Chapas da carroceria

501-25-20 Body Repairs - General Information 501-25-20 DESCRIPTION AND OPERATION ‡ NOTE: Coated panels have a higher electrical resistance, but this can be compensated for by increasing the welding current by 10 - 20% . Resistance spot welding is particularly suitable for welding zinc-coated panels, because no widespread warming occurs. ‡ With electrolytically zinc-plated panels there is no need for any special preparation because the zinc coating does not need to be removed.