How to fill little holes in resin casts?

[Fire Marshal Bill]

I primed a resin head today, getting it ready to paint. I noticed a couple small places where bubbles had formed during casting. They are on the face so i want to take care of them before painting. What is standard practice to fix this. I'm assuming i can simply fill them with a little sculpey..... but then what? Would baking it in the oven cause the resin to melt? Thanks for any advice.

[GaryPlaysWithDolls]

crazy glue works nicely. Milliput. I've never tried to use sculpey. could you use the kind you don't have to bake? Crazy glue has always worked for me.

[Fire Marshal Bill]

Don't have any of the air dry clay. I may try the Crazy Glue route. Thanks!

[stuart]

I've had good luck with Bondo glazing compound. It comes in a tube, dries hard, and is sandable.

[livnxxxl]

I use Milliput.

[babycyclops]

A time-saver if you don't want to mix up some Milliput is Super glue (crazy glue) mixed with a little talcum powder. It's ideal for filling small holes.

[livnxxxl]

A time-saver if you don't want to mix up some Milliput is Super glue (crazy glue) mixed with a little talcum powder. It's ideal for filling small holes.

Thank you for the tip. I will give it a try.

[Tothiro]

milliputt works, any A/B mix epoxy would... you'd want to avoid sculpey because baking will damage the resin. To what degree depends on what the specific resin mix's properties are, because some can take heat up to 400 degrees or so... but generally it causes the resin to break down and leach out chemicals, warp and expand/distort... not a good scene.
You could probably boil the part to keep the temp low (don't use food pots) but you're more likely to have problems with paint adhesion and long term wear on that, also the baking changes the volume of the sculpey with expansion/contraction ... sothe surface will never be the same exactly and you'd have to sand it before painting. It's basically just a pain.

[thunderbolt]

^^ Really? I've never had issues with baking resin heads if I add some sculpy to them.

[gaga4toyz]

Bondo glazing compound or spot putty. I spread it on with a card and then wet sand with 220 grit and then 400 grit sandpaper.

[megowgsh]

You can also dab on some super glue/krazy glue and sprinkle very fine sand over the hole. The sand will fill the hole but you will need to sand it down a little bit to make it smooth.

[REMOVED]

if they are really shallow holes, I prime first, then use spackling compound (cheap) as it dries quickly and prime again. It is is a hole on the end of the nose or a bigger air bubble on the edge of something like neck or ear, I use aves or some other epoxy sculpting compound as it's stronger. Also, you can use modeling paste from art store. Works like spackling paste but is more durable and takes a bit longer to dry.

super glue can work on really tiny air bubbles but some glues has problems curing if you use a lot of it.

[Fire Marshal Bill]

Thanks for all the valuable input . The holes i was trying to fill were very very small. I stopped by Hobby USA this afternoon and ended up with this. It was only $3 and should last me a good long while. This ought to work, yes?

[TrueDave]

I love that I can get it in white now. Used to I only had Green Squad putty.

Or maybe I thought that was teh brand name??

Much better tahn Testors grey putty.

[ctc]

Hmmmm....

Yeah, the white/grey/green conotur putty is good for holes and such. It dries kind of brittle, so you can't use it for rebuilding stuff that sticks out. It's also glue-solluable, so you can use the brush-on liquid glue to smooth it out a bit. (Give it plenty of time to dry before sanding though.)

Don C.