 Hey Painters..., Q regarding wash primers. |
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| Rusty |
  Mar 15 2005, 06:19 PM
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914 Guru  Group: Admin Posts: 7,974 Joined: 24-December 02 From: North Alabama Member No.: 6 Region Association: South East States 
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It's been so long since I've held a paint gun... I need some refreshing.
I know that ideally, wash-primer and primer-surfacer should be from the same paint system. Is that a hard and fast rule? I want to lay down a PPG wash-primer (1791 primer/1792 catylist) on bare metal and later coat it with an (unknown yet) brand of primer surfacer. My (often faulty) memory seems to tell me that wash-primer is pretty generic. Is there a signficant chance of bubbling or other incompatibility? -Rusty (IMG:http://www.914world.com/bbs2/html/emoticons/smoke.gif) |
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| 914GT |
Mar 15 2005, 07:35 PM
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Senior Member Group: Members Posts: 1,101 Joined: 11-October 04 From: Tucson Member No.: 2,923 Region Association: Southwest Region |
Rusty
You'll want to topcoat that with either epoxy primer or a 2k urethane primer/surfacer for sanding. You should be OK with any 2k primer surfacer but it might be wise to use K36 or other compatible PPG product. Your other option is to use epoxy on the bare metal if the old paint was recently stripped off and degreased. You can let the epoxy flash and immediately shoot K36 or other 2k primer on top of that. The wash primer is incompatible over acrylic lacquer and spot putty so make sure all of those are removed if they exist. |
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Posts in this topic
Lawrence Hey Painters... Mar 15 2005, 06:19 PM
! With the rule changes and reformulations of paints... Mar 15 2005, 07:44 PM Travis Neff Edumecate me.
I understand the epoxy primers, pri... Mar 16 2005, 11:19 AM 914GT Essentially a self-etch primer. Has an acid base ... Mar 16 2005, 03:47 PM 9146986 For bare metal I use DuPont Vari-Prime, but it... Mar 16 2005, 08:12 PM
xsboost90 ive used alot of expensive primers, mostly dupont,... Mar 16 2005, 09:08 PM |
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