Underseal

[PLA]

As I was lying under the car scrapping off the useless protective coating to the sub frame, I thought why am I doing this when for the sake of a few quid TVR could have undersealed the car as part of the production. Did they put an underseal on the last Chimaeras produced? or in two years time are these owners going to be doing the same thing i.e lying on a cold concrete floor with an eye full of crap! and covered with waxoyl.

[19560]

I hope not, it's better to use a good epoxy mastic paint (better protection and easier to apply than Hammerite) such as the paint from www.rust.co.uk .

[ABBTVR]

Better still Hot Galvanise the bloody thing, Ok may add perhaps £2-300 quid on purchase price (IMHO). Just think about 15 years of contentment knowing that your prised possession is not rusting away.

Big Al.

And do the wish bones etc while there at it!

[19560]

How are you going to galvanise a car with the body on?

[ABBTVR]

Sorry, I meant for TVR to Hot Galvanize prior to assembly. Hot dip the whole chassis!
Sorry again, just dreaming!

Big Al.

>> Edited by ABBTVR (moderator) on Tuesday 18th February 17:12

[RCA]

19560 said: How are you going to galvanise a car with the body on?

It says might add £2-300 on the purchase price!!!! Does this not mean that TVR do it before the body goes on????!!!!


Edited to say bugger Al you beat me too it!!!!


>> Edited by RCA on Monday 17th February 21:03

[shpub]

ABBTVR said: Sorry, I meant for TVR to Hot Galvanize prior to assembly. Hot dip the whole cassis!
Sorry again, just dreaming!

Big Al.

Also known to distort space frame chassis and render them scrap....

[ABBTVR]

shpub said:
Also known to distort space frame chassis and render them scrap....

Thanks Steve, makes sense,
OK, I’ll settle for a heavy Zinc and Passivate coating (processing temp I think is about the same as hot water). But surly there must be some form of coating in this day and age, that is durable, resilient and doesn’t need replacing every couple of years.

Big Al.

[MajorClanger]

There's more than one way to crack a nut. Hot Dip Galvanising would be a preferred option and could (in theory) be achieved on a space frame by using pregalvanised tubing and then fabricating. Unfortunately it takes a bit of preparation to remove the galvanisation from the joint areas prior to welding along with fume extraction (which should be used anyway). The resulting weld joint can then be cold/spray galvanised.

But Cold Galvanising in its own right would be a viable option, relatively cheap, easy to apply, give added value to the car (to those of us who buy them second hand!) and reduce the amount of pre-winter fettling required... AND stop the darn thing rusting (although nothing will be 100% effective and will still require some periodic maintenance).

My 4 year old Chim is just up to get some new wishbones and I'm berd if I'm going to put OEM ones back on if Peninsula's replacement ones are any good.

MC

[PLA]

What is the best and most practical solution then? Wire brushing flaking paint and rust, priming with good rust preventative primer, finishing with two coats of Hammerite and waxoyl to stop further stone chips?

[griff2be]

I put a good thick coat of stone chip paint over the top of the de-rusted, re painted chassis tubes, then waxoyl over that. I only needed to do this for the outriggers on mine.

[19560]

That's good but an epoxy mastic paint (as mentioned above) is better and considering the time that this takes it's worth the extra money.