Treating and removing rust, do I need this stuff?

[TroubledSoul]

I've asked the same Q on my project thread really, but thought I'd have a better shot at getting some info here.

To treat some rust on my E36 the plan currently is to wire brush, Kurust, then paint with Hammerite direct to metal.

Is there any point adding this stuff into the process before the Kurust?:
http://www.halfords.com/motoring/paints-body-repai...

I've not used it before, but wondered if I would get any benefit from doing so?

[TroubledSoul]

r11co said:

No. It is effectively the same as Kurust but gel rather than liquid.

I did wonder. However, since I will be laying on my back and doing this above me, the gel might be a better bet under the car. Kurust will drip like mad I reckon?

[TroubledSoul]

Dannbodge said:

Krust isn't very good apparently as it's water based and doesn't actually remove the rust properly.

Have a look at bilt hamber products. They are by far the best.

I would go back to bare metal then remove the rust using their deox gel. Then paint it with their electrox spray followed by some 3M Shutz underseal.

Never heard of any of those products but will look them up.

Why are they better than the Hammerite/Waxoil for rust proofing?

[TroubledSoul]

Had a look at the Bilt Hamber gear, buying the Electrox and the Deox. Curious though about the Waxoil spray, should be fine with that, no? I prefer a clear sealant so that I can keep a better eye on things.

[TroubledSoul]

Never heard of those either! I'm genuinely interested though in whether there's any real reason not to use the Waxoil spray (or the other Waxoil one). If I use that Electrox first then it really should suffice going on what I've read.

Interested to hear of any evidence to the contrary before I go ahead.

[TroubledSoul]

J4CKO said:

i find the best way to get rid of rust is to stick it on Ebay.

It's only minor in the grand scheme....

Db1904 said:

I would recomment the bilt hamber deox gel, used it on a MGB (so a good test!) and it did really good job, took it right back to clean, (if a bit pitted) steel! Better than i was expecting.

Nice! Cheers

[TroubledSoul]

I take it using the Hammerite paint over the Electrox primer will be fine though? I wanted to use the clear waxoil stuff as I'm a bit reluctant to cake it all in thick, sticky black underseal but it sounds like I may have to suck it up on that score.

[TroubledSoul]

Cheers, can't see most of your pics though, so not sure if there's a pic of the underseal you used?

[TroubledSoul]

Wow! That's great.

I might just be being silly trying to avoid a black underseal to be honest. The rest of the car is covered in it!!

I would quite like to remove it all, properly treat everything and then recover though. So clear would be the preference but maybe I should just bite the bullet and use something black.

I still don't know which product to buy though!

[TroubledSoul]

Are these underseals any good?

http://www.opieoils.co.uk/p-74042-valvoline-tectyl...

http://www.opieoils.co.uk/p-74039-valvoline-tectyl...

No longer bothered about having to use a black underseal. I just want it protected; for good.

[TroubledSoul]

Well I've actually got the Electrox, so that will do for rust proofing from the sounds of it, I just want a protective coating over the top of that now, so will I need the thick black tar stuff? More than happy to use it if I should, it's really not a job I want to do twice.

[TroubledSoul]

SuperHangOn said:

I'm not a fan of waxes. Its not hard to imagine moisture getting trapped behind once it starts to dry out.

POR15 is brilliant, follow the prep properly and that stuff it's not coming off in a hurry.

Yeah but isn't that something you'd use instead of Electrox? I have the Electrox now.

[TroubledSoul]

Christ, that reminds me of when you start looking for rust on the sills of MK2 MR2's! They look great from the outside!

[TroubledSoul]

Well I've got the wire cup brushes for the grinder now

So really just need to know which underseal to use. I'll probably choose from one of the two TACTYL and TACTYL 190 underseals as I can buy them from Opie with something else I need. I'm just that little bit sceptical about how effective a wax/bitumen solution that can be applied from an aersol really is?