[DeTomaso] thick metal spray on Fontana block?? Help?

[Charles Engles]

Dear Ed,


          This might be pertinent.  I had an aluminum intake manifold coated with aluminized ceramic just like header coating.  I wanted the coating off to modify and polish the manifold.  I found out that the company that puts it on can take it off even though it is supposed to be bonded to the metal to the tune of 10,000 psi (IIRC).   I asked them how they do it and apparently a 400 degree or so oven is the key step.  I turned it over to them and got a perfectly serviceable aluminum intake manifold back.

          Perhaps, there is a Jet Hot facility in your area and they could advise you?  I am pretty sure that they have a tech line.


                    Warmest regards,  Chuck Engles





-----Original Message-----
From: DeTomaso [mailto:detomaso-bounces at poca.com] On Behalf Of Ed Mendez
Sent: Friday, September 11, 2015 3:55 PM
To: detomaso at poca.com; San Diego Panteras
Subject: [DeTomaso] thick metal spray on Fontana block?? Help?

Anyone have any idea how to get this metal spray coating off my Fontana block? It is some sort of metal spray coating to fool people into thinking it is an iron block when in fact it is an aluminum block. The coating is magnetic.

The machinist in Downey, CA, says after hot tanking this is what it now looks like, the power coater won’t touch it due to liability, a sand blaster won’t touch it for the same reasons. I was thinking walnut media blasting?

How do I get this crap off? Grinding? but that will screw up the finish…

Any help would be greatly appreciated.

Ed

Ps. If you don’t get a picture I will send to you directly, something up with Mac mail and our mailman server.