Repainting a Simplex

[ianmac]

I Inherited a Simplex about 10 years ago and was always worried about stripping the thing and putting it back together as i may not know how but i dont think that would be a problem now


can anyone suggest the best way to remove the paint (notice i didnt say the easiest ;D). ?

Repainting is then needed so what brands of paint/type so i use for the repainting. ie Etch primer and paint.

What methods do you prefere for cleaning the surfaces of the metals beofre repainting

Ian

[alanstepney]

Treat yourself to "How (not) to paint a locomotive", by Chris Vine.
It contains a mass of information and the end result is superb.

Of course, there are other ways, but I hesitate to say better ones.

[mutley]

Hi Ian
A good grit blast to remove the old paint, two pack etch primer from Phoenix Precision paints followed by colored enamel of your choice from the same supplier. At least that's how I did the last one for a mate. Don't use acrylic paints they don't appear durable enough to take the knocks and bumps and go soft with heat. I have an engine I painted with acrylic and now awaits its second coat of paint within a year!

Andy

[baggo]

alanstepney said:

Treat yourself to "How (not) to paint a locomotive", by Chris Vine.
It contains a mass of information and the end result is superb.

Worth every penny

I've been experimenting with U-Pol acid #8 etch primer (suggested in Chris's book) and it seems to work very well and is easy to apply. Much easier to use than the 2 part stuff and you don't need special thinners for cleaning up afterwards. Comes in 450ml aerosol or 1 litre tins. I've only used the aerosol so far but it's a bit wasteful for small parts so I'm going to get a 1 litre tin and try spraying that with the airbrush.

I degrease with POR15 Marine Clean then a final wipe over with cellulose thinners before priming.

If you don't want to resort to grit blasting to remove the old paint use a stripper such as Nitromors.

John

[the_viffer]

While we are on the subject of paint removal has anyone recommendations for getting black (non-hammer finish) hammerite off brass?

[circlip]

Ketone??

[the_viffer]

As in MEK?

My upbringing causes me problems here "ketone" is a term with a very precise but useless for current purposes definition in the field of chemistry ( en.wikipedia.org/wiki/Ketone if you find it difficult to sleep).

The only paint solventy thing I can think of with ketone in the name is MEK ie methyl ethyl ketone (crosses himself for using a very old and bad name for it) and the only other ketone having much home solvent exposure would be acetone (another bad name).

I'm sorry to be even denser than usual and thank you kindly for the response but if you could expand a little more it would be great. In any event I expect we have some acetone and some MEK around and I'll certainly give them a go so thanls for the idea.

[the_viffer]

Bad words. We don't have any MEK kicking around. The Gruppenfuehrer has left her job and can't filch any for me, and she says in view of the potential for using it in making illicit drugs ordering a couple of winchesters of it are likely to have bill kicking my door down at 3am.

[Noddy]

Seem to vaguely remember "Acetone" being a ketone. Could be a good place to start

(oops, sorry Viffer, just re read your post, and I can't even remember "acetone's" proper name)

Methylene chloride disolves most things organic, but it's not pleasant to use, and turns to phosgene if it or the fumes get too hot (e.g. getting drawn through a cigarette or pipe).

Chloroform disolves most things rubbery (including chewing gum) but you won't get that easily

Keith

[the_viffer]

Cheers Keith

Time was and not so long ago Fisherman's Friend sweets had chloroform in them. I was only asking the Erin the other day when they would have been reformulated.

In IUPAC MEK and acetone are butanone and propanone; never heard anyone call them that tho.

Nitromors has a good load of DCM in it but doesn't seem to shift long cured Hammerite.

Oh well more experimentation in 526 days!

[Noddy]

The places which use lots of di chloro methane are blacktop (tarmac) labs, unfortunately I'm out of contact with the lab managers who i used to know, otherwise i probably could have put you in touch.

Keith

[circlip]

Sorry for the delayed reply Viff, yes I meant MEK. Don't know what I'll do when my tin is depleted, bloody kids, we grown ups can't play with our toys anymore thanks to the stupid little persons. Not only are we having to teach them how to do basics, but we're having to do it with reduced resources, can't even get a tin of Ether to home brew diesel (IC) anymore. Saving grace is though how we've bu**erd up the planet with greenhouse gases, that'll give them something to moan about for a few years, they might even learn how to fit a 13amp plug correctly to run the air purifiers. Regards Ian.

[freddo]

You asked the "easiest" way, Ian. Leaving aside super solvents like Butyl cellosolve which dissolves a bit of everything including human skin (used to be known as "super water") the easiest way is to burn the paint off with a soft flame on a propane torch then clean up with steel wool or whatever you fancy.

Freddo

[ausdan]

In Aus, MEK is easy obtainable from the paint store (house paints) last time I brought 4ltr was abt $15 I think