PowderCoat or HVLP wet paint

[Yellow Peril]

Having some parts repainted/powder coat but can not decide on spray or powder coat. Had my pannier racks powder coated sometime ago but the metal on metal rubbing has meant it started to peel quite quickly..

My question is would HVLP wet painting be more robust? I know down this way a lot of agricutural machinery is HVLP painted with very good results that last a long time with an excellent finish.

 

[ghost-rider]

I wud of sed powder coat was a harder finish than a wet coat, when you say your racks are peeling, if they are literally peeling i wud of sed that was a preperation problem as opposed to a metal on metal problem, i wud of sed they would wear thin or even through in the areas that are metal on metal, but not peel flake off

 

[jim123]

HVLP stands for High Volume Low Pressure, and it relates to the spray gun used not the paint itself. HVLP guns were introduced to help cut down emissions and wil not affect the paint performance.

It sounds like your powder coat job maybe has something not quite right in the surface preparation, or the bake temperature when curing the paint.

On balance I'd say that powder coat would be a surer bet in terms of durability, but only if the prep and curing are done to a good standard.

 

[Yellow Peril]

I am beginning to think the prep was poor or very poor, doubtful it the pannier rrails where taken back to bare metal before the powder coat was applied.

 

[Deleted account 190920001]

the powder coating wasn't done properly, if its pealing it was over baked. Sadly this happens all too often which is why I now use 2K paint again. If you get them blasted, etch primed and coated in 2k it wont be as good as a top notch powder coat but it will be loads better than an average or worse crap powder coat.

 

[Bendy toy]

Before powder coating the metal should shot blasted to bare metal. Steel/iron needs a zinc passivate undercoat. Aluminium a 2 pack etch primer. Any original chrome plate may have to be removed by a platers.

On pannier frames, a powder coat may eventually wear though but it should never peel off. Its likely the original job was not properly prepared. Maybe they didn't want to damage the original plating, but you may well have rust eating away under the powder coating.

A better bet would be to have the rack stripped of old powder coat and any chrome plate underneath. Then have it sating chromed or properly powder coated. To protect the metal to metal contact points, bond some thin aluminium wear patches over the carrier metal to protect the underlying finish.

The company I use has done a few jobs for me from steel tube pannier racks to alloy brake callipers and engine cases. All have been great but they know what they are doing.

 

[PureAdventure]

Before powder coating the metal should shot blasted to bare metal. Steel/iron needs a zinc passivate undercoat. Aluminium a 2 pack etch primer. Any original chrome plate may have to be removed by a platers.

On pannier frames, a powder coat may eventually wear though but it should never peel off. Its likely the original job was not properly prepared. Maybe they didn't want to damage the original plating, but you may well have rust eating away under the powder coating.

A better bet would be to have the rack stripped of old powder coat and any chrome plate underneath. Then have it sating chromed or properly powder coated. To protect the metal to metal contact points, bond some thin aluminium wear patches over the carrier metal to protect the underlying finish.

The company I use has done a few jobs for me from steel tube pannier racks to alloy brake callipers and engine cases. All have been great but they know what they are doing.

Who did you use if i may ask please?
Thanks

 

[Bendy toy]

I use
CJ Ward
Dallow Street
Burton on trent

01283536135

They offer low temperature stove enamel which looks great in metallic finish and powder coat that's best in a plain finish. The powder is the toughest but both beat paint by some margin.

They understand bikes & do a lot for restorers.

 

[PureAdventure]

Thank you !!!!

I use
CJ Ward
Dallow Street
Burton on trent

01283536135

They offer low temperature stove enamel which looks great in metallic finish and powder coat that's best in a plain finish. The powder is the toughest but both beat paint by some margin.

They understand bikes & do a lot for restorers.

Thank you !!!!