Lotus Elan

Painting the chassis

PostPost by: englishmaninwales » Sun Jul 16, 2023 10:10 am

mbell wrote:POR_15 doesn't need under or top coating. It needs a rough and clean finish to adhere well, so its not very good on fresh metal.

It is also UV sensitive, that why people say it needs top coating. But even in Texas with very strong sunlight its not an issue for a chassis that doesn't get direct sunlight.


POR15 is best applied to bare metal using their system: Initial degreasing with ‘Marine Clean’ followed by POR phosphate etch coat which is washed off and then 2 coats POR15 paint, the second coat before the first has cured. All applied by brush, giving a hard durable coat with good adherence. As said UV not an issue for a chassis.

I applied this to my bare Caterham space frame (mix of mild steel and brazed joints) - 15 years ago and still looks good with good adherence and no corrosion.
Malcolm
1966 Elan S3 Coupe
1994 Caterham 7
englishmaninwales
Fourth Gear
Fourth Gear
 
Posts: 768
Joined: 26 Jul 2013
Location: Ruthin North Wales

PostPost by: BR04DAN » Tue Jul 18, 2023 3:48 pm

alan.barker wrote:I thought you had a new Lotus galvanised Chassis with your car.
Imho you would be better fitting that. No need to paint galvanised.
Alan
p.s. if you keep original Chassis get all dimensions checked. Plus around Engine brackets for no cracks and around Diff attachement points no cracks. These Chassis suffer from cracks over the years and fatige :?



Hi Alan, how are you, I hope alls well.

(Hopefully this is the correct Alan!)

Kind regards

Brendan
BR04DAN
New-tral
 
Posts: 1
Joined: 17 Jul 2023
Location: Rowlands Castle

PostPost by: alan.barker » Tue Jul 18, 2023 5:55 pm

Hi Brendan,
Just sent you pm
Cheers
Alan
Last edited by alan.barker on Wed Jul 19, 2023 3:55 pm, edited 1 time in total.
Alan.b Brittany 1972 elan sprint fhc Lagoon Blue 0460E
alan.barker
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 3766
Joined: 06 Dec 2008
Location: BRITTANY FRANCE

PostPost by: Spyder fan » Tue Jul 18, 2023 6:20 pm

Is that the correct Brendan…. Lol

:mrgreen:

Alan
Kindest regards

Alan Thomas
User avatar
Spyder fan
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 2853
Joined: 11 Jun 2009
Location: Kent country & Sussex seaside UK

PostPost by: JonB » Thu Jul 20, 2023 5:20 pm

I'm Jon but I'll change it to Brendan if it helps.. ;)

Meanwhile, I think I have found the right stuff. It's called Bonda BON12248 Rust Primer and has a high zinc content (for what it's worth). It's a cellulose brushable paint that looks like the original factory red oxide when it dries. I plan to put a coat of this on, then go over it with satin black Tough Paint. I may finish with a bitumastic paint in highly exposed areas.

https://www.amazon.co.uk/dp/B005AT2LTO? ... ct_details

The stuff's not cheap, but I can see it going a long, long way.

I should say that there's not much rust on my chassis (subframe, cough cough) and I can get most of it off with a sanding disk on my angle grinder (who you have met before, I think). So, a little bit of welding round the front turrets and we're good to go. I will put the chassis aside then and begin restoration of the other parts of the car.
User avatar
JonB
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 2422
Joined: 14 Nov 2017
Location: South Herefordshire

PostPost by: alan.barker » Thu Jul 20, 2023 6:11 pm

If you change your name to Brendan you will need to change your car to a Ferrari like him.
Anyway how did you clean the inside of the Turrets,
A bit difficult with a Disc Sander. Unless the holes were very big lol.
Sandblaster maybe
Alan
Alan.b Brittany 1972 elan sprint fhc Lagoon Blue 0460E
alan.barker
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 3766
Joined: 06 Dec 2008
Location: BRITTANY FRANCE

PostPost by: Spyder fan » Thu Jul 20, 2023 6:19 pm

JonB wrote:I'm Jon but I'll change it to Brendan if it helps.. ;)



No it doesn’t help…… please pm me regarding your identity ( the identity of your car).
Kindest regards

Alan Thomas
User avatar
Spyder fan
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 2853
Joined: 11 Jun 2009
Location: Kent country & Sussex seaside UK

PostPost by: alan.barker » Wed Aug 02, 2023 1:26 pm

Hi Jon,
for the Vacuum chamber part of the original chassis how do you know it's not rusted inside. This can rust from moisture inside.
The galvanised chassis is new and treated. For me the galvanised chassis is a no brainer.
Alan
Alan.b Brittany 1972 elan sprint fhc Lagoon Blue 0460E
alan.barker
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 3766
Joined: 06 Dec 2008
Location: BRITTANY FRANCE

PostPost by: JonB » Sat Aug 12, 2023 4:27 pm

I don’t know, Alan. No one can know that. But, in case of problems, the LR is standing by.

Turrets, hmmm. Well I can get in there with a scraper. I just want to remove the underseal so I can give them a good coat of zinc primer.

I reported on my OMG thread that the turrets are now repaired, and to a very high standard. So I will proceed with the original frame for now.
User avatar
JonB
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 2422
Joined: 14 Nov 2017
Location: South Herefordshire

PostPost by: alan.barker » Sat Aug 12, 2023 4:40 pm

Good luck Jon you have a big job on your hands.
Maybe you could find a way to get an inhibitor liquid inside the Vacuum chamber of the Chassis to prevent any chance of problems. To cover your back so to speak.
Alan
Alan.b Brittany 1972 elan sprint fhc Lagoon Blue 0460E
alan.barker
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 3766
Joined: 06 Dec 2008
Location: BRITTANY FRANCE

PostPost by: JonB » Sat Aug 12, 2023 5:24 pm

Or go electromechanical!
User avatar
JonB
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 2422
Joined: 14 Nov 2017
Location: South Herefordshire

PostPost by: alan.barker » Sat Aug 12, 2023 5:55 pm

Don't forget it's first job is main chassis member. In true chapman style it had to do a second job and why not headlamp pods.
Just for the sake of it's first main job it needs rust inhibitor inside.
I like the headlamp vacuum system as an early warning of imminent chassis failure lol
Alan
Alan.b Brittany 1972 elan sprint fhc Lagoon Blue 0460E
alan.barker
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 3766
Joined: 06 Dec 2008
Location: BRITTANY FRANCE

PostPost by: ericbushby » Sat Aug 12, 2023 6:03 pm

Hi Alan
Following your mention of Chatman principles, don`t forget that pumping air out of the chassis also reduces it`s weight. :lol:
Eric in Burnley
1967 S3SE DHC
ericbushby
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 1386
Joined: 13 Jun 2011
Location: east lancashire

PostPost by: alan.barker » Sat Aug 12, 2023 6:36 pm

Well Eric he certainly had the "chat" lol.
Chubby was a good salesman
Alan
Alan.b Brittany 1972 elan sprint fhc Lagoon Blue 0460E
alan.barker
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 3766
Joined: 06 Dec 2008
Location: BRITTANY FRANCE

PostPost by: mikealdren » Sun Aug 13, 2023 7:42 am

JonB wrote:I'm Jon but I'll change it to Brendan if it helps.. ;)

Meanwhile, I think I have found the right stuff. It's called Bonda BON12248 Rust Primer and has a high zinc content (for what it's worth). It's a cellulose brushable paint that looks like the original factory red oxide when it dries. I plan to put a coat of this on, then go over it with satin black Tough Paint. I may finish with a bitumastic paint in highly exposed areas.

https://www.amazon.co.uk/dp/B005AT2LTO? ... ct_details

The stuff's not cheap, but I can see it going a long, long way.

I should say that there's not much rust on my chassis (subframe, cough cough) and I can get most of it off with a sanding disk on my angle grinder (who you have met before, I think). So, a little bit of welding round the front turrets and we're good to go. I will put the chassis aside then and begin restoration of the other parts of the car.
#
Hi Jon
I used to use 'Bondaprimer' many, many years ago and I used it over Kurust. It seemed good but I never kept the cars long enough to be sure. I'm using POR15 now.
I find that stiff wire brushes work very well with my angle grinder (the ones with twisted wire, not the softer crimped ones) for removing rust, they seem to get into nooks and crannies better than disks.
mikealdren
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 1224
Joined: 26 Aug 2006
Location: Surrey England
PreviousNext

Total Online:

Users browsing this forum: No registered users and 16 guests