Resin Bubbles FAQ

[Mike]

I've just been removing some resin bubbles in a couple of cast up engines from Bra.z models, and thought I'd share my technique with you.

Firstly, just quickly assess the size of the bubbles, and chuck a suitably sized drill bit into your pin vice. In this case, 0.75mm was suitable, so I drilled out the major bubbles.

Taking a piece of styrene rod of the same 0.75mm diameter, dip the end in CA (superglue), and insert it into the hole, making sure it bottoms out.

Give it a few seconds to cure, then chop it off close with your side-cutters.

This leaves you with a lot of little white stumps standing slightly proud from the surrounds.

When you're done filling, simply cut off any remaining stumps or CA residue with a sharp #11 blade in your scalpel. A quick buff with a sanding stick, and you're done. Certainly beats trying to choke them with filler

[pigsty]

Brilliant! So simple and obvious that I'm kicking myself, even though I'm sitting down!

Now, what piece of Soviet junk has engines like these ... ?

[Mike]

thanks Sean... it took me a while to think of it, but I got there in the end. The best part is that it's not even time consuming really - took me longer to take the photos & write it up than it did to do the two engines.

The other good thing is that as the styrene is a similar hardness to the resin, you don't suffer from issues when you sand it back like you would with CA alone.

As to what Soviet piece of junk those engines belong to? Go on... guess

[pigsty]

Beats me. I've even trawled the Bra.Z website and it's still not ringing bells. Must be early, though, if the shape of the pylon is right.

[Mike]

I'll put you out of your abject misery then. TU-134A - something I've been fiddling with on & off this last few weeks.

[Moofles]

Just stumbled across this, what a great idea, cheers. will be using this from now on.