An innovative technology designed to deliver the proven durability and performance of traditional KYNAR® PVDF coatings. GAF Kymax Coating is an excellent barrier to plasticizer migration and is effective in preventing asphalt bleed-through. It is recommended whenever exceptional weatherability and/or reflectivity are required, whether the threat is algae, mildew, dirt, or industrial fallout (formerly known as United Coatings™ Kymax™ Coating).