about a hybrid? Exterior grade ply as the frame, with fist-sized holes added for lightness, and as a reinforcing shape. Then coat with epoxy to seal it, and cover with fiberglass, leaving one side on a flat surface to make the exterior smooth and flat, with the reinforcing shape visible on the inside.
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  #67  
Old 20th April 2021, 10:10
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MartinClan MartinClan is offline
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Thanks for all the suggestions guys. The original doors were 25mm ply skinned with aluminium and never warped - so I was following that method. The trick I hope is to get some good quality ply and then seal it against moisture ingress. My favourite so far is something called duraply which is an engineered ply made from Poplar.

I will be cutting out the centre though so as to allow for a small door pocket and lighten the whole thing. I have just completed building a camper van from scratch so have all the good tools for that kind of thing.

Cheers, Robin
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