Can u Weld Ceramic Coated items?

jakriz Wolfsburg Wizard

560 posts · joined Sep 2002 · 21 Mar 2003, 11:53 pm

#33326

I have a 1.5 inch merged header & hideaway exhaust that I was going to have Ceramic coated, but I have it all welded up as 1 item as it returns as a centre mounted outlet like the Porsche Boxter & I find it easier to take on & off this way. I was told that I couldn't have the exhaust coated the same way inside & out as the header as the baffles wouldn't take it. So I thought that I could just cut the muffler off , have it done seperately, (outside only) then weld it back on after. It was mentioned by a friend that u couldn't weld something that has been Ceramic coated. Is this correct?
regards
Jak

Congratulations to Ben Durie for breaking the hillclimb record at Ringwood in his stroker beetle!

OvalGlen Custom Title Time!

1,361 posts · joined Aug 2002 · 22 Mar 2003, 1:59 am

#33338

you will get more informed welding advice than I,
but I believe that if you just grind back ceramic for the weld then no worries.
-
Could you weld Flange joint on so bolt together later?
-
Could you overlap the pipes so that just a few small stitches are required to secure later.?

Regards,Glenn>

Andy Andy\'s Adventures

2,820 posts · joined Nov 2002 · 22 Mar 2003, 9:02 am

#33352

When I had my exhaust coated I was assured it could be welded afterwards. Never tied it though.
http://www.hpcoatings.com/
:thumb

68AutoBug Beetle Restorer - Experience over 138\% - YIKES --

11,654 posts · joined Aug 2002 · 22 Mar 2003, 12:06 pm

#33372

Why are You having Your exhaust system Ceramic coated?
Stop Rust?
Make it last longer?
and is it expensive?
regards
Lee

- Helping keep Air Cooled VWs on the road - location: SCONE in the Upper Hunter Valley - Northern NSW 320 kms NNW of SYDNEY---

Baja Wes V6 Baja Pioneer

3,119 posts · joined Aug 2002 · 22 Mar 2003, 7:54 pm

#33423

From what I understood, the ceramic coating actually improved the weldability.

Best to check with whoever is going to coat it, as I am sure not all coatings would be the same. I have welded a ceramic coated muffler to an uncoated exhaust pipe before, and didn't have a problem.

Wes - www.offroadvw.net - 200HP Quad Cam V6 in a VW Baja - with climate control... 🙂
www.taylorcycles.com.au - My DH MTB racing brothers shop.

1303Steve Scirocco Rare

8,650 posts · joined Aug 2002 · 22 Mar 2003, 8:07 pm

#33427

Hi

My cermamic coated system has had a few leaks at the flanges and I welded them up no worries, it just destroys the coating in that area.

1302Steve

jakriz Wolfsburg Wizard

560 posts · joined Sep 2002 · 23 Mar 2003, 6:07 am

#33461

Thanks for that Steve, thats what I thought.
Jak

Congratulations to Ben Durie for breaking the hillclimb record at Ringwood in his stroker beetle!

vw54 Administrator Always Waiting 4 Friday

16,723 posts · joined Aug 2002 · 23 Mar 2003, 8:22 am

#33466

For a better welding job i suggest that you grind the coating off in the weld area first....

The ceramic coating will act like a slag and probally flow into the weld filler material and give a slag inclusion.
This will weaken the weld,

I read it on FACEBOOK so it must be true

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