paint advice

[derm]

is there any advantage or disadvantage to repainting a Cromoly / steel frame with powder coat rather than a good for layers of 2 part paint?

i am looking for longevity and toughness, rather than a 'pimp my ride' finnish


thanks


Derm

 

[yo-eddy]

read this thread as a starter for some info
http://www.retrobike.co.uk/forum/viewto ... 0&start=15

 

[derm]

thanks for that, i have been given a price of 65 sheets for a 2 pack strip and respray from a local sprayshop here in edinburgh. seem like a good deal to me.


they recommended 2 part rather than powder cote, but didnt say why.

ill let you know how i get on


cheers

Derm

 

[speedplay]

probably because they dont do powdercoating!!

As far as i know the downsides to powdercoating are :-

1 it weighs a little more :roll:

2 less colours available.

I have had frames powdercoated in the past (the mrs dad owns a garage and does my stuff for me) and the result is really tough.

 

[kaiser]

3. Generally the finish won't be as good.

But it is pretty bullet proof.

 

[Iwasgoodonce]

If you're not really after a concours finish, powder coat seems to be very tough and cheaper too!

 

[FairfaxPat]

paint

I watched an automotive TV show last night that showed the powder coat process and the powder coat guy said that nowadays they can get any color you want and it is a tougher, baked-on finish.

 

[scant]

as mentioned above, the only real downer with powder coat these days is the added weight.
i painted stripped a yeti once (powdercoated) & it took 3times longer than a normal spray painted frame. its noticeably tougher

 

[gump]

yep, powdercoat is tougher.

When I got a frame powdered locally, before they stripped they asked if it was already powdered as it means they need a chemical dip to remove. Normal wet paint/stove can be easily media blasted.

Though powder can get a really good finish (Rody is fine example), the normal local powdercoaters will not be as good a finish as typical wet. Not bad, but not as good.

 

[Anthony]

If you're looking for longevity and toughness, there's no doubt that powder-coating is far superior, as well as being cheaper. The reason why your frame painter (and incidentally £65 is good value for wet paint) advised against powder-coating will be partly that they can't do it themselves and partly that the worst examples of powder-coating are pretty bad. But my understanding is that it's not the paint that makes the difference but the standard of the preparation. Powder-coating companies are in business to coat industrial equipment to stop it going rusty, it doesn't have to look pretty. So their customers don't necessarily want to pay for a lavish level of care in getting the shot-blasting absolutely perfect. But if you take it to a powder coater and check with them that they'll shot blast it and smooth it sufficiently to produce a cycle-standard finish, you should be fine I'd have thought.

And the difference in weight is about 40 grammes.