Seam Sealer

[Sprint95m]

Does anyone have any opinions on which seam sealer to use for car bodywork?

On the underside of my car I have used Tetrosyl Brushable Seam Sealer.
As per the instructions I have applied two coats (it definitely needs two coats) and,
while the finish is okay, it is not as good as what BL achieved in the 70s .

There does seem to be a plethora of options?
For around windows or door frames on buildings LM (low modulus) silicone is
employed because it adheres well and can safely expand/contract by over a third.
Something similar for car bodywork would be good......
Therefore I am wondering is anyone has any recommendations please,
whether it be for brushing on or applying from a caulking gun. 

 

Thanks,
Ian

 

[Steve 13-60]

I've just seam sealed the underside of my Herald rear tub after fitting new inner and outer arches. I used some stuff off eBay, see attached photo. Deffo only one coat needed as it's real thick snotty stuff but does brush on ok.

It dries off pretty quick too and is, of course, overpaintable.

I then sprayed it with stone chip followed with red rustoleum brush paint.

[Steve 13-60]

Regarding stuff in tubes, al silicon, either Tigerseal or Sikaflex is far better than silicon. Sikaflex is what is used to bond windows into campervans etc. Tiger seal is cheaper on eBay tho.

[Nick Jones]

I’ve used the Tetrosyl brushable stuff. I like it. Sticks like the proverbial (especially to me) is overpaintable, a seems to last ok. I’m also a big Tigerseal fan, amazing stuff - got engine mounts that are mostly Tigerseal.

[Escadrille Ecosse]

Tigerseal gets my vote too. Also used the Tetroseal brushable on the Spitfire. Seems to have lasted well.

Don't use silicone sealers. Paint won't adhere.

[andymcp]

+1 Tigerseal.  Anything that's good enough for Ivan (Shed Racing) is good enough for me...

[mattius]

Another for tiger seal, it also doubles as a pretty decent adhesive 

[Sprint95m]

Thanks for the replies.

Previously, I have used Tigerseal to stick things together but hadn't considered it for a seam sealer ......
man, it is hard to get off your skin! (The disposable gloves tore......)

Würth sell two automotive sealers, one of which looks suitable.
I have a trade account with them, so might try their Dichtfix the next time I place an order.
So far I haven't had any problems with any Würth product.
(Usefully they give free carriage on any size of order)
As a complete aside, Würth sell a really handy four in one ratcheting ring spanner, it has
10, 13, 17 and 19mm sizes.

Bilt Hamber also do a seam sealer but have no stock currently.
I have been impressed with the various products I have bought from them in the past.

 

Thanks
Ian