[AT] Classic Blast

[charlie hill]

Bruce,

You've asked some really good questions there.  Maybe we can get an answer 
from Jim.  I saw him demonstrate his product on some car restoration program 
and I can tell you that they were using presure pots with commercial grade 
equipment.  That would translate into fairly high presure and volume.

He said that he found out about mixing in the walnut shells by accident.  He 
said that he was blasting with aluminum oxide and re-using his media.  He 
said that pieces of wooden pallets he had on the floor were accidentially 
contaminating his media and that he realized that the wood contaminants were 
having a positive effect on his work.  That is when he decided to mix in the 
walnut shells.

That's about all I remember from the short piece on TV.

Charlie
----- Original Message ----- 
From: <ROBBRUT at aol.com>
To: <at at lists.antique-tractor.com>
Sent: Monday, January 10, 2005 7:52 PM
Subject: Re: [AT] Classic Blast


> Jim-
> I have several questions about your product:
> (1) Since it is a "carefully controlled blend of two products", but one 
> of
> them (aluminum oxide) is much less frangible (therefore longer lasting) 
> than
> the other (walnut shells), it seems that the original blend ratio must 
> change
> as the media is re-used, eh?
> (2) What is the recommended nozzle pressure/distance to use for common
> materials?
> (3) You mention that the blasted surface is protected from rust after 
> using
> this process. It is because of the walnut oil deposited on the surface?
> (4) If yes, what is used to remove the residue prior to painting?
> (5) What is the preferred method of application, siphon feed or pressure 
> pot?
> Thanks
> -Bruce Thompson
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