captaingamez Posted July 21, 2013 Report Share Posted July 21, 2013 I am restoring the sunroof right now in my 910 and I want some opinions on what I should use to paint the sunroof. I am planning on using POR-15 as primer, would an epoxy based paint be a good choice? any suggestions appreciated. Quote Link to comment
captaingamez Posted July 21, 2013 Author Report Share Posted July 21, 2013 also I supose I should mention it only has a limmited ammount of rust on one side, should I strip it entirely and repaint the whole thing? I am pretty ignorant on most issues regarding painting things. Quote Link to comment
]2eDeYe Posted July 21, 2013 Report Share Posted July 21, 2013 Is it just a metal slide back? I would strip it and paint. POR15 Might be good on the inside if it has an interior panel. Quote Link to comment
captaingamez Posted July 22, 2013 Author Report Share Posted July 22, 2013 its electric, the no glass type. I am refering mostly just to the tub that contains the sliding rails and bolts to the roof of the car. the roof panel is removed from the assembly while its still in the car, and I am going to use body paint on it, none of the stuff I am painting in the tub is visible. but its a sunroof, which means it has a drain in each corner and gets water in the top while its raining, my concern is having it all resist water for another 30 years and not get rust again from the rain and moisture basically. Quote Link to comment
]2eDeYe Posted July 22, 2013 Report Share Posted July 22, 2013 POR15 is definitely a good candidate for that application. Prep is key, make sure to use the etcher. I think it is called marine clean, you will want to double check the prep instructions. Quote Link to comment
captaingamez Posted July 22, 2013 Author Report Share Posted July 22, 2013 so I should be using POR primer and then POR paint? Quote Link to comment
]2eDeYe Posted July 22, 2013 Report Share Posted July 22, 2013 http://www.tcpglobal.com/autobodydepot/por15-rust-prevention.aspx So it's been a while since I used it but, what you need is in that link. The marine clean is for removing any oils and contaminants , the metal ready is the etcher and then you use the POR15. Looks like they offer some cleanup stuff as well now, might come in handy as that stuff sticks to everything really well :lol: Quote Link to comment
MikeRL411 Posted July 22, 2013 Report Share Posted July 22, 2013 but its a sunroof, which means it has a drain in each corner and gets water in the top while its raining, my concern is having it all resist water for another 30 years and not get rust again from the rain and moisture basically. While you have it out, now is a good time to check on the condition of that 40 +/- year old vinyl{?} tube that directs the rain water down inside your A pillar to the ground. Hopefully you will not need to use the current tubes as a puller to insert a new pair of tubes. Quote Link to comment
captaingamez Posted July 22, 2013 Author Report Share Posted July 22, 2013 While you have it out, now is a good time to check on the condition of that 40 +/- year old vinyl{?} tube that directs the rain water down inside your A pillar to the ground. Hopefully you will not need to use the current tubes as a puller to insert a new pair of tubes. this is the next subject of concern, I would appreciate your input on it. there are 4 drains, one on each corner. what do you mean use the current tubes as a puller? where do the tubes actually run to? does the tube go all the way down to the bottom of the car? Quote Link to comment
nerdistmonk Posted July 22, 2013 Report Share Posted July 22, 2013 make sure you paint over that por15 it is UV sensitive Quote Link to comment
captaingamez Posted July 22, 2013 Author Report Share Posted July 22, 2013 I just called my paint store, they have POR, but $50 duurs!, oh well, good paint is worth it. They put it in a can for cheap for me too, and they have the preps as well. Quote Link to comment
]2eDeYe Posted July 22, 2013 Report Share Posted July 22, 2013 I wouldn't call it paint, more like hard ass coating that sticks to everything. :lol: Quote Link to comment
MikeRL411 Posted July 23, 2013 Report Share Posted July 23, 2013 this is the next subject of concern, I would appreciate your input on it. there are 4 drains, one on each corner. what do you mean use the current tubes as a puller? where do the tubes actually run to? does the tube go all the way down to the bottom of the car? Locate the point at the bottom of the chassis where the tubes exit and insert a plug which you will use to clamp onto with, say, a ViseGrip, Got to the sunroof compartment, insert a plug and attach your new vinyl tube to the plug. A staple or two here would probably be a good thing. Go to the other end and start pulling as gently as you can in order to get the old tube to act as a "snake" and guide the replacement through the pillar. Don't cut until you are finished pulling, " Little bit of a good thing is absolutely wonderful" to quote Mae West. Yes! the tubes go all the way to the bottom of the car. How else would you dispose of the rain water? Into your interior rugs? 1 Quote Link to comment
72240z Posted July 23, 2013 Report Share Posted July 23, 2013 You shouldnt paint over regular por15 with regular paint. They make a primer specifically to top coat por15 (tie coat) and an etcher/primer to be painted over as well. Regular paint doesnt bond properly to por15 Quote Link to comment
captaingamez Posted July 23, 2013 Author Report Share Posted July 23, 2013 hey mike thanks for the info, and HAHA, no i didnt think it drained onto my carpet lol. I wsnt sure if the tube went all the way to the bottom though or if it emptied into some type of common channel that the other one went to in either the front or back (sometimes my mind over complicates things) I am torn over wether to use POR or an epoxy based paint on the tub. Quote Link to comment
]2eDeYe Posted July 23, 2013 Report Share Posted July 23, 2013 I would use the POR15 anywhere that is hidden and paint all the exposed areas. Quote Link to comment
DaBlist Posted July 23, 2013 Report Share Posted July 23, 2013 I wouldn't call it paint, more like hard ass coating that sticks to everything. :lol: Read on one forum that the chemical make up of POR15 is very similar to super glue Quote Link to comment
72240z Posted July 23, 2013 Report Share Posted July 23, 2013 POR wasnt designed to be a primer. I use epoxy primer/base on body work and por on anything hidden like the interior, dash frame, undercarriage, suspension, back side of panels etc... With body work there is no real need or benefit to using por as a primer, if anything its just more complicated and expensive. So I would say any area to remain unexposed use por but any area you plan to paint and see just use a traditional primer sealer. Quote Link to comment
captaingamez Posted July 23, 2013 Author Report Share Posted July 23, 2013 alrighty then, POR it is. since its not really a paint do you think there would be a problem using it in an aerosol can? Quote Link to comment
72240z Posted July 23, 2013 Report Share Posted July 23, 2013 They sell a thinner ("solvent") to reduce and spray, usually a 2-1 ratio. I have heard of people using a regular lacquer thinner at 4:1 but I have no 1st hand experience with that. If you spray it use a GOOD respirator. POR15 has some VERY nasty shit in it you do not want to breath. Not a big deal when brushing but when spraying be very careful. Quote Link to comment
captaingamez Posted July 23, 2013 Author Report Share Posted July 23, 2013 maybe I will just paint it on then, not like its gonna be seen by anyone anyway. Quote Link to comment
captaingamez Posted September 5, 2013 Author Report Share Posted September 5, 2013 okay so here is the dilemna I am in. I have the por-15 and the prep. But there are areas I am not going to be able to get all the paint out of, crevices and such. I know POR will not adhere to anything other than rust and metal. What should I do here? I cant believe I havent posted any pics yet in this thread. Tonight I will. Quote Link to comment
captaingamez Posted September 5, 2013 Author Report Share Posted September 5, 2013 then theres the other issue, will it paint on copper or brass? Drains are copper and brazed in. Quote Link to comment
captaingamez Posted September 8, 2013 Author Report Share Posted September 8, 2013 bump I am pretty much leaning against using the POR at this point. It seems to be very much less than ideal for my purposes. Theres too many places I can not guarantee either complete paint removal, complete etching, OR complete adhesion. So that considered, POR, Even though I already have it and the metal prep, Is out. I can still use the metal prep though, but what should I use for paint......? 1 Quote Link to comment
captaingamez Posted September 18, 2013 Author Report Share Posted September 18, 2013 So I settled on Rustoleum and I am pretty damn happy. I did the POR prep and ready then followed with self etching primer. I wanted to get a picture of this before it got covered. Some Japanese Brazer on the assembly line probably just did this all day. He would have had to cut this copper pipe at the right angle, and then braze it in so it did not leak, and make sure that it is at the lowest point it can be in. He would have had to do 4 on each sunroof tub, one on each corner. I just thought that was something cool worth mentioning. This is very old school and is not done on ANYTHING anymore. The drain from the outside of the tub. Quote Link to comment
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