you can if you want to but i would not susgest it because then you will have problems under the car and no one will touch it
Undercoating is a waterproof coating applied to cars' undersides to prevent them from rusting. The parts under your car are also vulnerable to damage from the elements (especially in north climates), oil, tar, and items that fly up from the road.
Short answer, NO you do not NEED undercoating.
It will depend on how much undercoating you are wanting to rubberize.
No.
Do you know the expression, 'Don't tar everyone with the same brush'!
starting at $150
according to the info i read on the back of my can of undercoating, it only takes 10 minutes. I'd give it a 1/2 hr myself.
Kerosene works very well and will not harm the windshield. Brush it on and let sit for a minute, then wipe the tar off. Wash thoroughly with alcohol.
Absolutely, positively not. The manufacture dips your entire car in a electrophoretic bath about 5 or 6 times to coat every nook and cranny. It is then baked in a dust free sun room. All the protection your car will need it gets when it is built. All you are doing by adding undercoating is adding about 50 pounds of tar-based gunk to the underside of your car. That gunk will trap dirt and moisture. Don't fall for the undercoating myth.
Brush on latex basement paint will cote the area without problem if the tar is stable and not subject to high temperatures.
No, undercoating should last for years.
Maybe so you can see where you need to patch it up... maybe...