Any one use POR-15 Rubberized Under Coating before?

[Kabasue]

Did a search found information about por-15, and found information about rubber undercoating, but nothing about por-15's rubber coating. Has any one used this POR-15 Rubberized Under Coating before?

1. Does the rubberized coating provided the same rust prevention as regular por-15?
2. Does the surface need to be prepped in the same way as regular por-15 (IE cleaned, and metal etched)?
3. Does the Rubberized Under Coating have the same UV sensitivity as the standard por-15.
4. Is this suitable for engine compartments. Air-cooled VWs can get quite warm will this stuff melt or worse catch on fire.
_________________
Remember to get your VW spayed or neutered
71 SB convertible (Finally Finished!)
73 Transporter (next project)
73 Westy with a 411 engine (Finally Finished)

[ryohey]

doesnt look like anyone used it. after reading about it on their site, it looks good. here are the directions for its use

PRODUCT DESCRIPTION:
POR-15 Rubberized Under Coating is a flexible, paintable, black
coating. It's an excellent moisture barrier for application over auto
underbody repairs and creates an effective sound barrier that reduces
vibration and deadens sound in wheel wells, quarter panels, fenders,
frames and undercarriages.
Directions for Use:
1. Remove all loose rust, dirt, grease and wax from surface to be coated
using POR-15 Marine Clean, diluting solution 5 parts water to 1 part Marine
Clean. Bare metal should be primed, using POR-15 for permanent rust protection.
2. Shake can well for at least 1 minute once mixing ball begins to move in can.
3. Spray from a distance of 12 -16 inches from surface applying in uniform
coats.
4. Allow coating to dry for 1 hour before touching. May recoat anytime if
necessary.
5. To prevent spray valve from clogging after use, turn can upside down
and spray for about 3 seconds or until free of material.

Hope this Helps. Maybe someone else will chime in
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69 bug restoration thread http://www.thesamba.com/vw/forum/viewtopic.php?t=387230&highlight=

[Paul Wright]

Yes. I have used it, but I have never kept any of the cars long enough to see if it really worked.
I have also used rustbullet and found it easier to use.
http://www.rustbullet.com/
_________________
I may not be good.......but I sure am slow!!

[Kabasue]

zombie thread!

I eventually did call the company and asked them directly. It does NOT have rust protection as por-15 paint. It is NOT UV sensitive as the por-15. Basically it's a spray on rubber with the por-15 logo. I plan to prep, and paint the underside of the buss with some rust bullet or por-15, then coat the underside with some spray on rubber to help protect it from road salt, and cut down on the noise. We will see how it goes over the years.
_________________
Remember to get your VW spayed or neutered
71 SB convertible (Finally Finished!)
73 Transporter (next project)
73 Westy with a 411 engine (Finally Finished)

[63litre]

Never knew that por 15 made undercoating too

[matt94gt]

Bump from the dead. Anyone else try this yet? I really want to freshen up the underside of my bus as some of the factory undercoat has peeled.
_________________
72' Sunroof Bus - Kansas Beige
http://www.vw-mplate.com/mplate-21257.htm

Build thread:
http://www.thesamba.com/vw/forum/viewtopic.php?p=7257521

[Gravenstein]

I just don't know about the rubberized undercoating. If you're living and driving in dry environments it's probably fine and I would opt for it for the sound deadening properties. In all other cases I would probably just stick with regular old por15 because the undercoating won't have the same expansion and contraction properties as your pan. This could create cavities between the undercoating and your beloved vehicle, potentially trapping water and leaving you blind to the formation of rust. Por15 is self healing and wouldn't be a pain to reapply in a few years if need be.

Also, when the undercoating gets dirty, it's gross and ugly. Personally, I like the glossy look of por15.

That being said, I would undercoat the fenders because rocks kicked up by your tires can ping the underside of your fenders and create star shaped cracks in the paint finish on the other side.

I'm doing this to my bug now!

Cheers!
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