Underseal- what's the best?

Hiya
I've been given MOT advisories for slight corrosion on both rear seat belt anchorage areas and both rear suspension spring mounting areas. It's not bad but will probably fail at next year's MOT.
The MOT fella said it was slight and just required rubbing with a steel brush and then re-sealing.
I haven't had a look myself and will have to get a garage to do it for me :ohmy: I Know, but I don't have a garage or ramps or the space to do it myself
So my questions are:

What's the best sealant?
How much will I need for just these areas?

Cheers
Julie

You can get a can of Waxoil and hammerite from halfraulds for £8.99 I don't know how much if an area you have to do but this will cover quite a bit

Cheers Daniel

in my opinion.wickes hammered paint is better then hammerite,as for underseal,I think tetroysyl is a good product,as it is easier to apply then the waxoyl underseal,and is more durable,its more like the old school type underseal that sets fairly hard.Another paint you could try,which they say sets rock hard,and is very tough,is called por 15.available from frost restoration at rochdale,see their website for details,though it is on the dear side.

jimy wrote:
What's the best sealant?
How much will I need for just these areas?

Cheers
Julie

Best is subjective but I always use Hammerite underseal with added Waxoyl. Used it to do 3 cars in the last few years completely from front to back. My 1992 Pajero still has it on from when I did the same job in 2000. It does take a good few days to lose its tackiness so once applied leave it alone for a week. Any transfer on to your hands etc. is easily removed with petrol.

Check prices and buy it off ebay or Amazon, it can be twice the price in Halfords and so on.

If you have some (small areas) rust and can't shift it entirely (even with a rotary wire brush in a drill or Dremel etc.) you could prep the surface with something like Jenolite but some rust curers require up to 24 hours before over-coating. I tried Aquasteel curer on my Junior just a few months back which requires, and I quote, "A full 24hrs" before over painting. I hated waiting.

I hate the job cos the rust dust and bits get in hair, eyes, ears and other places.

What aboit going somewhere that offers a waxoil for you? Any in NWest or WYorks or is it easy to do with a big brush and goggles?