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Red Oxide Dopes and Fabric glues

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Steve_r

New Member
Joined
Jan 13, 2009
Messages
2
Location
Yorkshire, UK
Hi All,

I must admit I am not a homebuilder - per say, but I do build extra large (12-25ft span!) RC models which utilise many of the same techniques and materials used in the homebuild industry. I have two questions regarding dopes and fabric coverings.

To help you understand what I am trying to achieve, I am building a model of a 1930's experimental aircraft. The Miles M39b was very much a 'homebuild' of the day, built at the back of the Company workshop by a small team of craftsmen from whatever was laying around! It (and my model) were/are built primarily from plywood interspersed with balsa and spruce, which was then fabric covered, doped and painted.

While searching through some of the Homebuild suppliers' websites I ended up with a few questions.....

1) Could someone please explain what Nitrate Red Oxide Dope is used for? Why use this over standard Nitrate Dope?

2) I need to cover a sheeted area in Diatex (1000), which will have a few coats of Standard Nitrate (semi-tautening) dope and then painted in dark camoflage colours, what is the best preparation to ply sheeted areas to stop air bubbles appearing during the midday sun?

3) Is Nitrate Dope the best choice or should I consider Butyrate. And then how many coats (thinned?) to stop the problem above?

Here's hoping someone can enlighten me!!

Thankyou,

Steve
 
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