The right-hand glass panel which the chemist is holding is coated with a varnish based upon dehydrated castor oil and coumarone-indene resin. Incompatibility of the ingredients
has made the f i l m cloudy. The panel on the left was coated with the same varnish except that 5% of the resin was replaced with Nevillac.The mixture is now compatible and perfectly clear.
Nevillac" makes friends out of enemies in coating formulations O n e i m p o r t a n t f e a t u r e of N e v i l l a c , N e v i l l e Chemical C o m p a n y ' s family of hydroxy resins, is its value as a co-compatibilizing agent in the formulation of coatings. I t is inherently so highly compatible and soluble t h a t it acts as an effective agent in bringing normally unfriendly m a t e rials together into clear film. This characteristic generally pertains to its use with most elastomers, plasticizers, solvents and other resins. T h e r e are, however, several other good reasons for considering Nevillac as a valuable addi-
NEVILLE
tion to coatings. Nevillac possesses strong ability to increase adhesion, control viscosity, and add resistance to water, acids and alkali. I t also possesses p e r m a n e n t thermoplasticity and ease of emulsification. If you formulate coatings, it m a y well pay you to write for Neville's Technical Service Bulletin N o . 75, and then a laboratory sample of the Nevillac grade potentially most useful to you.
Neville Chemical Co., Pittsburgh 25, Pa.
Neville Products Resins—Coumarone-indene, Hydrocarbon (Thermoplastic and Heat Reactive), Hydroxy · Oils— Plasticizing, Neutral, Rubber Reclaiming, Shingle Stain · SolventsAromatic (Refined and Crude), Semi-Aromatic (Refined and Crude). · Antioxidants—Non-Staining Rubber · High Purity Indene · Indene Derivatives · Crude Naphthalene.
