Welcome to the site!! I always use Tri-City plating here in the US. They can re-chrome your bumpers or they will furnish a good solid core (cores aren't very expensive). If you plan to buy a nice driver quality bumper from the US I would just get a new re-chromed one from Tri City since you'll have to pay for shipping either way you may as well get something that will last forever!! When I get a newly re-chromed bumper from Tri City I always (immediately) coat the backside with brush on undercoat. The majority of bumper corrosion starts on the backside because that's where all the road salts, dirt, water, etc hits as the wheels rotate.
Tri-City Plating Co. Inc.
Treblig
