Just as many competitive products have a wide range in quality levels, flexible PVC liners are no different. The critical component used in producing flexible vinyls are specialized chemicals called plasticizers. There are countless varieties of plasticizers that can make vinyl flexible but very few offer the attributes needed for the vinyl used in the drop-in liner industry. It is safe to assume that the plasticizers used in producing garden hoses, blood bags, food packaging, car interiors, and children’s toys offer different characteristics then the plasticizers in our liner materials and they need to be selected accordingly.
Witt Lining Systems has taken great care in selecting our Spectra Blue® PVC, Exceline® PVC, and Koroseal® PVC materials with the most suitable and highest performing plasticizers available. Among our considerations in this process were chemical resistance, temperature performance, hydrolysis, permanence, polymer compatibility and regulatory approvals. These factors have led us to choose more advanced plasticizers than the standard phthalates (DOP, DEHP and DINP) that other companies use. These general purpose alternatives are less expensive but they are also less robust and less effective in harsh environments. In addition, DOP is tightly regulated and when used in certain states, needs to be labeled as a potential carcinogen.
While we currently offer the most advanced liner materials in the industry, we also continue to work with our suppliers to follow the latest plasticizer developments. We do this to ensure that we continue to offer the best available products to our valued customers. Our message is that, when buying a liner, be selective because you get exactly what you pay for. Competitive liners may be less expensive, but it is quite possible that the plasticizer system and performance of the materials is inferior and the cheap price comes at the expensive of service life. Take the guess work out of choosing a drop in liner by insisting on the highest performing materials in the industry in a liner from Witt Lining Systems.