Product description: VINNOL® H 5/50 A (LL 4311) is a terpolymer of vinyl chloride (VC), vinyl acetate (VAc) and vinyl alcohol (VOH). Its main use is as a binder for surface coating compounds and printing inks.

Properties: VINNOL® H 5/50 A (LL 4311) is a thermoplastic, physically drying, binder that forms a film when the solvent contained in the formulation has evaporated. Like all VC copolymers, VINNOL® H 5/50 A (LL 4311) is characterized by excellent toughness, permanent flexibility, abrasion resistance, low swelling in the presence of water, and low gas permeability. Films of VINNOL® H 5/50 A (LL 4311) are highly resistant to water. They also show excellent resistance to oil, grease, diluted aqueous acids, alkaline and saline solutions. VINNOL® H 5/50 A (LL 4311) is resistant to aliphatic hydrocarbons, such as white spirit, and to alcohols.

Special features: VINNOL® H 5/50 A (LL 4311) contains approx. 2% free hydroxyl groups and can therefore also be used in reactive coating and ink systems. For example it may be crosslinked with isocyanates, epoxy or melamine resins.

Application: Typical applications for VINNOL® H 5/50 A (LL 4311):

• Primers
• Printing inks
• Intermediate coatings
• Two-pack coating systems
• Baking finishes
• Adhesives

Information provided by Wacker Chemie AG.