is there any underseal u can buy to use via a compressor gun rather than a brush?

 

Aye there is bud.
I believe Wurth do a very good one, the can literally just screws onto the bottom of your compressor gun.

If you can get hold of a Wurth rep or stockist in your area.

 

I used schutz sprayable underseal on mine.

 

3M do good stuff aswell try a car paint shop autofactors or some sort they will stock it

 

Go to your local body shop suppliers ,soudol do a good one ,either one to paint over or a bitumen based one

 

I use Schultz underseal and Waxoyl underseal too.

For the waxoyl I use a Schultz gun as it's quite goopy and thick. For the "rubberised" stonechip type stuff I use a cheap suction fed spray gun set on full - It opens enough to get the paint thru and give a nice even coating. The best thing is that the gun doesn't need cleaning after (providing you are only using it for underseal) as the paint doesn't set inside it - even after a few month

 

As said all paint suppliers do the cans of it for using with a compressor!! with the schutz type u can get the metal gun for them or u can get disposable ones too so u dont have to worry about cleaning them!!! Makes it a hell of a lot easier doing it that way and u get a nicer finish!!