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Post #1
 2nd June 2006 - 04:54 PM
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We just sandblasted my car so i thought i would put up an article. car before blasting  1. We hired a big aircompresser and sandblaster, and got a trailer load of sand. Sandblaster  Compresser  Sand  2. You need to use dry sand, so to dry it we layed out some groundsheets and spread some sand on them.  3. Before putting the dry sand in the sandblaster it needs to be filtered with flyscreen otherwise the nozzle will most probly get blocked.  Instead of filtering it staight into the sandblaster we filtered it into a wheelbarrow first before we started sandblasting so that it was quicker to re-fill the sandblaster. Since you can re-use the sand you dont need as much sand, as the sand falls onto the ground sheet then gets sweep up and filtered again. 4. Hooking up the sandblaster  5. Using the sandblaster and compresser  6.Safety and breathing, i wore overalls instead of longpants  7. Now your ready for sandblasting while one person was sandblasting the other can be filtering sand ready to fill it up agian, and when it runs out of sand signal that its ran out and the other person can then turn off the sandblaster and re-fill it.  Don't have your head too close to where your blasting because if the plastic gets too much bounce back you wont be able to see much.  I blasted most of the except from inside and on the bottom.  Now look and admire your work. 8. Painting with etch primer What you need, thinners, etch primer, prepwash and spraygun with compresser.  First blow out the car and around it with the airhose to get rid of any sand, dirt in the car. We then wet around the car to stop dust going onto the car. then wipe the whole car down with prepwash on a very clean rag. 9. Now your ready to paint  When painting with the etch primer it is sometimes hard to see where youve painted, so make sure to cover all the bear metal. After we finished painting we checked over the car to make sure there were no missed spots.  This post has been edited by Wagonz: Jun 3 2006, 07:24 AM |
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nferno
Post #5
You shouldnt actually sandblast the outer panels of a car, It can warp, dint, ripple them. |
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SIKUNIT
Post #9
as NFERO its not really advisable to sandblast the bigger outer panels of a car as the sand actualy causes friction and tha causes heat hence warping panels. |
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Unfinished Project
Post #10
My old man was a spraypainter & sandblaster for many years. I'm currently restoring a car and he flatly refused to sandblast it on the basis that it would almost certainly warp the panels. My car is a Mazda 1300 which is about as much of a lightweight as you can get (under 850kg). |
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sedate looking
Post #11
This would have to be the worse so called "tech article" i have seen.. Did you even give any of the above points a second thought? What about neighboring houses/ properties... If you had of been sand blasting beside me , i would of shown you exactly where you could put your blaster... |
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venom6
Post #13
hmmm,prob not the best way to go about it,been doing this for some time now and know the dangers that come with using (sand) its full of silica which is poses nasty health risks,better off using the proper blast media such as a fine grade garnet,also the friction created using sand can warp panels quiet easily if u blast front on or hold it in the one spot for too long,garnet is great for doing areas such as engine bays,door jams and sills ect but for panels bead blasting can be quiet useful as they don't generate heat,if gone the the right way about u can save urself a lot of headaches in the long run as u can see what ur working with.probably best to get done somewhere that specialize in this kind of work tho as its in a controlled enviroment that have to meet strict laws,also works out cheaper than having to hire all the equipment,an average size chassis to fully sandblast wont usually set u back any more than 250 to do,once done,trying to rid all the sand out of every corner is the hardest part lol |
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55 Chevytruckrod
Post #14
QUOTE(venom6 @ Oct 30 2007, 06:42 AM) [snapback]1281580041[/snapback] hmmm,prob not the best way to go about it,been doing this for some time now and know the dangers that come with using (sand) its full of silica which is poses nasty health risks,better off using the proper blast media such as a fine grade garnet,also the friction created using sand can warp panels quiet easily if u blast front on or hold it in the one spot for too long,garnet is great for doing areas such as engine bays,door jams and sills ect but for panels bead blasting can be quiet useful as they don't generate heat,if gone the the right way about u can save urself a lot of headaches in the long run as u can see what ur working with.probably best to get done somewhere that specialize in this kind of work tho as its in a controlled enviroment that have to meet strict laws,also works out cheaper than having to hire all the equipment,an average size chassis to fully sandblast wont usually set u back any more than 250 to do,once done,trying to rid all the sand out of every corner is the hardest part lol  Most of you folks are clueless on the "warping" issue. Fact: blasting does NOT warp panels due to HEAT. It can warp panels due to the pounding action of the sand. Consider a thousand hammers pounding on the tin....that STRETCHES the metal and causes the warping. There is absolutely NO HEAT INVOLVED! The air volume ALONE doesn't allow heat to be a factor. The simple solution is to hold the gun at a 45 degree angle to the panel. That will eliminate the issue. I blast on my property often, sometimes (but rarely) with silica sand. Although my nearest neighbors are over 300 feet away, if they want to voice their displeasure, they can do so over the din of my mighty 250 cfm air compressor. It's a free world, I own my property, and if they don't like what I'm doing, they can go pound salt. Sick the EPA on me, I dare ya. Bunch of pansy arses, all of ya! Argggghhhh! Oh, and to 93RZTT: that was a mighty shamefull plug for your chemical stripping business. Shame on you for instilling the fear of gawd in these poor unwitting yutes! By the way, what do you do with all those harmless chemicals when you're done? Don't tell me it goes to a "proper" landfill, cause that's just plain hockey pucks. Less harmfull to living things than sand? I think NOT!!!! Love and kisses, 55 Chevytruckrod 
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r34magna
Post #16
why all the bitching let him do it his way the car looked allright take your time getting it all straight and it should look good i have built many old cars and sometimes the best way to learn is by stuffing up not by listening to people verbally bash you. take your time and keep it up all should work out fine |
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sedate looking
Post #17
QUOTE(r34magna @ Feb 11 2008, 01:06 PM) [snapback]1281916033[/snapback] why all the bitching let him do it his way the car looked allright take your time getting it all straight and it should look good i have built many old cars and sometimes the best way to learn is by stuffing up not by listening to people verbally bash you. take your time and keep it up all should work out fine How about because what he has put up here as a "so called tech article" is actually illegal to do without the approved permits in place... No mention of the safety issue's with doing this, no mention of panel damage that can result in doing this... nothing... WITHOUT A DOUBT , THIS IS THE WORSE TECH ARTICLE I HAVE EVER SEEN!!!!! |
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misterstripper
Post #18
WARNING...DONT TRY THIS AT HOME |
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jared_pulse
Post #19
i don kno whether to sandblast mine? there is side effects caused but its easy an quick tho..good article on showin how to do this |
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bigjeeper
Post #22
I am not a pro at anything except landscaping, but I got a 1980 J10 jeep truck that I always wanted and I set out to restore it. |
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isky
Post #23
Awesome article Wagonz! Thanks for taking the time to show us how 'YOU' do it....you other morons on here trying to bring him down, i dont see all you going to the trouble he's gone to to help out the rest of us. Quit your bitchin, your gay little caps and get a fu#king life. There's multiple ways of doing everything. This way is the Wagonz way. I do things different to how others would do them all the time. Neighbours! Health risks!! give me a freakin break. Sounds like all you complaining pussies and various business folk are trying to put the fear of God into those who would be so bold a to do things themselves and not pay you for your services. People don't just jump into a project like this without doing ample research, and not just after seeing one persons admirable effort.... so im pretty sure people will work out they're own best way. Wagonz has done just that and it looks great. Ive actually got quite a bit out of seeing how he did it. Thanks for sharing. Keep up the good work. |
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