11.7 - 11.8

metal finishes painting

cellulose paints

laquers - non ferous metals

polishing metals

liquid form

a wax bar

advantages of dip coating

makes the metal more comfortable to hold

protects the metal from moisture

dip coating step by step

clean work

switch on fluidising tank

heat the work slowly to degrees

dip work into powdered plastic for 5-10 secs

let it cool for at least 15 mins

what is galvanising

dipping metal into a bath of molten zinc at 460 degrees

finishing woods

paint

polyurethane varnish

preservative stains

what is paint used for

inside and outside use

what is polyurethane varnish used for

toys it is heat proof and can take knocks well

what are preservative stains used for

to colour the wood

how to finish plastics

filing or wet and dry paper