Por-15

vwmoparguy, I've used POR-15 on two different cars and was very happy with results. I use it under the car, in the trunk, on the floor pans, inside the doors, and on suspension components and brackets. I've always brushed it on, it flows out well and it looks great.

Here's how I prep the underside of the car before brushing on POR-15:

1. Get the car up on jack stands as high as you safely can outside on driveway or in your garage.

2. Clean off all dirt, mud and grease. I apply a heavy duty cleaner, (Green or Purple cleaner). BE SAFE and protect your skin and eyes!

3. Hose off under side of car, use a pressure washer if you have one. Let the car air dry. Inspect your cleaning job and make sure you got all the dirt and grease. Repeat as necessary.

4. Remove lose undercoating with a scrapper. Hopefully, it only has original undercoat. It someone undercoated (spray can) over rust you need to remove that stuff because it doesn't stop rust! Don't forget to do inside the rear wheel wells. DO NOT remove factory undercoat unless there is rust under it.

5. Remove loose rust with wire brush or wire wheel on a grinder or drill. Again BE SAFE and protect your skin and eyes.

6. Use metal ready on smooth surfaces, follow directions. Let it dry good before moving on to next step.

7. Brush on POR-15, again follow directions on product. Protect your eyes and skin, if you get it on your skin it will not come off with soap and water.

8. In areas where you have good factory undercoat I topcoat with POR-15. In the wheel wells I only paint areas that I removed factory undercoat, then when POR-15 is "tacky" I spray a light coating of "undercoat in a can" inside wheel wells to give it the factory look.

Have fun...this is a very messy job. Do this over a weekend if you can. Pick a time when the weather is sunny and warm because you will get wet.