<< what is the best way to strip the pain off of metal radiator covers? >>
Sand blasting is the fastest most effective way. If you have an air compressor
there are low cost units that will do the job nicely. Commercial units are just
a bit too hairy unless the technician can calm the velocity down to just get
the paint without distorting the metal grill work.
There is a wide choice of media, like walnut shells, plastic bits, glass beads
and such that can be used in the civiian models. I have used glass beads mostly
in my rig. HTH
<< Could you recommend what to buy in a sand blasting unit.
My blaster is a 25 year old unit made by ALC IIRC. I think the best source
would be the automotive tools section of a catalog seller, like Northern
Tools. The price has increased dramatically in the last few years: I paid about
$39 for mine and now they go for $50 <G>. Get a ceramic nozzle and air tip
appropriate to your compressor size because these are suction type units. The
basic parts can also be built into a home made blasting cabinet quite easily
and this will make recycling the media easier. For glass crafts you can use
silica sand (not round grain river sand) for all kinds of etching effects.
Glass beads will give similar effects on Plexiglas and Lexan. Blasters are
handy things to have around the shop if your projects are as unspecialized as
mine are. HTH