Hammerite on the chassis

[peter m]

I am about to coat the rusty parts of the chassis with Hammerite, and had the following advice from the manufacturers:-

"Hammerite Metal Finish can be applied directly to rusted metal. However, for better, long-term protection we would advise that Hammerite No 1 Rustbeater (which is a rust inhibiting primer) is applied first, following guidelines below:-
Abrade surface to remove any loose flaking rust
Wash surface with hot soapy water
Rinse with fresh water and allow to dry
Apply No 1 Rustbeater and leave for 24 hours
Apply 2 coats of Hammerite Metal Finish, following instructions on the tin."

If you do not want to wash down the chassis, for obvious reasons, they then suggest wiping down with hammerite thinners.

Guess what I am doing this weekend ..

[WildfireS3]

Have fun and don't forget not to smoke! =

Did all that lot last weekend. Hammerite, Waxoyl, Evostick, Thinners. NAsty job.

[MartS1]

Have fun, i did the same all last weekend
Still trying to get the hammerite and rust treatment out of my hair and hands
Rewarding feeling when its done tho
I did cheat using a cool gadget from halfords....mail me for more info, saved me hours
Mart

[MartS1]

Is it a good idea to waxoyl over the hammerite then?
Did not think of doing that
Mart

[WildfireS3]

MartS1 said:

Is it a good idea to waxoyl over the hammerite then? Did not think of doing that Mart

IIRC Wayol is made by Hammerite. The Ultimate protection I ever did was on my mini rear subframe as forllows:

1/2 litre of Zinc anti rust primer, followed by Hammerite 3 coats, followed by Body Shoot (A thick anti chip pait, can definitly reccoemnd it) then Waxoyl. Took a day to do and the car has never been out in the wet since!

Ironic how things turn out.

[peter m]

My chassis has not been painted for ages, and lots of the white coating is coming off, so this will be a big job. I checked with hammerite to see if No1 rust beater was worth using, and it is.... So that is 3 coats plus the wax oil to be done.
Luckily the local Wilkinsons hardware store had both the No.1 primer and the hammerite at a very reasonable price.

[yellabelly]

MartS1 said:

I did cheat using a cool gadget from halfords....mail me for more info, saved me hours Mart

Come on then, let us in on the gadget you used ?

[pies]

Come on spill,cough etc

[marts1]

Halfords sell mini spray guns , it costs about £40 with all the cannisters of compressed air but it saves hours!
The spray gun is £20 and the cans of compressed air £5 a go!
You get a pretty accurate spray of paint so easy to control!
The anti rust just sprays on out the bottle but you have to thin down the hammerite with thinners ( one thinners to two paint) but the finish is good!
I found it very handy for getting to the hard to reach areas, the down side is you will have to give it a few coats but with the time it saves its well worth it
Mart

[yellabelly]

MartS1,
Wondered if they would do the job when I was wandering around our local store.
You can also thin the waxoyl 50/50 with white spirit to make it easier to apply.

[marts1]

Great I will do that then
Can you just buy one type of waxoil or are there different types
Mart

[gadgit]

Don't forget that hammerite is a bastard if you don't coat it properly. You must do all the coats within a reasonable time, as if you leave it overnight for exanple you can't recoat for SIX WEEKS ! YES SIX WEEKS.

Now, I tried to paint over after a couple of days, a bit that was not quite right, and it bubbles and flairs up so do bits at a time and get them right with the coats within a couple of hours, or you are knackered for six weeks.

It is vital that you wax over the paint. I did one bit and missed a bit with the wax and it goes spotty with rust within no time at all!

Hammerite tends to leave pin holes I have found, and this is why you must wax it when its gone off.

Its a long job to do the chassis as you can imagine.

Good luck.

gadgit.

[spivvy]

try por15 less preperation time goes on easy and sticks well just starting doing mine with this

basically clear rusts/grease etc
use an etching spray and paint
you can prime and top coat if you want but don't have to as it is out of sunlight

www.por15.com availabel from www.frosts.co.uk

Warning though you need to have a good respirator or plenty of fresh air as it is dangerous stuff
some pics here of work i did

http://homepage.ntlworld.com/a.bolards/tvr/Renovation/renovation.html

[marts1]

Thanks for the advise, i will do the waxoil thing tomorrow then
When spraying i gave the chassis about 6 coats with the spray gun, i think that will be enough

[peter m]

Work may be slow tomorrow due to the ale consumed tonight.........

[lordb]

spivvy said:

try por15 less preperation time goes on easy and sticks www.por15.com availabel from www.frosts.co.uk

......gets my vote as the best stuff....comes in colours too!

[mel-S3]

gadgit said:

It is vital that you wax over the paint. I did one bit and missed a bit with the wax and it goes spotty with rust within no time at all! gadgit.

Tend to agree with this, also i have found that Hammerite tents to chip rather easily.

Por 15 seems good stuff, also Epoxy Mastic from www.rust.co.uk which I used. I made sure by using a rust converter first and then used the black epoxy mastic, finally a red top coat to try and match the original chassis.

Always a good idea to back everything up with wax oil.

[ratman]

mel-S3. Tell me how did you get on with a match for the original red chassis colour. I know Frost do a Ford red paint but is this a good match or are there closer ones? I also am about to contemplate doing the chassis with POR 15 - it must be that time of year.

[HeyAndy]

My Chasis needs some treatment and will become my winter project. Is the treatment effective depending on how good or bad the rust actually is provided there are no holes?

[RichardR]

spivvy said:

plenty of fresh air as it is dangerous stuff some pics here of work i did http://homepage.ntlworld.com/a.bolards/tvr/Renovation/renovation.html

Spivvy,

The link didn't work, but this one seems ok:

http://homepage.ntlworld.com/a.bolards/tvr/html/renovation.html