View Full Version : Getting a chassis galvanised in Brisbane
WayneHall
17th March 2024, 08:10 AM
Hi all
I'm at the stage now (welding done) with my 1958 109" (less a few inches) chassis where I need to make a decision about whether to get the chassis galvanised.  I'm hoping readers might be able to recommend firms to approach for a quote.
I'm located in Brisbane - any recommendations for the greater Brisbane area would be very welcome.
Thoughts on galvanising more generally also welcome.
Thanks
Wayne
V8Ian
17th March 2024, 09:24 AM
The size will restrict options. Industrial Galvanizing at Carole Park are the best in town for large pieces. 
Avoid the mob at Richlands.
Tins
17th March 2024, 09:30 AM
The size will restrict options. Industrial Galvanizing at Carole Park are the best in town for large pieces. 
They've got a place at Pinkemba or somewhere as well, don't they? Seem to remember seeing one.
S3ute
17th March 2024, 10:19 AM
They've got a place at Pinkemba or somewhere as well, don't they? Seem to remember seeing one.
Yes.
When I went to Pinkenba to get a quote on getting all the galvanized bits replated on my 88" they redirected me to their Carole Park operation. Apparently they were better at handling smaller parts which won't apply for a chassis alone.
They did an OK job and I only had the one small part (tailgate pigtail) go missing which was pretty good all considered. There is a minimum charge and weight and as it happened I could have done a second truck as part of it - cost about $400 from memory.
Cheers,
Neil
B.S.F.
18th March 2024, 06:11 PM
Yes.
When I went to Pinkenba to get a quote on getting all the galvanized bits replated on my 88" they redirected me to their Carole Park operation. Apparently they were better at handling smaller parts which won't apply for a chassis alone.
They did an OK job and I only had the one small part (tailgate pigtail) go missing which was pretty good all considered. There is a minimum charge and weight and as it happened I could have done a second truck as part of it - cost about $400 from memory.
Cheers,
Neil
Did the chassis get distorted at all, or do only firewalls get distorted ?
Note: Parroting, not speaking from personal experience.
.W.
whitehillbilly64
18th March 2024, 07:29 PM
I chatted to a guy last year.
He worked in the Military and told me the Pile of Galvanized good Perentie Chassis's was the same size as the bent non usable ones.
If the company doing it heats the chassis before dipping, less distortion will occur.
I toyed with the idea of getting my S3 SWB done. Decided against it after I had my 5 rims done but I should have checked them for roundness before sending them off.,
I think the Brisbane factory they went to has closed down.
Rims were $12 each, chassis being around $220.
whitehillbilly
WayneHall
23rd March 2024, 07:57 AM
Hi everyone
Thanks for the advice - I reached out to the suggested companies and got pricing back from one of them: $3.86/kg + GST for Hollow Structural Steel 3D fabs charged on the total weight post galvanising. They suggested adding 7-10% to the pre-galvanising weight.
So next question is, how much does a 1958 109 chassis weigh?  Does anyone have this information?
Thanks
Wayne
scarry
23rd March 2024, 07:52 PM
I had a heap of new large steel frames galvanised at the Carole Park operation,recently,by a contractor that also made the frames,and it was not the best quality.
But maybe that is the way it is these days.Around some of the welds the gal did not seem to be 100%,and thin along some of the edges.
Most of the steel was 125PFC girders.
Slunnie
23rd March 2024, 08:12 PM
He worked in the Military and told me the Pile of Galvanized good Perentie Chassis's was the same size as the bent non usable ones.
That's a really bad strike rate. Sounds like galvanising the chassis is very high risk.
BradC
23rd March 2024, 09:55 PM
I pulled some bits of my grandfathers caravan, stripped and blasted them ready for galvanising and when I got to the place they wouldn't do it. Said given the construction and structure they were almost guaranteed to warp. I appreciated the honesty.
I painted them instead.
V8Ian
24th March 2024, 12:33 AM
Investigate Jotun inorganic zinc industrial coating. When I worked at the fabrication company, the main focus was on the mining sector, including coal, a highly corrosive product. The Jotun product was specified for most of this work.
Tins
24th March 2024, 07:40 AM
That's a really bad strike rate. Sounds like galvanising the chassis is very high risk.
The Army must have changed their tolerances since I was in....
S3ute
2nd April 2024, 05:50 PM
Did the chassis get distorted at all, or do only firewalls get distorted ?
Note: Parroting, not speaking from personal experience.
.W.
Hello again - sorry for the delay as I hadn't noticed the question until now.
I didn't get either the chassis or firewall treated - so, can't give an answer. 
What was treated - about 80 parts - came up quite well.
Cheers,
Neil
5380
3rd April 2024, 12:07 AM
Investigate Jotun inorganic zinc industrial coating. When I worked at the fabrication company, the main focus was on the mining sector, including coal, a highly corrosive product. The Jotun product was specified for most of this work.
  
As V8Ian says, spray on zinc rich coatings are a safer bet.  Modern zinc based coatings are very tough and give excellent corrosion protection.
Also keep away from the surf driving so loved by advertising agencies!!
Galvanizing box section steel structures is a very specialised task.  
 5380.
akelly
4th April 2024, 06:12 AM
"the military" didn't build the perentie so what would some dude who "worked in the military" know about this? Not saying he didn't tell you this, but there is absolutely zero likelihood that this is true. Thousands of boat trailers are galvanised every year, you're telling me every second one is bent and unusable?
I chatted to a guy last year.
He worked in the Military and told me the Pile of Galvanized good Perentie Chassis's was the same size as the bent non usable ones.
If the company doing it heats the chassis before dipping, less distortion will occur.
I toyed with the idea of getting my S3 SWB done. Decided against it after I had my 5 rims done but I should have checked them for roundness before sending them off.,
I think the Brisbane factory they went to has closed down.
Rims were $12 each, chassis being around $220.
whitehillbilly
akelly
4th April 2024, 06:15 AM
I had a set of series rims sand blasted and hot zinc sprayed about 12yrs ago, every one of them has rust stains coming from the seams. Not a lot, but it is there. These are rims that have never been on a car, just in dry storage. I wouldn't bother with it again, just paint would have been as good if not better.
As V8Ian says, spray on zinc rich coatings are a safer bet.  Modern zinc based coatings are very tough and give excellent corrosion protection.
Also keep away from the surf driving so loved by advertising agencies!!
Galvanizing box section steel structures is a very specialised task.  
 5380.
V8Ian
4th April 2024, 09:30 AM
I had a set of series rims sand blasted and hot zinc sprayed about 12yrs ago, every one of them has rust stains coming from the seams. Not a lot, but it is there. These are rims that have never been on a car, just in dry storage. I wouldn't bother with it again, just paint would have been as good if not better.
Inorganic zinc coating is totally different to hot zinc spraying.
5380
6th April 2024, 10:21 PM
I had a set of series rims sand blasted and hot zinc sprayed about 12yrs ago, every one of them has rust stains coming from the seams. Not a lot, but it is there. These are rims that have never been on a car, just in dry storage. I wouldn't bother with it again, just paint would have been as good if not better.
   
I am talking about zinc based industrial paints. Even cold gal in a rattle can will give much better protection than thin zinc plating.They give  very effective corrosion control. Sorry for any confusion created. 5380.
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