Water soluble metal etch???
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Elder User
Joined: May 2001
Posts: 646
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From: East Norriton,PA
Water soluble metal etch???
To all the Por 15 users out there, Anybody using anything to clean the metal before applying , besides the por 15 metal ready..
I had an email from a por15 employee and he said use a water soluble metal etch to clean the metal...Where can i find such an item???
Since i cant get the por 15 stuff over the counter, there must be something to use more readily
I had an email from a por15 employee and he said use a water soluble metal etch to clean the metal...Where can i find such an item???
Since i cant get the por 15 stuff over the counter, there must be something to use more readily
Admom
Joined: Feb 2001
Posts: 9,414
Likes: 201
From: Silver Springs
Water soluble metal etch???
You can actually use POR15 without using their Metal Ready first. Just make sure you get the heavy rust off with a wire wheel or sandblaster or the like first.
Personally, I feel safer using a product like their Metal Ready or something since I can see the difference before painting over the bad areas. We've been using OSPHO, which I've found at Home Depot in the paint department. It's only about $12-$14 a gallon at Home Depot as opposed to close to the same price for a quart at an auto paint store, and way cheaper than Metal Ready. I've been very pleased with the results of both products. Thing is, you have to leave the OSPHO on longer (24 hrs) whereas the Metal Ready gets washed off with water after 20 mins. For the real heavy rusted spots you should (don't have to) leave either of them on for a good 24 hrs, sand the heavy spots again, then treat again.
Also, if you're looking to paint the POR15 on a visable part, such as the frame, and want a fairly smooth looking finish, you'll need to sand off the places where the OSPHO really bubbled up after it cured(you'll see what I mean if you use it, turns black and is raised).
Good luck with you project and let us know how it turns out.
Carlene
Personally, I feel safer using a product like their Metal Ready or something since I can see the difference before painting over the bad areas. We've been using OSPHO, which I've found at Home Depot in the paint department. It's only about $12-$14 a gallon at Home Depot as opposed to close to the same price for a quart at an auto paint store, and way cheaper than Metal Ready. I've been very pleased with the results of both products. Thing is, you have to leave the OSPHO on longer (24 hrs) whereas the Metal Ready gets washed off with water after 20 mins. For the real heavy rusted spots you should (don't have to) leave either of them on for a good 24 hrs, sand the heavy spots again, then treat again.
Also, if you're looking to paint the POR15 on a visable part, such as the frame, and want a fairly smooth looking finish, you'll need to sand off the places where the OSPHO really bubbled up after it cured(you'll see what I mean if you use it, turns black and is raised).
Good luck with you project and let us know how it turns out.
Carlene
