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The Pub For General Automotive Related Talk |
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28-10-2024, 06:27 AM | #1 | ||
DIY Tragic
Join Date: Apr 2018
Location: Sydney, more than not. I hate it.
Posts: 22,367
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If the main task is cleaning up chassis and subframe parts (forged, cast, pressed ferrous) with some age/weathering, what’s the suggested grade of garnet for blasting prior to new paint?
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28-10-2024, 07:34 AM | #2 | ||
Cabover nut
Join Date: Aug 2015
Location: Onsite Eastcoast
Posts: 11,275
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Blasted our 6mm plate hull with 30/60 80 grade garnet, would be a suitable for a little heavier steel, like a truck chassis if that's all you were using it for.
Brown aluminium oxide is a lighter grade for surface prep. Boatyard supplier was Blastone in Silverwater don't know if they are still around. Most boatyards have all gone to beadblasting lately.
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28-10-2024, 08:03 AM | #3 | ||
DIY Tragic
Join Date: Apr 2018
Location: Sydney, more than not. I hate it.
Posts: 22,367
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Unfortunately, Blastone (now in Wetherill Park) only do 2 tonne bags of 30/60.
Will give this grade a try with a 25kg bag from Hare & Forbes. |
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