[TR] Fwd: sandblasting

Fri Apr 24 15:55:03 MDT 2020

I know that there are many TR list messages that don’t get into my mailbox, either. I usually receive the automated message about “many bounced messages”  once every two weeks or more often. I think it is at the Charter.net level rather than at the Outlook level. I enjoyed seeing the sandblasting discussion.

Alex Thomson

From: Triumphs [mailto:triumphs-bounces at autox.team.net] On Behalf Of Rye Livingston
Sent: Friday, April 24, 2020 4:53 PM
To: triumphs
Subject: [TR] Fwd: sandblasting

I sent this at 8:38 am, but it never came back around to me, so I don't know if it went out to the list or not.  Sorry if it did.  This is the media my nephew used on my trailer.

Rye

Begin forwarded message:

From: Rye Livingston <ryel at mac.com>
Date: 4/24/2020
To: dave <dave at ranteer.com>
Cc: 'Triumphs' <triumphs at autox.team.net>
Subject: Re: [TR] sandblasting

OK, it's - COAL SLAG BLAST MEDIA

https://www.agsco.com/coal-slag/

On April 24, 2020 at 8:04 AM, dave <dave at ranteer.com> wrote:

That black media he used was likely ground up lava.  I have used that and its not as aggressive as sand. 

From: Triumphs <triumphs-bounces at autox.team.net> On Behalf Of Rye Livingston
Sent: Friday, April 24, 2020 9:25 AM
To: DAVE HOGYE <dlhogye at comcast.net>
Cc: Triumphs (triumphs at autox.team.net) <triumphs at autox.team.net>
Subject: Re: [TR] sandblasting

My nephew started his own company of mobile power cleaning.  He bought this serious diesel powered professional duel axle trailer rig in Texas, and he could power clean with all kinds of media depending on the application, and he also had hot water blasting.  He did all kinds of jobs, from vintage cars, boats for the Coast Guard, to BART stations in San Francisco for both graffiti to human waste.  And if that wasn't gross enough, he said one of the worst was a Chinese restaurant that got sited and fined every day for grease oozing out of the cinder black and concrete enclosure for their dumpster.  One of his easiest jobs was my 8' long utility trailer.

In all those situations, a mobile service like his, they will capture and clean up the media and waste, big vacuum system. For that Chinese restaurant he put out dams to channel the water and goo and were vacuuming up all that grease and hot water, very gross.  

At my house he used an inert material, but it was not sand.  It was some sort of black material that looked like shards of coal.  I've texted him to find out what it was.

As was mentioned, for the cars he blasted, he had a couple of "learning" cars that were not vintage.  The trick was to learn not to let the hood, or any long body panel, get hot and warp.  So check for references to make sure who you hire has that experience.  After he learned he did several cars including BMWs and vintage 911s and 356 Porsches.

When he did this work, he had a full helmet respirator setup, coveralls, gloves and boots.  No media got where he didn't want it, but he was a hot sweaty mess when he took that helmet off.

I live in a cul-de-sac and he did the blasting down there, and there was just a little bit of media that was under the trailer that didn't get cleaned up, so again, a mobile service has a process to not leave all that behind.

He also had a "rust inhibitor" he sprayed on the bare metal so it didn't get a quick flash rust overnight.  Google that for details. I was able to paint over that no problem.  I bought a gallon of black Rust-Oleum paint and repainted it myself and it's like a new trailer.

Good luck,

Rye
PH: 530-FIND-RYE

On April 23, 2020 at 9:04 PM, DAVE HOGYE <dlhogye at comcast.net> wrote:

Back in '08-'09, I had my TR3 body tub and frame blasted at a local powder coating company.  $300 each.  They blasted every square inch with crushed garnet.  The tub was stripped of every bolt-on part.  In two different visits, I set up both items on my makeshift engine stand rotisserie, with custom attachments, to make it a lot easier for them and the best outcome.  Worth every penny and more.

Skip this part if you can and have a company do this work.  You might even consider a mobile unit come to you.  Different media can be used depending on paint or rust.  Special care has to be taken on body parts, not to warp them, but if the person has a little finesse, any harm can be avoided.

The important part of good blasting is high CFM from the compressor.  If you don't have enough CFM, you'll be working way too hard for way too long. 

Dave H.

On April 23, 2020 at 8:25 PM Greg Lemon <grglmn at gmail.com> wrote:

I stripped a TR4 years ago over the course of I don't remember how many evenings after work, using several gallons of paint stripper bought at closeout tool store, saying never again and wishing I had a sandblaster.  

Be careful what you wish for I guess.

Greg Lemon

TR250

On Thu, Apr 23, 2020, 9:08 PM Jeff Scarbrough < fishplate at gmail.com> wrote:

On Thu, Apr 23, 2020 at 8:53 PM Michael Porter < mdporter at dfn.com> wrote:

Which reminds me of J.E. Gordon's (The New Science of Strong Materials) remark about production welding:  "Welding is like Hell--fun for the first three or four hours."

There was a time when I couldn't wait to learn how to run the cotton picker at work.  It got old kind of quick...But it still beat a day in the office in front of the computer.

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