What is best under seal

[wibbstar]

Hi just starting out on here . I have just got a 2004 fiat Ducato the underneath looks really clean I’m looking at under sealing it but unsure what to use as there are so may opinions ie waxoyl 10 year roof seal seem to be quite possative ? . Please can anyone shed some light on This thanks.

 

[Phill D]

Waxoyl along with others are good. Just be aware if you have a lot of plastic underneath then some of these reacr with some plastics.
I apply it with a brush rather than spray as far as possible to try to avoid excess over the plastic pipework etc that may be underneath.

 

[wibbstar]

Thanks just I heard that waxoyl can hold in if the underneath isn’t completely dry . I wouldn’t do it if I thought it was still wet of course

 

[Landy Andy]

I prefer Dinitrol

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[Richard n Ann]

Thanks just I heard that waxoyl can hold in if the underneath isn’t completely dry . I wouldn’t do it if I thought it was still wet of course

Correct it will flake off an old vehicle after about 2 years with more rot underneath. Dinitrol is the same and that's from personal experience with both. They maybe OK if you sandblast underneath to bare metal first.

I've use lithium grease for years with great results, it never sets just goes dirty with the consistency of cheese

Longest has been 12 years on my mum's vauxhall nova where there was bare metal under the bonnet, but our scooter rack is now nearly 7 years old and the grease is still there underneath and no signs of any rust.

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[robnchris]

How about ACF-50 applied with a HVLP spray gun.

 

[Richard n Ann]

How about ACF-50 applied with a HVLP spray gun.

You'll need a mortgage for that stuff. Used it on my bike and it's only like engine oil.. Really expensive engine oil

 

[Howard B]

You'll need a mortgage for that stuff. Used it on my bike and it's only like engine oil.. Really expensive engine oil

A little goes a long way though. Ill be doing mine again with ACF 50 in the next few weeks.

 

[CazPaul]

Correct it will flake off an old vehicle after about 2 years with more rot underneath. Dinitrol is the same and that's from personal experience with both. They maybe OK if you sandblast underneath to bare metal first.

I've use lithium grease for years with great results, it never sets just goes dirty with the consistency of cheese

Longest has been 12 years on my mum's vauxhall nova where there was bare metal under the bonnet, but our scooter rack is now nearly 7 years old and the grease is still there underneath and no signs of any rust.

Pardon our interruption...

Yes same recommendation here.

 

[robnchris]

You'll need a mortgage for that stuff. Used it on my bike and it's only like engine oil.. Really expensive engine oil

I buy it in the one litre bottle, £25 I coat all 6 of motor bikes every winter in it using a HVLP spray gun, I reckon I use less than 200ml to do the lot. so it works out very cheap.

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[wibbstar]

Thanks I’ll have to look a bit more as it’s wood and metal underneath.