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Posted

Whenever I buy 2-part polyester putty, it always goes 'bad' before I can use it.  I am looking for the smallest amount of this stuff I can buy.  I think I saw  an ad for such a small package by 'Bondo'.   Any suggestions?  Thanks

Posted

Make sure it says  PROFESSIONAL GLAZING AND SPOT PUTTY, #801 . They make a single-part lacquer putty too (#907). Don't get confused.

And yes, it comes with a little tube of hardener in the package.B)

Posted

Make sure it says  PROFESSIONAL GLAZING AND SPOT PUTTY, #801 .

I still chuckle every time I see "Bondo" and "professional" on the same package.  Through no fault of theirs, people have come up with, shall we say, "groundbreaking" uses for their products.  The putty pictured, however, is good stuff.

Posted

I still chuckle every time I see "Bondo" and "professional" on the same package.  Through no fault of theirs, people have come up with, shall we say, "groundbreaking" uses for their products.  The putty pictured, however, is good stuff.

Yeah, I've seen some pretty unbelievable "professional" work done with just about every product you can imagine. Some of the work I see that folks have actually been paid for makes me wonder if the clients were as blind or stupid as the folks who did the work.

Every day I'm amazed by what passes for "professional".<_<

Posted (edited)

I cannot get this bondo stuff in Canada so I can't say anything about it. Lately I have been using Tamiya 2 part putty with good results.

poly-putty.jpg

Edited by Mike Chernecki
Posted (edited)

The secret is the "two part" part, whether Bondo or Tamiya. "Two part" putty means you have to mix the resin with the hardener (hence the "two part" name)... and that means the putty sets like epoxy does... via a chemical reaction between the two parts and not by air drying, as "one part" putties that you squeeze out of a tube like toothpaste do. That's why "model putty" (the one part kind) shrinks as it dries. The part that's liquid evaporates, literally goes away, leaving the solid part. Obviously, if a part of the putty appllied evaporates away, the volume of the applied putty will shrink–and crack, if applied too thick–as it dries. Two-part putties don't shrink because they don't air dry... the "set" chemically. A much better way to go.

I love that Bondo stuff pictured. Just the right size tube for model building, and the little tube of hardener is even available as a stand-alone product if you run out of it before you run out of the resin part (the stuff in the big tube).

Edited by Harry P.

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