 Media blasting, pros and cons ? |
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| sechszylinder |
 Apr 11 2003, 02:49 AM
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#1
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Member  Group: Members Posts: 256 Joined: 9-April 03 From: /earth/europe/germany/berlin Member No.: 545 Region Association: None 
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Hello,
i'm in progress to restore a 914/6. The car is stripped to bare metall and i found some rust here and there, but not as much as expected. Fortunately the longitudinals are as well o.k. . All four fenders are disassembled, so i do not have to worry about them. That's not the first 914 that i rebuild, but this time i'd like to make it very clean. Now here's my question: Does anybody has experience with media blasting and the pros and cons of it ? many greetings and "luftgekühlte grüsse aus berlin" Benno |
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| Jeroen |
Apr 11 2003, 04:13 AM
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#2
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914 Guru Group: Members Posts: 7,887 Joined: 24-December 02 From: The Netherlands Member No.: 3 Region Association: Europe |
Hey Benno,
If you don't do big smooth surfaces, like the hoods or the fenders (they can warp from pressure and heat), you should be fine. Take it to a place that does cars, not just an industrial blaster. cheers, Jeroen |
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| boxstr |
Apr 11 2003, 09:44 AM
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#3
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MEMBER:PACIFIC NORTHWEST REGION Group: Members Posts: 7,522 Joined: 25-December 02 From: OREGON Member No.: 12 Region Association: Pacific Northwest |
The media blaster here in Portland Oregon uses a plastic bead, I have used him for a number of different things including a 914 hood and there was no warping. I was very pleased with the outcome. One thing it doe's leave the small plastic beads in hard to get to places, comperessed air is a must.
PS: he is a car blaster only. CCLinLOO |
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| tod914 |
Apr 11 2003, 10:16 AM
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#4
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Advanced Member Group: Members Posts: 3,755 Joined: 19-January 03 From: Lincoln Park, NJ Member No.: 170 |
Cons - I took my rockers to be media blasted. The guy sandblasted instead and warped them.
Pros- He replaced them with 2 new oem outerrockers. I would be hesitant on large panels. I think your best off doing it by hand. Find a good rust nuetralizer like rust mort, not por15 which cant be painted. |
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| Mueller |
Apr 11 2003, 10:41 AM
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#5
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914 Freak! Group: Members Posts: 17,150 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None
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I sandblasted my engine compartment myself (with motor out of the car).....besides making a huge mess in the garage (IMG:style_emoticons/default/sad.gif) ....I was having to clean sand off of my motor every single time I took it out for a drive....the sand will get into cracks and seems that I didn't know existed.
A medium that is larger than sand would be a better choice, unless you methodically clean and use lots of compressed air to blow out the sand. I'd almost be tempted to put the bare chassis on a trailer and drive around for a while to "vibrate" out the hidden sand if you go that route. |
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| SirAndy |
Apr 11 2003, 10:59 AM
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#6
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Resident German Group: Admin Posts: 41,954 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
same as the above posts. it'll work great to clean up ther car, but
you need to clean it big time afterwards. use a industrial vacum cleaner and compressed air. i had tons of sand coming out of all kinds of hollow areas etc. it's a mess (IMG:style_emoticons/default/blink.gif) |
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| Mueller |
Apr 11 2003, 11:14 AM
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#7
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914 Freak! Group: Members Posts: 17,150 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None
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Andy,
What did it cost to sandblast your trunks? |
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| SirAndy |
Apr 11 2003, 11:16 AM
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#8
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Resident German Group: Admin Posts: 41,954 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
QUOTE(Mueller @ Apr 11 2003, 09:14 AM) What did it cost to sandblast your trunks? i think it was $400. Got ripped off because the same guy had charged Scott $400 for a complete car earlier. Ask Brad for more details, i think he knows the guy. Andy |
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| GWN7 |
Apr 11 2003, 12:15 PM
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#9
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King of Road Trips Group: Members Posts: 6,280 Joined: 31-December 02 From: Winnipeg, MB, Canada Member No.: 56 Region Association: Northstar Region |
Make sure who ever does it for you has experience in doing car parts. I'm looking for a new rad cradle for my 68 Impala because of this. Wrong pressure and blasting medium can make a mess out of the nicest parts. (IMG:style_emoticons/default/wacko.gif)
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| mr914 |
Apr 11 2003, 12:17 PM
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#10
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914 Hillbilly Group: Members Posts: 576 Joined: 11-January 03 From: Lincoln NE Member No.: 131 Region Association: None |
I'm thinking about using either talc or walnut shells on my restoration.
The words of wisdom that I got from an industrial blaster is to do a little at a time.... |
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| Brad Roberts |
Apr 11 2003, 12:18 PM
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#11
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914 Freak! Group: Members Posts: 19,148 Joined: 23-December 02 Member No.: 8 Region Association: None |
Mueller, the place is right off of 880 and 101. They have been blasting cars for 20+ years. They also happen to be a foundry (if you know what I mean) They can do aluminum casting... get the hubs done.
B |
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