Does sea sand work in a blast cabinet?
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From: Chas on 21 Oct 2009 11:11 "eatmorepies" <jspamn(a)olineone.net> wrote in message news:7k86foF35hst1U1(a)mid.individual.net... > Hello > > My new sandblast cabinet has arrived but the black grit I bought at the > Stafford Show is too aggressive for aluminium. A friend suggested very dry sea > sand instead. > > Any thoughts? > !!! STOP !!! If you use sand for blasting please ensure it is a proper, graded blasting media. Oridinary sand may be high in sillica which is very bad for the lungs & a known hazard for blasters. IME, using sand (any grade) is good for stripping concrete off metal but a little too aggressive for anything else, certainly for any alloy bike parts that aren't going to be powder coated after. Do a lot of research before you chuck anything you want to keep in the cabinet, what media you use & at what pressure is very important when it comes to getting what finish your after on any particular material.
From: Mark Olson on 21 Oct 2009 14:28 Beav wrote: > "eatmorepies" <jspamn(a)olineone.net> wrote in message > news:7k86foF35hst1U1(a)mid.individual.net... >> Hello >> >> My new sandblast cabinet has arrived but the black grit I bought at the >> Stafford Show is too aggressive for aluminium. A friend suggested very dry >> sea sand instead. >> >> Any thoughts? > > Yeah, nuts. Well the shells of nuts actually. Ground up (and available for > blasting use) and far less aggressive than sand or most other blasting > medium. Saw this mob at a trade show today: http://www.coldjet.com/en/information/what-is-dry-ice-blasting.php
From: zymurgy on 21 Oct 2009 16:19 On Oct 21, 4:11 pm, "Chas" <Me(a)Home> wrote: > "eatmorepies" <jsp...(a)olineone.net> wrote in message > > news:7k86foF35hst1U1(a)mid.individual.net... > > > Hello > > > My new sandblast cabinet has arrived but the black grit I bought at the > > Stafford Show is too aggressive for aluminium. A friend suggested very dry sea > > sand instead. > > > Any thoughts? > > !!! STOP !!! > > If you use sand for blasting please ensure it is a proper, graded blasting > media. > > Oridinary sand may be high in sillica which is very bad for the lungs & a known > hazard for blasters. Safety Nazi .... Paul.
From: Beav on 21 Oct 2009 18:25 "Tim" <tim(a)nospam.osvif.demon.co.uk> wrote in message news:G2ETViNQzx3KFwZJ(a)nospam.osvif.demon.co.uk... > In message <KzEDm.34925$q07.20179(a)newsfe30.ams2>, Beav > <beavis.original(a)ntlwoxorld.com> writes >> >>"eatmorepies" <jspamn(a)olineone.net> wrote in message >>news:7k86foF35hst1U1(a)mid.individual.net... >>> Hello >>> >>> My new sandblast cabinet has arrived but the black grit I bought at the >>> Stafford Show is too aggressive for aluminium. A friend suggested very >>> dry >>> sea sand instead. >>> >>> Any thoughts? >> >>Yeah, nuts. Well the shells of nuts actually. Ground up (and available for >>blasting use) and far less aggressive than sand or most other blasting >>medium. >> >> > > Can't Nige be stood close to the object. He's fairly good at "blasting". > Come to think of it he may have to tone it down a bit or it'd be too > abrasive. :-) Well he's nutty enough, but grinding him down would likely prove to be a long process. -- Beav VN 750 Zed 1000 OMF# 19
From: steve auvache on 21 Oct 2009 18:31
In article <7k86foF35hst1U1(a)mid.individual.net>, eatmorepies <jspamn(a)olineone.net> writes >Hello > >My new sandblast cabinet has arrived but the black grit I bought at the >Stafford Show is too aggressive for aluminium. A friend suggested very dry >sea sand instead. > >Any thoughts? All about consistency innit. While the idea may seem sound and pikey enough to appeal to most in these parts I would suspect that conformity of particle size might be an issue for the unwary. I do know of a bloke who uses ground glass to do sand blasting though. Available in large quantities from the bottom of recycling bins in many posh parts of towns everywhere. -- steve auvache |