The RM is very similar to the Glasurit products. I talked to a BASF rep at a trade show and he said he would personally not pay the extra money for the Glasurit over the RM.
RM and Limco are Glasurits "base brands", much like OMNI or Nason is for others, fine if your looking to save some dollars, and are going to blow the car out down the road, but for a person ride I rather invest in the top end product as the solids and binders are in higher mix concentration, or quality
