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herculiner over POR15 for underside

jackag91

Jedi Warrior
Offline
How bad of an idea is this?

After I remove all of the orginal undercoat from my TR6, I was thinking about covering the entire underside with POR15 and putting 2 coats of herculiner or some other roll on bed liner.

Has anyone tried this? I am looking for a do it once and never think about it kind of solution for the bottom of the car.
 
IMO not necessarily a bad idea but give some thought to the places that you can't get to. Unless everything is completely covered the coatings will allow ay moisture that works it's way in to stay there.
Tom
 
The entire underside of my car was stripped and painted with POR15, except for the chassis components which were powder coated. I can't see it hurting anything.
 
I completely coated the underside of my TR6 with a bed liner product. It is also used in marine applications. So far it has held up nicely.
 

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Elliot:
That looks great - how did you apply it? If you used a spray gun, what size nozzle did you use?
Thanks!
Roy
 
Used a roller that was supplied with the coating material.
I think a sprayer would have clogged up quickly because of the abrasive material mixed into the coating.
 
I would have never guessed - it really flowed nicely and looks smooth, excellent job! That encourages me to do the same with my BE whenever I get to that stage.
 
jackag91 said:
thanks for the feedback.

Elliot, I would love to see some more pictures of your cradle.

Here you go...
 

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Here's what I built to move the body around...
 

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My TF was coated many years ago with the old style undercoating that dealers sprayed on. Restoring the car back to original, the undercoating has to go! It is a nightmare to remove. The wooden floor boards, even though they were in good shape, I had to throw them away as the undercoating was near impossible to remove. Took over a week to clean it off the underside of just one fender using a commercial heat gun and horse hoof scraper and paint thinner. What a pain!
I will say, it preserved the car from any underside rust for near 57 years. The car only had one rust minor spot the size of a half dollar behind one running board bolt. The sheet metal under the coating looks like new when exposed, I've even found some of the original paint, MG Red, not faded in perfect condition covered by the undercoating, which proves that if applied properly, it works!
When I restored the wifes 72 B, I sprayed the underside with undercoating. It even helps insulate some of the road noise. Because of "Popular vote", it has not been a deterrent from her winning first and second place trophys at shows. Just saying, undercoating has it's place, which isn't on all cars. PJ
 
Hi. Give some thought to the Line"X" product. It's a sprayed on coating used in truck beds but can be applied in the colour of your choice, hard as nails and a fairly thin application. I've seen Jeep bodies (exterior) completely coated in the stuff.
Dave
 
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