This option is when your chipper is working close to the sea or will be transported on a daily basis. The galvanized finish makes the trailer last longer. The Zinc corrodes 30 times slower than steel does, so trailers are better protected from rust and corrosion than standard spray painted trailers. Little stones jumps up while driving causing scratches on the trailer’s paint. This will make it rust quickly especially along the coastline. Hot dip galvanized trailers costs a little more initially but is more durable and lasts longer than standard spray painted trailers.