Apparatus and processes for applying a coating to roll formed products

A system for processing an associated product having a central web portion having on a side thereof a bent region, the bent region comprising a flange portion and a return member, the flange portion extending from the central web portion and carrying the return member on an end thereof, the system comprising:

• a curing chamber comprising an input opening and an exit opening, the curing chamber being configured to permit the associated product carrying a curable material to move therethrough by receiving the associated product into the input opening and passing the associated product from the curing chamber to the exit opening;
• a first curing light source generating a first curing light beam directed from the first curing light source to a first portion of the associated product for curing a first portion of the curable material carried on a first side of the return member of the associated product within the curing chamber by directing a first curing light beam from a first curing light source to the first side of the return member of the associated product;
• and
• a first reflective surface directing a second curing light beam from the first reflective surface to a second portion of the associated product for curing a second portion of the curable material carried on a second side of the return member of the associated product opposite the first side of the return member of the associated product within the curing chamber by re-directing a second curing light beam from a first reflective surface to the second side of the return member of the associated product, the first reflective surface being located within a boundary of a physical extent of the associated product between the central web portion and the return member,
• wherein the return member creates a shadow of the first curing light beam on the second side of the return member and on the flange portion between the return member and the central web portion,
• wherein the second side of the return member is in the shadow of the first curing light beam directed from the first curing light source to the first side of the return member of the associated product,
• wherein the second side of the return member of the associated product is an area of the associated part inaccessible by direct illumination by the second curing light beam without the re-directing.