Thank you for your question. I try to answer this without too much technical jargon. The products you mentioned contain polyethylene-acrylic acid which is still a polymer yet very different from what is used in the Optimum line. Polyethylene is the base in these products which is also used in candle making. The acrylic acid portion will provide substantivity which in turn results in durability versus just using polyehtylene based products.
The main difference with the polymers we use vs polyethylene-acrylics is that there is no cross-linking with polyethylene-acrylics. However, with the polymers we use, they will cross-link and cure within 24 hours to create a 3-dimensional matrix. This is valid for the Optimum Car Wax, Poli-Seal, and Opti-Seal. The latter cures much faster due to new technologies that we developed over the past two years.
Another benefit is cross-linking between layers so that if you add a layer of Opti-Seal or Optimum Car Wax on top of Opti-Seal, Poli-Seal, or Optimum Car Wax it wil bond to the previous layer(s). This can not be done with polyethylene-acrylics since there is no cross-linking capability in this technology.
The one advantage polyehtylene-acrylics offer is that since they are acidic by natue, they hold up better to acid rain, however, at the same time since they are acidic, they can cause minor etching of the paint. All and all, for the above reasons, our entire line is free of polyehtylene-acrylics and therefore all of the products in the Optimum line are compatible with each other.
