remove undercoating

[inline4]

what do you suggest as a method.

the donor floorpans are out of the car already

[Bambikiller240]

Originally posted by inline4

what do you suggest as a method.

the donor floorpans are out of the car already

A scraper and elbow grease. You can soften the undercoat with solvent, or application of heat from a heat gun.

Don't try to heat with a torch, you'll burn the undercoat.

[inline4]

solvent like what? acetone?

[Bambikiller240]

Originally posted by inline4

solvent like what? acetone?

too expensive.

Regular Paint Thinner will do just fine. Let soak in a bit then scrape

DO NOT USE HEAT AND SOLVENT!!!!

[inline4]

how long is the leadtime for por 15 to ship if i buy it? I'm gonna have it cleaned and prepped hopefully within the week. just no undercoat and I want to clean up the interior...

the floors are red and the car is mexican orange

[Bambikiller240]

Originally posted by inline4

how long is the leadtime for por 15 to ship if i buy it? I'm gonna have it cleaned and prepped hopefully within the week. just no undercoat and I want to clean up the interior...

the floors are red and the car is mexican orange

The POR Distributor in Sacramento can ship it within a day or two. UPS will take another couple of days to deliver it. Order a week ahead of time to be safe.

BTW, POR must be applied to BARE metal (applied over paint, it does NOTHING!) , properly prepared with "Marine CLean" and "Metal Ready". Both are products sold by POR. Order it all at once. Ask question of the distributor. They have lots of advice to help you.

[inline4]

so before i have the floors welded in should i strip it completely of paint?

[Bambikiller240]

Originally posted by inline4

so before i have the floors welded in should i strip it completely of paint?

Doesn't matter when you do it, so long as you DO it. Probably easier to do with the pans out of the car. Easier access and all that.

If you don't strip them and properly prepare them, you will be wasting your money on POR.

[inline4]

the por 15 distributors website advises against sanding but sandblasting, and acid is fine. what method should i use?

engine degreaser seems to be taking the asphalt off fine by the way.

[Bambikiller240]

I don't have access to sandblasting equipment and used a wire wheel on an electric drill motor. worked fine for me.

[inline4]

hey... after using por 15 on the bottom, should I use chassiscoat or should i undercoat with rubber.

if i undercoat, what else do i need to prep before spraying the rubber?

[Bambikiller240]

Originally posted by inline4

hey... after using por 15 on the bottom, should I use chassiscoat or should i undercoat with rubber.

if i undercoat, what else do i need to prep before spraying the rubber?

You can undercoat after the POR if you want to. Will help keep road noise down a bit. ChassisCoat is not "necessary" for the bottom unless you want to do it. POR and undercoat is enough. Let the POR dry for a week or more, then cleanand dry the surface and undercoat.

You should consider doing the POR to the interior as well because if the door weatherseals leak, water will get in and stay hidden under the carpet/floormatts for a long time and will rot the floors from the inside. I did inside and outside of the floorpans on my Z so I KNOW I won't be doing it again EVER!