a question of definition

[Guest]

I'm puzzled...

Q1: I'm assuming that stove enamelling is not the same as powder coating (?) but what is the finish like and how durable is it? (... and will it chip?)

(Pre-planning a spot of tinkering!)

Q2: For either of the above processes, what level of preparation does the metal to be 'done' need to be in - just rubbed down or immaculate?

Good advice / experiences?

SRD

 

[Nick Moss]

From my experience with old cooking pans, baths and dog bowls stove enamelling chips easily. Powder coating gives a tough finish that can be satin or gloss. The powder coater should have blasting facilities to prepare the surface. Make sure that you get any bearing surfaced masked and put bolts in any threaded holes

 

[vitesse]

Stove enamelling; uses a "wet" paint ,formulated for the process,sprayed on using conventional spray gun or special electrostatic gun(gets in all areas,edges&corners),then "stoved" in an oven(either static or conveyerised).
Powder coating;uses polyester(normally)powdered paint sprayed on using an electrostatic gun(in both cases the paint medium acquires an electrical charge opposite to the component being painted,the paint appears almost as a "mist" which settles on the component.).Again,the item(s) are stoved,to melt and bond the powder particles and harden the coating.

Both require clean metal substrate(normally shotblasted) and a primer first.Not to be confused with single or two pack car body refinishing where at a much lower temperature the new ly finished vehicle is "stoved" to dry&harden the finish,also to speed up the job.