For when you'd like to blast the hull / other metal parts...

Corrosion, Paint, Through Hulls, etc.
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bcassedy
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For when you'd like to blast the hull / other metal parts...

Postby bcassedy » Tue Feb 20, 2018 9:34 am

I ran across this YouTube video about a DIY sandblast unit for under $10 (Jeff'll love it! :lol: ). It's not for large jobs but if you'd like to blast (uses walnut shells from Harbor Freight) a spot/section on the boat this might be useful. It would eliminate sanding swirls.

https://www.youtube.com/watch?v=k6L_ArXCbYs

One caveat...
The YouTube setup refers to not cutting off the bottom of the pop bottle in order to refill with walnut shells because of blowup of the shells when air is applied. You could, with a little modification, use the shell of an old thermos bottle as your container. The "lid" of the thermos bottle is plenty thick for the insertion of the blow tube and you can unscrew the bottom to refill.

Bill
Bill & Sharon Cassedy
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'88 32' Sedan Bridge
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Fastjeff
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Re: For when you'd like to blast the hull / other metal parts...

Postby Fastjeff » Wed Feb 21, 2018 7:09 am

Have one like it for years--and got it cheaply (of course). Great tool.

The problem with these is that they go through sand at a ferocious rate and you have to constantly refill the hopper. Also, the sand has to be filtered to remove any semi-large stones that clog the nozzle. I made a screening deal to do that before finding a source of filtered sand.

Jeff
"We live at the bottom of an ocean of air, not at the top." General Marvage Slatington

tjc7t7
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Re: For when you'd like to blast the hull / other metal parts...

Postby tjc7t7 » Wed Feb 21, 2018 6:30 pm

Great idea! Thanks for the post!
1984 28 Express hardtop single 318. Lake Erie Jefferson Ohio