Underseal

[amcm1]

i have an import due to arrive in a few weeks and would like to get it fully treated underneath before its mot but I'm unsure what products would be best suitable as I've only ever used waxoyl in the past and would prefer to stay away from it apart from maybe inside cavities.

With the car being white I would like to continue with white on the underside and inside the arches and had seen white stonechip, can anybody recommend a type to use or what process to use before and after the application of it? Or is it a case of using a different coloured under seal and painting it white over the top?

I'll be using tetrosyl chassis paint for suspension arms and subframe etc, from having used it before I found it easy to use and leave a nice and durable finish, or is there anything better suited?

I know some people will question using white but the car won't do a lot of miles, would be easy to see any rust occurring underneath before it gets serious and would like to leave it with more of a factory finish.

For inside any cavities such as chassis legs and sills I was just going to use waxoyl.

If anyone can recommend products, processes to use it would be greatly appreciated.

 

[Burt2000]

To keep it simple, get Jonny at A.I Autosport to underseal it for you with white Gravitex.

 

[EP82JM]

I used white stone chip on my skyline for the inner arches, took ****ing ages though and needed good prep etc, came up well though

 

[amcm1]

To keep it simple, get Jonny at A.I Autosport to underseal it for you with white Gravitex.

Would prefer to do it myself, have all the tools here to do it, an empty shed and a lot of dark nights over the winter to take my time at it

 

[amcm1]

I used white stone chip on my skyline for the inner arches, took ****ing ages though and needed good prep etc, came up well though

View attachment 130343

That's the kind of finish I'd like, what stonechip did you use?

 

[Woodcutter]

Dinitrol 4941 is the best treatment product, but it's black.

 

[Eager]

i used por15. its pretty awesome and very tough, dont get it on your paws, it is a complete hallion to shift, i had to use scothbrite in end

 

[weeloaney]

Get upol Raptor, it's original purpose is a truck bed liner but it is basically extremely tough stonechip.

Get the tintable version which comes semi clear/milky, then get some cheap white car paint and mix it is. Doesn't take much to colour it.

 

[Neil_M]

I'd highly recommend Bilt Hamber's range of products. Rust Removal | Prevention | Anti-Corrosion Treatments | Rust Converters - Bilt Hamber

I've used their products on an import Impreza with great success (see below).

That's based on you want to seal what is currently there, some of the other products mentioned are a colour coat or fancy paint. It depends on your aim.

I love this photo...

I was starting into undersealing the car.

The products I was using...

Rear spoiler removed, this was to reseal the spoiler, check for rust and prevent any rattles from starting.

And fitted again.

I polished up the rear muffler.