Had a morning in the garage today and carried on with the preparation of the underside of the car working on the Centre section this time:

I also took a few photo's to show you the process. As mentioned in my previous post, the team at
RUSTBUSTER recommend to concentrate on all the joints and edges of the panels. First step is to give any grotty looking areas a good going over with the wire wheel to remove the surface rust and clean the area up:

Then I'm over painting with the 2 pack
Epoxy Mastic 121 (in Aluminium Colour) I'm trying to get the paint into the box sections as much as possible, to help with the rust prevention in the future:

I completed the centre section, and then because I had a bit of paint left, I also made a start on the front section:

I then made a start on the seam sealer. I've read various internet forums advising on what is the best procedure to use and decided for neatness I'd go with the masking tape option. As the name suggest, first you have to mask either side of the joints you wish to seal, so you can get that neat edge:

I've took a few photo's of the process in the rear nearside arch so you can see how it goes on:

With the aid of a caulking gun (as I'm using Polyurethane seam sealer, although you could do the same process with the paint on underseal) the first step is to fill the void you want to seal:

To ensure that the sealer is fully pushed into the seam, it is recommended to run over the seal with a paint stick:

The next step is to try & remove the masking tape, without getting it all over either you or the rest of the car.... not easy!

You're then left with a rather proud edge from the masking tape, so you then gently smooth the edge with your finger, after you dip it in some thinners (to stop the sealer from sticking to your fingers) giving you the final finish:

So after doing that for most of the seams I'd masked I realised I had half of the Seam sealer was left in the tube, and as It's Polyurethane it's curing as the air is getting to it, so rather than waste it, I decided to fill any of the other seams I could see.
Because I hadn't masked all of the other seams, I had to do it free-hand, and actually found that you could get results that look just as neat as with the masking tape, as long as you are careful, and give the edge of the sealant a good smooth down with your finger and a dab of thinners

:

It looks a little bit of a mess at the moment, but I'm sure when it's all nicely over painted it will look a lot better
Thanks for reading
