Squadron White Putty????

[fullbloodchop01]

ive been using alot of putty for my ITR's becasue everytime i putty up something i wait a day or s for it to dry, then when i go back to sand it down there are always littles pockets like bubbles in the putty so i have to re-putty it. this is getting me really madd because im am trying to get alot done but this keps setting me back alot. anyone know what i csan do to avoid this??????????

[kicker1_solo]

I have the same putty and sometimes I get a couple small bubbles, I just apply another layer of putty and then sand again.

[daggerlee]

Those pockets of air are where the solvent gas is evaporating from the putty. Such, that putty is more suited for filling use than building use. You need something that won't create pockets of gas, such as epoxy putty.

[hirofkd]

Originally posted by fullbloodchop01
ive been using alot of putty for my ITR's becasue everytime i putty up something i wait a day or s for it to dry, then when i go back to sand it down there are always littles pockets like bubbles in the putty so i have to re-putty it. this is getting me really madd because im am trying to get alot done but this keps setting me back alot. anyone know what i csan do to avoid this??????????

That's the nature of those hobby putty. You can use polyester putty, which cures in 15-30 min, so putty-sand-putty-sand process can be done shorter. Or, you can use epoxy putty, and get the basic shape done, and fill some pin holes.
Either way, you still have to fill the pin holes. I'd use polyester putty for that kind of job, because of it's fast curing time.

[ZoomZoomMX-5]

Any of the air-drying putties really aren't suited well to modeling. They shrink, take a long time to dry, and aren't worth the hassle. You can sand them smooth, paint over them, and be happy, until 6 months later when you look at your model and see exactly where your putty is from the shrinkage factor.

Tamiya makes a good polyester putty, and if you can afford it try to find some Evercoat Eurosoft or similar (they have several variations) polyester glazing and spot putty. Not like the crappy Bondo stuff, it has to be a two-part polyester that cures by chemical reaction.

The Evercoat line of putties is available in automotive paint stores, the places that sell car paint to body shops. It's great stuff, I mix it in tiny amounts, and use it exclusively unless I need more time to shape, then I use epoxy putty, like Milliput or Tamiya brand.

[935k3]

One thing that works well for small pinholes and cracks in putty is to go ahead and prime the car then spray some of the primer in the lid and let the thinners evaporate(5 minutes or so) then brush the thickened primer in to the hole or crack. This works very well with Krylon Primer. Let it dry and sand even.

[Integra14]

935... could u show me how to do that in more detail