What you are referring to is made by US Chemicals and Plastics (USC). It is
called 'Autobody Icing' and is a pourable, brushable polyester finishing
putty. It comes in a 30 oz. can with a 1 oz. tube of 'raspberry cream'
hardener. I bought some last year after reading about it in Ed Miller's
finishing articles in HPR, and really liked using it. It dries in 15
minutes, sands extremely easily and leaves a great finish surface. The down
side was it needs a 50/1 mix ratio with the hardener and was very sensitive
to a bad mix ratio. It also starts to set in about 4-5 minutes which was a
bit too fast to brush on the areas I needed it for, especially when filling
I tried the 3M version recently and like it a little better. It doesn't set
up as fast and is much less sensitive to the mix ratio being off a little.
Its 3M part number 051131-05821, 'Piranha Putty'. You can get both products
at automotive paint stores. I got both at my local Sherwin Williams
Automotive Paint store.
> Since I found that priming my fiberglassed rocket really shows off the
> pinholes, I now need something to fill them with. I remember in a past HPR
> article was a recommendation to use something called ICING. Personally,
> never seen the stuff in any of the stores I frequent. Any suggestions on
> what type of store to find this in? What is it's "designed for" purpose?
> Anything else that works well?
> Kevin Rezac