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Old 08-10-2015, 01:21 PM   #1
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Proper use of POR 15?

Does anyone have experience with it? Me and my lovely lady bought some for our 40ft conversion and her rusted floors.

I have treated the whole floor with prep and etch which is similar to their metal prep stuff. No grease on the floor so I don't think the degreaser is necessary.

Essentially our plans for treating the floor have been this.

1) Treat with KleanStrip Prep and Etch (phosphoric acid)
2) Grind/Sand down treated areas.
3) Vacuum and sweep dust particulates
4) Treat with Metal Prep (more phosphoric acid) once it arrives as per directions.
a)After Metal Prep is sprayed, wash it down with warm water and let dry?
5) Paint with POR 15 and let dry
a) Apply second coat of Rust Prevention
6) Paint with Top Coat (even though we are flooring and framing it out this is meant for UV resistance but its supposedly a tough layer that makes the coat even better)
7) Frame and insulate.

If you guys have any tips, pointers or criticism to using this so that I can worry less about proper adhesion Id love to hear them

Its good to be here. I will start a thread for our conversion project in the proper location
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Old 08-10-2015, 02:16 PM   #2
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First and most important, Use only products in the por 15 brand line up. They are part of a system. Not other brand chemicals.

The more rust you remove, the less metal prep chemical it will take to convert the rust.

Don't use the metal ready on a hot day. You need to keep the metal prep wet on the rust as long as you can.
I sprayed it in the evening after the sun was starting to go down. The dew from the night would help keep it wet longer, and gave great results the next day.
Spraying it in the heat caused the metal ready the evaporate before it could do it's job.

Use a hand pump weed sprayer that makes a fine mist for spraying the degreaser, and the metal ready. you don't want to be using a little hand squirt bottle.

Make sure the metal ready is Compleatly dry before painting with the por 15 paint. Failure to do so will cause the paint not to stick, and it will peal off.

Don't wash with water after spraying the rust converter (metal ready). Paint with the white coating the metal ready left on the metal.

Again, don't use other brand chemicals.

Nat
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Old 08-10-2015, 02:22 PM   #3
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Quote:
Originally Posted by StruggleBus View Post
No grease on the floor so I don't think the degreaser is necessary.
I wouldn't skip the degreasing step on any metal paint project...
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Old 08-10-2015, 02:34 PM   #4
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I wouldn't skip the degreasing step on any metal paint project...
I agree.

The degreasing is one of the most important steps.

Nat
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Old 08-10-2015, 02:41 PM   #5
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Thanks for your advice guys. It really means a lot.

Okay so some more questions.
If I have all ready done the Prep and Etch what should I do to go about removing that brand from the flooring? A misinformed video from lemonheadpress gave the advice to use Ospho for the POR 15 prep, this is why the Prep and Etch came into play. We have only applied one coating so it wont be too much removal.

Also, we have already purchased some MetalPrep, Rust Prevention Paint and Top Coat from Amazon and are waiting for the delivery, if we ordered the Degreaser/Marine Clean stuff from Amazon in might not show up till Thursday. Is there anywhere locally or any chain stores that carry this stuff so we can just go out and buy the Degreaser? Walmart is said to have it but it seems its only online. I really would just want to get it from the store.

Once again thanks for your advice.
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Old 08-10-2015, 02:47 PM   #6
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I used it on the windshield frame of my 74 VW Thing. Be sure to wear gloves. That stuff will turn your hands black fast and it aint coming off anytime soon.
One more note, paint over the por15 by following the directions. Not too soon, not too late. Too late and it won't adhere to the por15. I used the tube of the thick stuff to fill holes by laying screen across the hole and creating a patch. It was strong and hard. Oh, and wear gloves!
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Old 08-10-2015, 03:36 PM   #7
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Okay well. I ordered the Degreaser and it will be here by Wednesday so that is the day that I will start working on it hopefully. I got a pump sprayer for the Degreaser/Metal Prep.

Do you guys have any advice to remove the Prep and Etch thoroughly or will the Degreaser do that? Should we just sand/grind/polish and vacuum like we have been doing? I really want the POR 15 to bond, that's why I am asking.

Thanks,
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Old 11-26-2015, 03:20 PM   #8
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POR 15 Metal Prpe - to rinse or not to rinse ?

Quote:
Originally Posted by nat_ster View Post

Don't wash with water after spraying the rust converter (metal ready). Paint with the white coating the metal ready left on the metal.


Nat

Hi Nat_ster:

I see you say not to rinse the metal prep before painting on the Por 15 coating. The instructions from Por 15, on the product and when I asked their staff on the phone, say to rinse well. I am curious about your experience with the stuff and why you think it's better t not rinse. I want to do this thing right.

I am preparing to do the 3-step process on the whole floor of my bus.

Thanks, in advance, for any advice.

Chrissy
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Old 11-26-2015, 06:32 PM   #9
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I'd listen to the manufacturer.
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Old 11-27-2015, 02:06 AM   #10
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You rinse after degreasing, not after metal prep.

Read it again.

I could be wrong, but it would make no sense to wash all the white etching stuff off, and contaminate the surface with water.

Nat
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