ZiggieCie Posted October 4, 2015 Share Posted October 4, 2015 There are many questions on Dolomite micro-blaster media sources. Here are some links to suppliers and producers for fine ground Dolomite, form a not commonly known source. Base Ball, Football, Soccer, Schools, Etc. The main product used for lineing all of these sport fields is fine ground Dolomite by the hundreds of pounds. I came across a partial bag of this product at a garage sale, cheep. At first I didn't know if I had a use for this 40 LBS of powder, (unknow at the time) but I bought it to check on it. I found out that it is used for marking white lines on ball fields and that it is powdered Dolomite and it worked great in my cheep micro-blaster. Checking the MSDS information from the producer showed that this powder is almost 100% pure Dolomite and if you can find a local source it is only $5 to $10 dollars US per 50 pound bag. Now that is dirt cheep to what many charge for blasting media. The main producer is the Imerys company out of Georgia. Link: http://www.imerys-perfmins.com/usa/markets/field-marking.htm They also have a European branch: Le Choix Des Pros listed on the bag I have. I am thinking that a possable source would be your local school system sports/maintence detartments. They may be able to sell you a bag, order you a bag or give you a name of a local supplier. This might help for someone not close to a supplier as I would think shipping is expensive for a 50 lb. But here are some links for suppliers on line. Better Baseball: http://www.betterbaseball.com/50-lb-bag-of-marking-chalk.html?gclid=CLL838SNp8gCFYM6aQodOvgFUQ JRK seed supply, Diamond White Plus: http://allproturfsupply.com/sportsinfield.html Beamclay.com http://www.beamclay.com/107A%20-%20Field%20Marking%20Chalk%20and%20Dry%20Line%20Marking%20Equipment.pdf Sullivan Corporation; Plus 5, From IMERYS http://www.hellotrade.com/sullivan-corporation/athletic-field-marker-chalk.html I hope this info helps someone to get a cheeper blast medium, and ideas for suppliers of this needed product. Ziggie Cie 2 Link to comment Share on other sites More sharing options...
Auspex Posted October 4, 2015 Share Posted October 4, 2015 How is the consistency of the particle size? Do you have to screen it? "There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant “Try to learn something about everything and everything about something.” - Thomas Henry Huxley >Paleontology is an evolving science. >May your wonders never cease! Link to comment Share on other sites More sharing options...
Raggedy Man Posted October 4, 2015 Share Posted October 4, 2015 Some good information Ziggie! ...I'm back. Link to comment Share on other sites More sharing options...
elegantoceras Posted October 4, 2015 Share Posted October 4, 2015 Whats your cheap micro blaster? And thanks for the heads up! Link to comment Share on other sites More sharing options...
ZiggieCie Posted October 4, 2015 Author Share Posted October 4, 2015 How is the consistency of the particle size? Do you have to screen it? Particle size seams very consistant. I don't have a sized sieve yet but I use a nylon curtain sheer to sift it and most goes through it, so it is fine ground. I think that it should run through my Paasche remote air abrader with out sifting. Link to comment Share on other sites More sharing options...
ZiggieCie Posted October 4, 2015 Author Share Posted October 4, 2015 Whats your cheap micro blaster? And thanks for the heads up! My cheep one is the Harbor frt. copy of the Paasche air scribe with the media cup on top of the pen. Link to comment Share on other sites More sharing options...
jpc Posted October 5, 2015 Share Posted October 5, 2015 Pottery suppliers also have cheap dolomite. And, yes you should sieve it. Anyone in the Denver area can go to Stone Leaf Pottery. You can buy it for cheap, but shipping is expensive, so any time I go to Denver on a weekday, I try to stock up. Link to comment Share on other sites More sharing options...
RJB Posted October 6, 2015 Share Posted October 6, 2015 This is fantastic. Looks like im going to have to buy another sieve. Thanks Ziggy. RB 1 Link to comment Share on other sites More sharing options...
Fossil Claw Posted December 3, 2015 Share Posted December 3, 2015 You can order it on the DO it Best hardware site and have it shipped free to your local do it best store. $7.79 plus local tax. Link to comment Share on other sites More sharing options...
Fossil Claw Posted December 3, 2015 Share Posted December 3, 2015 There are many questions on Dolomite micro-blaster media sources. Here are some links to suppliers and producers for fine ground Dolomite, form a not commonly known source. Base Ball, Football, Soccer, Schools, Etc. The main product used for lineing all of these sport fields is fine ground Dolomite by the hundreds of pounds. I came across a partial bag of this product at a garage sale, cheep. At first I didn't know if I had a use for this 40 LBS of powder, (unknow at the time) but I bought it to check on it. I found out that it is used for marking white lines on ball fields and that it is powdered Dolomite and it worked great in my cheep micro-blaster. Checking the MSDS information from the producer showed that this powder is almost 100% pure Dolomite and if you can find a local source it is only $5 to $10 dollars US per 50 pound bag. Now that is dirt cheep to what many charge for blasting media. The main producer is the Imerys company out of Georgia. Link: http://www.imerys-perfmins.com/usa/markets/field-marking.htm They also have a European branch: Le Choix Des Pros listed on the bag I have. I am thinking that a possable source would be your local school system sports/maintence detartments. They may be able to sell you a bag, order you a bag or give you a name of a local supplier. This might help for someone not close to a supplier as I would think shipping is expensive for a 50 lb. But here are some links for suppliers on line. Better Baseball: http://www.betterbaseball.com/50-lb-bag-of-marking-chalk.html?gclid=CLL838SNp8gCFYM6aQodOvgFUQ JRK seed supply, Diamond White Plus: http://allproturfsupply.com/sportsinfield.html Beamclay.com http://www.beamclay.com/107A%20-%20Field%20Marking%20Chalk%20and%20Dry%20Line%20Marking%20Equipment.pdf Sullivan Corporation; Plus 5, From IMERYS http://www.hellotrade.com/sullivan-corporation/athletic-field-marker-chalk.html I hope this info helps someone to get a cheeper blast medium, and ideas for suppliers of this needed product. Ziggie Cie Ziggie what PSI do you recommend on Ohio trilobites? Cincinnati area specifically. Thanks. Link to comment Share on other sites More sharing options...
ZiggieCie Posted December 3, 2015 Author Share Posted December 3, 2015 The pressure can vary allot, 30 to 60 psi. It depends on the condition of the Bug and the stone it is in. If it has a thin shale coating on it or locked in cement hard limestone. It's all trial and error. Just keep the errors small. Link to comment Share on other sites More sharing options...
Fossil Claw Posted December 3, 2015 Share Posted December 3, 2015 The pressure can vary allot, 30 to 60 psi. It depends on the condition of the Bug and the stone it is in. If it has a thin shale coating on it or locked in cement hard limestone. It's all trial and error. Just keep the errors small. I wonder if that us part of my problem getting my mini air eraser to work. I was trying higher PSI. Link to comment Share on other sites More sharing options...
ZiggieCie Posted December 3, 2015 Author Share Posted December 3, 2015 I found the small air eraser a pain in the buttroast. Mine is the generic ver from HFrt. I found that the media had to be dry!!! You have to keep the ports clean. Take the tip off and make sure that area is open. For the cup, the small holes in the bottom of the cup around the stem can clog up. I took a small stainless steel wire from one of those cheap wire brushes and a forceps to hold it, to clean out those small areas. When you have everything apart hold your finger over the stem and tap the air button to make sure air is blowing through everything. Put it back together and hope for the best. If I could get it to run through several small cups of media with clogging up I thought I was doing good. I do have the air and water traps on mine but it still would clog. Hope this helps. I really like the bigger unit I wrote about, much less likely to clog. Link to comment Share on other sites More sharing options...
Fossil Claw Posted December 3, 2015 Share Posted December 3, 2015 (edited) Good thing I asked for the bigger one for my birthday. I will save the smaller on the aluminum oxide which runs through it fine. And I will use the bigger one for baking soda and dolimite. Edited December 3, 2015 by Fossil Claw Link to comment Share on other sites More sharing options...
ZiggieCie Posted December 4, 2015 Author Share Posted December 4, 2015 Sounds like a great plan, HAPPY BIRTHDAY Link to comment Share on other sites More sharing options...
Fossil Claw Posted December 4, 2015 Share Posted December 4, 2015 Thanks. A few weeks away. 1 Link to comment Share on other sites More sharing options...
jpc Posted December 4, 2015 Share Posted December 4, 2015 Good thing I asked for the bigger one for my birthday. I will save the smaller on the aluminum oxide which runs through it fine. And I will use the bigger one for baking soda and dolimite. I am curious... What do you regularly prep with aluminum oxide.? Link to comment Share on other sites More sharing options...
Fossil Claw Posted December 4, 2015 Share Posted December 4, 2015 I am curious... What do you regularly prep with aluminum oxide.? I don't regularly prep anything yet. I am new to prepping (this summer) and have mostly only worked on practice materials. When practicing I found some of the matrix from northern KY to be very hard and had had success mixing aluminum oxide and baking soda on the really hard stuff. I have also heard from some locals that aluminum oxide on very low press (30 PSI) is ok on local flexis. Have not tried it yet. I just bought a bunch of unprepped B grade (to practice) and A grade (to keep/trade) material. This winter will be my first time regularly prepping fossils. I have close to 50 or so unprepped and partially prepped trilos for the winter! Given I am new to air abraiding I might find its a bad idea to use on anything, Link to comment Share on other sites More sharing options...
Blastoid Posted December 6, 2015 Share Posted December 6, 2015 I'm in the same boat as you, and am eager to hear more as you progress. I have a ton of Green River fish waiting for air abrasion, and am now acquiring a bunch of unprepped trilobites. Just need to get an air dryer, sieves, and make the blast box and dust collector. Looking forward to further reports, keep us posted! 1 Link to comment Share on other sites More sharing options...
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