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Are there any good spray can primers? #3018327
02/24/22 01:28 AM
02/24/22 01:28 AM
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340SIX Offline OP
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I do a lot of small parts and hate having to clean up after shooting them with my good HPLP Gun.
So was wondering if there are any good products in spray bombs?
I am not talking about the ones that have a hardener in the base of the cans, as those must be used just one time and done
Thanks.


[img]https://i234.photobucket.com/albums/ee87/fast340six/sig%20pics/2840886-340SIX-1.jpg[/img]
VP of the MPM in New Orleans
73 Dart Sport 340/ 70 challenger vert. That may still get built, If I live long enough
Re: Are there any good spray can primers? [Re: 340SIX] #3018333
02/24/22 02:32 AM
02/24/22 02:32 AM
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SEM products

81s4Jypno6L._AC_SL1500_.jpg81-vpIrtJ2L._AC_SL1500_.jpg81qkulQ6B+L._AC_SL1500_.jpg
Re: Are there any good spray can primers? [Re: 340SIX] #3018340
02/24/22 05:36 AM
02/24/22 05:36 AM
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Kirkland, Washington
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HPLP gun? Something new?

Re: Are there any good spray can primers? [Re: Pacnorthcuda] #3018341
02/24/22 05:51 AM
02/24/22 05:51 AM
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Moparite Offline
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You asked for "good" witch epoxy is(two part rattle cans). The sem stuff is not epoxy so it may be "good" but not as "good" as epoxy.

Re: Are there any good spray can primers? [Re: Moparite] #3018346
02/24/22 06:51 AM
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Mr T2U Offline
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maybe look into a Prevail spray gun.
it's basically a make your own spray bomb.
available at most quality hardware stores and pretty cheap also..


https://preval.com/

https://www.homedepot.com/p/Preval-9-oz-Complete-Spray-Gun-267/202533738


Last edited by Mr T2U; 02/24/22 06:54 AM.

perception is 90% of reality
Re: Are there any good spray can primers? [Re: Mr T2U] #3018365
02/24/22 08:14 AM
02/24/22 08:14 AM
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You can buy an airbrush setup from Hobby Lobby, among other places. I used that to repaint the side covers on my bike to match the tank years ago, worked just fine.

Re: Are there any good spray can primers? [Re: Sniper] #3018377
02/24/22 08:58 AM
02/24/22 08:58 AM
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Kirkland, Washington
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I just played around with the Spray Max two part rattle can stuff (I know you said no to these but why?) it seems like a good product and at about $25 a can delivered, it’s about as cheap as mixing your own given the price of paint these days, unless you mixing really small batches.

Re: Are there any good spray can primers? [Re: Pacnorthcuda] #3018403
02/24/22 10:10 AM
02/24/22 10:10 AM
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Originally Posted by Pacnorthcuda
I just played around with the Spray Max two part rattle can stuff (I know you said no to these but why?) it seems like a good product and at about $25 a can delivered, it’s about as cheap as mixing your own given the price of paint these days, unless you mixing really small batches.


I do not know how to multi quote sorry.
As,far as the guns I use they are HVLP Sharpee. But my screen was cracked so typed wrong sorry.
The Spray Max is great but is once and done as the primers and paints are catalyzed so can not save what's not used for later.
If I needed thst much I woukd use my gun.
I have PPG DP40 epoxy and Evercoat 2K Slicksand High Build in my cabinets.
I saw the SEM etch cans but did not know thet had high build thanks.
I build or work in its if small things and was just looking for the ease of spray bomb it for later vs turning the compressor on, mixing primer, getting hoses , hooking up an extra water separater. Then mixing primer clean gun and pick everything up for just a small part like I have been doing.

Thanks for all the replys


[img]https://i234.photobucket.com/albums/ee87/fast340six/sig%20pics/2840886-340SIX-1.jpg[/img]
VP of the MPM in New Orleans
73 Dart Sport 340/ 70 challenger vert. That may still get built, If I live long enough
Re: Are there any good spray can primers? [Re: 340SIX] #3030297
04/03/22 02:21 PM
04/03/22 02:21 PM
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Eastwood has a new 2k primer in a spray can that supposedly mixes in the air so can doesn't have to be used all at once. Eastwood 2K DuraSpray claims unlimited pot life. Haven't tried it but it's out there.

Re: Are there any good spray can primers? [Re: kork340] #3030337
04/03/22 04:21 PM
04/03/22 04:21 PM
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short of a catalyzed product, you can use a moisture cure urethane. this product is just as good as it gets! buy a gallon and have it put in to spray cans. it is expensive. anything that really works will be. this will solve the set up clean up. if you use this product, you will need to topcoat it within 24 hrs. or sand it to get a top coat to stick. I guarantee you this stuff will stop rust ! https://gulfcoastpaint.com/product/mcu-100-primer-finish-moisture-cured-urethane-aluminum-coating/

Re: Are there any good spray can primers? [Re: A12] #3030481
04/04/22 07:08 AM
04/04/22 07:08 AM
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I second the SEM primers - obviously not activated/hardened but about as good as you can get from a rattle can. I really like the high build as it helps fill sanding scratches and such, and the can sprays really nicely. I tried the Sherwin-Williams equivalent last week and was not nearly as impressed.

Re: Are there any good spray can primers? [Re: 83hurstguy] #3030527
04/04/22 09:58 AM
04/04/22 09:58 AM
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one of the best spray bomb primers i ever used was, believe it or not, the red oxide "dollar store" brand. shock
great coverage, stuck well, sprayed well, very durable even when not top coated, and was only 99 cents for a "large" size [bigger than the normal size] can. a couple of us bought out the whole stock when it was delivered each tuesday [wednesday maybe, i forget] late afternoon.
however, like most good things in life, it was discontinued.[sometime in the mid 80's, i think]
as we had quite the stock built up, we used that stuff for years after we couldn't get it any more.
another good thing about that stuff, was it sprayed as it should even when the stuff was old, unlike some cans today that just spit when they are old, no matter how much you shake 'em to mix.
beer

Re: Are there any good spray can primers? [Re: moparx] #3030554
04/04/22 11:14 AM
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Originally Posted by moparx
sprayed as it should even when the stuff was old, unlike some cans today that just spit when they are old, no matter how much you shake 'em to mix.
beer


I read that you can re-pressurize an aerosol can with an air hose after pulling the nozzle off the can.
I've never tried it but maybe someone here has.

Re: Are there any good spray can primers? [Re: Powerflow] #3030589
04/04/22 01:01 PM
04/04/22 01:01 PM
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Works according to a good friend........but sometimes it ends up spraying you too fan

Re: Are there any good spray can primers? [Re: A12] #3030609
04/04/22 01:50 PM
04/04/22 01:50 PM
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I put PPG DP primer into a Preval sprayer for smallish things all the time. You have to play with the reducer amount to get it to lay down smooth sometimes, but other than that they work good and don't put out much overspray or waste into the air like a paint gun does.

Re: Are there any good spray can primers? [Re: Powerflow] #3031263
04/06/22 01:13 PM
04/06/22 01:13 PM
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Originally Posted by Powerflow
Originally Posted by moparx
sprayed as it should even when the stuff was old, unlike some cans today that just spit when they are old, no matter how much you shake 'em to mix.
beer


I read that you can re-pressurize an aerosol can with an air hose after pulling the nozzle off the can.
I've never tried it but maybe someone here has.



i've done this, sometimes with mixed results.
you need a good, rubber tipped blow gun [that seals good around the can port], preferably modified by enlarging the internal orifice[s]. this gives extra air volume, which helps tremendously.
regulate the air pressure to 100lbs, place can on floor or other comfortable position so it doesn't move, place blow gun over can port so it seals, then apply pressure until you hear it equalize, just like filling a tire.
if you have been successful, can will now spray. if not, look closely at can port for dried paint or other crud, examine rubber gun tip to be sure it seals the can port completely, then try again.
it does take some "learnin' " to do this, [at least it did for me. biggrin] so don't get discouraged.
beer

Re: Are there any good spray can primers? [Re: Powerflow] #3031407
04/06/22 08:52 PM
04/06/22 08:52 PM
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Don't do this.....trust me.
Originally Posted by Powerflow
Originally Posted by moparx
sprayed as it should even when the stuff was old, unlike some cans today that just spit when they are old, no matter how much you shake 'em to mix.
beer


I read that you can re-pressurize an aerosol can with an air hose after pulling the nozzle off the can.
I've never tried it but maybe someone here has.


70 Roadrunner convt. street car 440+6, NOS, 4-spd, SS springs '96 Mustang GT convt. street car '04 4.6 SOHC, NOS, auto, lowered "Officer, that button is for short on-ramps"
Re: Are there any good spray can primers? [Re: PurpleBeeper] #3031410
04/06/22 08:56 PM
04/06/22 08:56 PM
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For a basic "air dry", I do like the SEM primer. The guys that mentioned the "moisture cure 1-component" urethane in a spray can & mix/spray 2-component epoxy (I haven't seen that) are definitely correct about MUCH better durability vs. an air dry primer. fyi- urethanes will take sunlight, but epoxy won't + epoxy is much better vs. gasoline/alcohol chemical resistance vs. a urethane


70 Roadrunner convt. street car 440+6, NOS, 4-spd, SS springs '96 Mustang GT convt. street car '04 4.6 SOHC, NOS, auto, lowered "Officer, that button is for short on-ramps"
Re: Are there any good spray can primers? [Re: PurpleBeeper] #3031458
04/07/22 02:42 AM
04/07/22 02:42 AM
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Originally Posted by PurpleBeeper
Don't do this.....trust me.
Originally Posted by Powerflow
Originally Posted by moparx
sprayed as it should even when the stuff was old, unlike some cans today that just spit when they are old, no matter how much you shake 'em to mix.
beer


I read that you can re-pressurize an aerosol can with an air hose after pulling the nozzle off the can.
I've never tried it but maybe someone here has.


Yes, you can do this with a tire stem, and it works for a few days. Eventually the outside air that is now inside the can will cause the paint to dry up and harden. Search You Tube for a video.

IMG_2361.jpg

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Re: Are there any good spray can primers? [Re: 340SIX] #3031470
04/07/22 07:04 AM
04/07/22 07:04 AM
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If a product has been sprayed with a first coat of galvanizing paint,
is there a special primer that can be a 2nd coat over the galvanizing
that will enable a 3rd coat of paint chosen because it holds up good against sunlight?

What primers do automakers use that will enable paint to stick to zinc coated sheet metal?

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