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Old 09-27-2017, 05:47 PM
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Spraying inside hidden areas, any ideas?

I am wondering if anyone has any good ways of spraying inside areas like doors and frame rails and stuff like that. I have a number of hidden areas on the truck that I would love to coat. I have "cavity wax" stuff at work that I may be able to modify but I am wondering what you guys may have done.

I found stuff like this at Eastwood but that's about it. It is primer like I want but it's an aerosol, I would really like to spray a good epoxy primer in there.



Eastwood Internal Frame Coating 14oz Aerosol


Brian

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Old 09-27-2017, 05:57 PM
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I see this gun, I was thinking about making something like this, but a pressure pot style. I wonder if epoxy primer would spray through this, I am thinking it would.

TP ToolsŪ Rustproofing Gun with Wand - TP Tools & Equipment



Or is epoxy wrong and just use the wax? Hmmmmm


Brian
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Old 09-27-2017, 06:00 PM
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Pinch the end of some small diameter metal tubing, make small holes around the tip and adapt it to a schutz gun like for undercoat and rock guard then load up an old can that you cleaned out and put epoxy or paint in. You could probably use the 3M Rust Fighter wand setup and purge it with thinner then air but its plastic. Actually if you wanted to just make the omnidirectional tip and clamp it to a hose that might get you into even more places if you guided the tip with a bent just right wire clothes hanger. Could you use an empty no-cleanup rocker spray setup and clamp a hose to It? Hmm just thinking out loud. Maybe you could make the tip by threading a bolt into tubing then drilling holes?
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Old 09-27-2017, 07:59 PM
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Quote:
Originally Posted by idrivejunk View Post
Pinch the end of some small diameter metal tubing, make small holes around the tip and adapt it to a schutz gun like for undercoat and rock guard then load up an old can that you cleaned out and put epoxy or paint in. You could probably use the 3M Rust Fighter wand setup and purge it with thinner then air but its plastic. Actually if you wanted to just make the omnidirectional tip and clamp it to a hose that might get you into even more places if you guided the tip with a bent just right wire clothes hanger. Could you use an empty no-cleanup rocker spray setup and clamp a hose to It? Hmm just thinking out loud. Maybe you could make the tip by threading a bolt into tubing then drilling holes?
I like it! I think I still have an old "rocker spray" gun, I'll go look right now.

Brian
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Old 09-27-2017, 09:33 PM
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Be careful. If you home brew something thats gonna be under pressure, maybe put on glasses and gloves and test it with water and sneak up on the pressure so if something don't hold, you ain't wearing a coat of epoxy.
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Old 09-27-2017, 10:38 PM
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True!

Brian
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Old 09-28-2017, 02:00 AM
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For my rockers I was thinking about some large holes under the sill plates that would allow me to flood the inside ...?

John
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Old 09-28-2017, 05:21 AM
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I may have in my stack of stuff some of the guns used for applying bed liner. With a long snozzle they could be used to apply epoxy inside a rocker or sills and door posts..

Sam
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Old 09-28-2017, 05:40 AM
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Would something like this work for you, throw it away when you're done;
2 Gal. Deck and Home Sprayer-190399 - The Home Depot
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Old 09-28-2017, 08:27 AM
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Would something like this work for you, throw it away when you're done;
2 Gal. Deck and Home Sprayer-190399 - The Home Depot
I scrolled right past that when I saw it in my search. But your addition "throw it away when your done" makes sense! It's cheap enough, that could be.

Brian
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Old 09-28-2017, 05:04 PM
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Quote:
Originally Posted by MARTINSR View Post
I scrolled right past that when I saw it in my search. But your addition "throw it away when your done" makes sense! It's cheap enough, that could be.

Brian
I tried to stain a fence with one once. No way. You would have to reduce what ever you used extremely thin.

John
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Old 09-28-2017, 09:11 PM
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I went into the paint shop today at work to see if there is something that may screw onto this gun I have at home (or thought I did) and grabbed a reducer bottle from our waterborne paint system and came home and it screwed on the gun! WHOO HOOO. Now I need to come up with a tip of some kind to spray it out.

I have to assume there is something out there, but I wonder if I can make a tip with very small holes that would sort of "atomize" the epoxy primer so it's not just shooting a stream which wouldn't work well at all.

Brian
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Old 09-28-2017, 09:11 PM
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Quote:
Originally Posted by John long View Post
I tried to stain a fence with one once. No way. You would have to reduce what ever you used extremely thin.

John
Yeah I can see that happening for sure, it's out.

Brian
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Old 09-29-2017, 03:32 AM
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Quote:
Originally Posted by MARTINSR View Post
I went into the paint shop today at work to see if there is something that may screw onto this gun I have at home (or thought I did) and grabbed a reducer bottle from our waterborne paint system and came home and it screwed on the gun! WHOO HOOO. Now I need to come up with a tip of some kind to spray it out.

I have to assume there is something out there, but I wonder if I can make a tip with very small holes that would sort of "atomize" the epoxy primer so it's not just shooting a stream which wouldn't work well at all.

Brian
If you have a long tip from a garden sprayer that may work. You can always shoot some water through the gun to see how it shoots before shooting real paint.. All we are trying to do is flood the interior of a rocker or door post anyway so it does not have to lay the paint down like we would want for the finish..

Sam
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Old 09-29-2017, 10:03 PM
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I hope it ends up being this easy. I was going to make something and with your suggestions and some others I got something going with my tool to apply epoxy inside of the hidden areas. I was going to make a tip to do this spraying and a guy at work mentioned just punching holes in a rubber hose with a plug on the end...hmmmm, that would make the holes much smaller and maybe would atomize it as it came out...hmmmm.

Well I got a hose and drilled a bunch of tiny holes and put a bolt to plug the end. Well, nothing, not enough pressure so nothing came out.

I pulled the bolt out and tried it and sure it came out the end but also out of the holes, ok. I put the clamp back on without the bolt and tightened it up to crush the hose a little. It works like a charm! Now with the thicker material (this was enamel reducer) we will see, but I think I have it.

Brian
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