Painting under-body, frame, etc.

[Junkman]

I am going to be painting the under-body, frame, differential, etc. on my old car soon, and was wondering what the current thoughts are on the different types of rust converters, paints, etc. I had terrible results with POR-15 the last time that I used it, so unless they have improved the product in the last 5 years, I wouldn't consider it again. Here is one kit that I have come across that looks promising. Has anyone here used any of these type products and what type of results can I expect? thanks Junk

 

[Deltarat]

What has been the trouble with the POR-15? I have had good luck with it so far. I have painted everything that I have taken off on my bronco in a frame off restoration. I hope it holds up.

 

[Junkman]

I used it acording to the instructions, and it started to peal after about 2 years.

 

[Deltarat]

Mine has been on a little over a year. I have had some small spots come loose, but I am sure that it was my fault. I may not have removed all the oil. I have the entire frame,axles,engine bay and entire bottom of the tub done. I am going to be sick if it starts to come off, after all the hours I have put into it. If it comes off, I am doing the entire inside to the tub with LineX, I will do the bottom also. If you find a better product, let us know.

 

[Kevin54]

If all of the loose rust is not removed it can and will peel. POR encapsulate the rust. It does not convert it. To me it is highly overated. If I had to do my frame again on my truck, I would sandblast or media blast everything and the paint it with some durable implement paint or a good single stage paint. POR can be used on a frame, but if you don't protect it with their UV coating, it will tend to dull out over time. Just my $.02 on POR.

 

[KBS Coatings]

I see you found our KBS All-In-One Chassis Painting Kit. That should be the perfect kit for you. As with most projects, preparation is always the key to success. This kit gives you all of the prep products that you need and we give you the detailed instructions so you can get the job done right.

Please let me know if you have any questions.

Also, we are offering 10% off to all Garage Journal Members. Just use the coupon code "GJ10" when checking out online or mention it when you call to place your order.

Ben - KBS Coatings

 

[Deltarat]

If all of the loose rust is not removed it can and will peel. POR encapsulate the rust. It does not convert it. To me it is highly overated. If I had to do my frame again on my truck, I would sandblast or media blast everything and the paint it with some durable implement paint or a good single stage paint. POR can be used on a frame, but if you don't protect it with their UV coating, it will tend to dull out over time. Just my $.02 on POR.

I sanded down my frame and axles and followed the directions for the POR and the frame turned out very well. I had a chain tied around it in 2 places and picked it up and down many times and did not even scratch it. Around some of the tight places on the axle when I could not get the grinder, I had a little trouble. I did top coat it all with the chassis coat to prevent UV fading.

 

[bochnak]

Try Eastwood:

http://www.eastwoodco.com/jump.jsp?...DUCT&path=1,2,372,379,380&KickerID=388&KICKER

 

[slowtwitch]

I've been using this product http://www.masterseriesct.com/, on my 67Volkswagen restoration. It doesnt need all the prep of Por 15.

pete

 

[5wndwcpe]

A number of the guys around here have been using pick-up truck bedliner coating, such as Rhinolining, etc. Once it's cured, you can paint over it with your topcolor if that's your preference.

 

[6t7gto]

I've been using this product http://www.masterseriesct.com/, on my 67Volkswagen restoration. It doesnt need all the prep of Por 15.

pete

I'm with Pete on this one.
Real good results for me.

David

 

[Bib Overalls]

You should not put Rhino bed liner on over rusted metal.

 

[5wndwcpe]

You should not put Rhino bed liner on over rusted metal.

Who said anything about putting it over rusted metal?

 

[toms73novass]

I'm with Pete on this one.
Real good results for me.

David

Me too.

Hands down better than POR15.(Absolutely no peeling issues) and takes a top coat well. I have also used rust encapsulator from Eastwood and is decent but I do not think anywhere as tough.

Master Series is tough moisture cured and is great for filling small pinholes etc. Use a foam brush when applying. An just like POR15 Make sure you use gloves otherwise your going to be wearing it for weeks!

I don't know if it is the same supplier but www.nomorerust.com is also link to master series.

 

[Junkman]

I see you found our KBS All-In-One Chassis Painting Kit. That should be the perfect kit for you. As with most projects, preparation is always the key to success. This kit gives you all of the prep products that you need and we give you the detailed instructions so you can get the job done right.

Please let me know if you have any questions.

Also, we are offering 10% off to all Garage Journal Members. Just use the coupon code "GJ10" when checking out online or mention it when you call to place your order.

Ben - KBS Coatings

If you would like to send me a complementary kit to use, I will report my results in these forums. Just think of me as the Consumer Reports of car restoration.

 

[Bad Brad777]

I clean off the underside of my truck about every 4-5 years and paint it, with a brush, with Rustoleum Black. It has stayed looking great and cleans well with a pressure washer without coming off. A bonus is that it is inexpensive and readily available.

Just my two cents.

 

[burger]

On various projects, I have used:

POR-15: Works great. Never had peeling issues, even on surfaces that weren't "ideal". Brushes on nice, or you can spray it. I like to buy the 6 pack of 4 oz cans in semi-gloss black. I use the top coat on anything that will see direct sunlight. I use this stuff on everything and I can't complain... other than the price.

Master Series: I've only used this once. It's on the firewall of my '54 truck. Looks GREAT... just the right amount of gloss. It hasn't held up very well though. It's pretty easy to scratch... in that regard I've had better luck with Rustoleum Appliance paint from the spraycan on firewalls (wrong gloss though). Keep in mind my experience is with the top coat and not with the rust encapsulator.

Rustoleum: I keep coming back to this stuff for "low end" jobs where I don't want to spend the money. The stuff holds up great though; probably as well as the POR15, but for some reason I have it in my head that the POR15 is better. The downside to Rustoleum is that the only thing you can topcoat it with is more rustoleum.... not a problem for the wheelbarrel, but certainly an issue with auto restoration.

 

[toms73novass]

On various projects, I have used:


Master Series: I've only used this once. It's on the firewall of my '54 truck. Looks GREAT... just the right amount of gloss. It hasn't held up very well though. It's pretty easy to scratch... in that regard I've had better luck with Rustoleum Appliance paint from the spraycan on firewalls (wrong gloss though). Keep in mind my experience is with the top coat and not with the rust encapsulator.

quote]


When talking about Master Series, I particularly is talking about the primer that is silver. This is what does the brunt of the work. I then topcoat with usually Eastwood chasse black.

I have found that the ag111 master series will scratch, however, the primer (which is the equivalent of what por15 does) I have found to not scratch off.

 

[burger]

I have found that the ag111 master series will scratch, however, the primer (which is the equivalent of what por15 does) I have found to not scratch off.

The interesting thing is that while it does scratch, it doesn't scratch through the entire thickness of the paint... just enough to leave a mark.

 

[bochnak]

Well, I decided to use a rust product on the undercarriage this winter. I will be rebuilding the front suspension, which will be the perfect time to throw some paint on.

I will degrease/pressure wash thoroughly, and may wire brush the surface. This is about the extent of surface prep I want to handle.


Anybody have any new experiences they want to share?

 

[aerobb]

I've got a couple years on my 69 bronco that's been used on the trail since using this stuff:

http://www.rustbullet.com/

Been very happy with it. Not as picky on the surface prep. Just two coats, then topcoat it.