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The all new DIO-Betalon PVA Film has all the strength and life-durability as the former Tufbell PVA Film. DIO-Betalon uses the same raw materials, machines, and technology that was used in making the Tufbell products. A floating rowcover of unprecedented strength and durability, made of high-tech, polyvinyl alcohol (PVA). PVA has unique absorption properties which allow moisture to freeze within the rowcover fibers and form a protective shield, like an igloo, over the crop. PVA is also breathable (35% permeable), allowing crop ventilation during the day. Water right through it, without need for removal. DIO-Betalon increases air and soil temperature by 5-10°F and leaf temperature by 2-6°, yet does not overheat in 90° weather. It allows 92-95% light transmittance. It can be floated on the crop, or laid on hoops or frames. The double-thick material is reinforced with nylon threads every 1 to prevent tears. It is additionally reinforced every meter (39) in all directions. Pieces can be sewn together with nylon thread to make a larger piece. Washable, easily repaired, anti-static, as well as chemical and light stable, DIO-Betalon lasts for many years and is the most durable rowcover on the market; material will shrink about 5% over time, though. Use Rowcover Clips to anchor the fabric to the ground.