I have been using POR-15 on my VWs and other vehicles for about 20 years
now. It is the go-to product for a lot of people I know with old vehicles.
Another long time user of POR-15 passed onto me a tip for getting the most
POR-15 out of a can.
Most important: DO NOT OPEN the POR-15 can by prying the lid off of the can.
You will need a small diameter nail or punch, two small diameter sheet metal
screws and two rubber washers that fit over the sheet metal screws.
First, turn the can of POR-15 over with the bottom of the can facing up.
Now, use a small diameter nail or punch and CAREFULLY make a small hole in
the flat part of the bottom of the can as close to the edge as possible. BE
CAREFUL when punching the holes in the can to not splatter, spill, spew or
spray the POR-15 on yourself and always wear rubber gloves and protective
eyewear. Make a second hole in the flat part of the bottom of the can
directly opposite from the first. Pour out the amount of POR-15 you need
into another container, wipe the can off and use the sheet metal screws and
rubber rubber washers to seal the holes in the can. DO NOT LEAVE THE CAN
OPEN while you are applying the POR-15. Store the can with the bottom facing
up so you can see the sheet metal screws and washers. If over time the sheet
metal screw will not tighten down snugly, use a slightly larger sheet metal
screw and washer. When done properly, this method seals the can well and
allows you to get the most out of every can (even the quart size can).
I have been using this technique for a number of years now and it works well
for me.
Also, when applying POR-15, follow the directions for surface preparation
and product use EXACTLY. In those cases where someone complains that POR-15
did not work, 99+% of the time it is because the directions were not
followed.
I always follow the directions for preparing the surface including using the
Metal Ready product. So far, POR-15 has not let me down.
Charlie
-----Original Message-----
From: Matthew Yip
Sent: Wednesday, December 17, 2014 11:36 AM
To: Volkswagen a2 16v discussion list
Subject: Re: [a2-16v-list] Rust Repair and Prevention
Holland is spot-on that POR-15 hardens quite impressively. I've found that
POR-15's cans are essentially a single-use item b/c it's impossible to open
the can after the product hardens thought. As a result, buy the absolute
smallest quantity you can find otherwise you'll have a very large and
expensive permanently-sealed can of POR-15 mocking you for the rest of
eternity.
On Wednesday, December 17, 2014 11:32 AM, Holland Phillips
<[email protected]> wrote:
I second Matthew's praises of POR-15.
I used it pre emptevily on the battery tray, as well as other places of my
'92 GTI 16V. The stuff gets hard as nails once it cures. A trick to
accelerate the cure rate of POR-15 is to mist the coated area with water.
Due to this fact, it is critical to carefully seal the container once
finished, and refrigerate if possible.
~HollandOn Dec 17, 2014 6:45 AM, "Matthew Yip" <[email protected]> wrote:
Battery trays as a whole are problematic, VW or otherwise - remember the
venerable VW Beetles that were well known for the gentle "woosh-woosh" sound
they made as they drove along with the battery bouncing gently off the
pavement after the battery tray (also the floor pan) rusted thru on those
cars.
The best method to arrest the existing rust is with POR-15 - I used in on a
Mk1 Slorocco and it seems to have actually stopped the rust which, on a car
that could rust in Arizona, is impressive. The challenge you'll face is
getting to the backside of the panel. I recall POR-15 produces an aerosol
and you could possibly use that with a "straw" to direct the paint onto the
backside of the battery tray.
Once you've done rust repair on the panel, I'd suggest using a plastic tray
of sorts to encase the bottom of the battery to prevent any acid run-off.
It doesn't have to be anything fancy, just a durable piece of plastic to
insulate the tray from the battery.
Matthew
On Wednesday, December 17, 2014 9:35 AM, Larry Velez <[email protected]>
wrote:
Hi 16Vers,
As I continue to (very) slowly work to revive my 16V GTI, I am starting to
clean things up a bit.
Any tips for how to repair and prevent rust in the engine bay. I know
battery trays are notorious for rust across many cars.
I don't have the skills to cut this out and replace it with new metal but I
do want to stop the rust if I can. Any suggestions?
https://www.dropbox.com/s/zqk43rl2c5e4k5u/2014-12-11%2007.37.53.jpg?dl=0
thanks,
Larry
91 GTI 16V
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