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Help Needed

Skydivermel

Full Member
Joined
May 1, 2017
Posts
64
Location
Essex
First Name
Melvyn
All,

I've been trying to cast some snakeskin. The main issue is that using CA or Elmers turns the skin dark. See photos. The other issue is air bubbles. Even thou I'm pressure potting them at 50psi.

Any ideas?20200531_114801.jpg20200531_114746.jpg20200531_114730.jpg
 

Skydivermel

Full Member
Joined
May 1, 2017
Posts
64
Location
Essex
First Name
Melvyn
Are you sure that the discolouration comes from the glue and not the resin?

It's deffo the glue. The moment I put CA on to the skin (either front of back side) it turns dark. When using elmers on the backside it still turns dark.

I did think about using wallpaper paste or as someone else suggested double sided tape.

It's driving me mad.
 

Phil Dart

Moderator
Executive Member
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Nov 28, 2014
Posts
5,455
Location
Colebrooke, Devon
First Name
Phil
That implies then, that it's due to absorption. You could try sizing the back first, but actually I think that Paul has already solved the problem - you need to use double sided tape instead of glue. Next time you cast anything, put a wee offcut of the snakeskin in there somewhere where it won't matter to the blank, to see if the resin affects it without any glue.
 

Skydivermel

Full Member
Joined
May 1, 2017
Posts
64
Location
Essex
First Name
Melvyn
I seem to have solved the problem with the snakeskin.

I glued it to the tubes using pritt stick :thumbs: left it an hours to dry. I then coated the skins with modge podge again left for an hour to dry.

Mixed up a batch of resin and into the pot at 40psi. Result is perfectly clear resin and no discolouration of the skins. :thumbs:

Thanks to all for your input.
 
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