Fluorosilicone
Greases
Dow Corning FS 1280 and FS 1281 are grease-like compounds composed of a fluorosilicone fluid thickened with a finely divided sil ica filler. They feature: . . . Insolubility in most oils . . . Serviceable temperatures from _ 8 0 ° to + 4 0 0 ° F. . . . Little or no attack on most rubber seals . . . Good lubricity They were developed specifically for use as fuel-, oil-, and solventresistant valve lubricants for appli cations involving extremes of heat or cold. They are also expected to find application as a sealing mate rial and as a lubricant for low speed bearings. Dept. IEC, Dow Corning Corp., Midland, Mich. 402
Diallyl Phthalafe Monomer DAP monomer in polyester resin systems offers advantages of high de flection temperature, low shrinkage,
extended storage stability, and low odor. It is a liquid, polymerizable monomer primarily used as a crosslinking agent in a wide range of polyester formulations. T h e mon omer and the resins are used in molding, laminating, impregnat ing, coating, casting, and a variety of other techniques, such as fila ment winding. Amounts of DAP monomer in systems range from 10 to 75% of resin total weight de pending on the application. Dept. IEC, Dapon Dept., FMC Corp., 161 East 42nd St., New York 17, Ν. Υ. 403
Heat-Reactive Hydrocarbon Resin For the first time in its long his tory, PICCO has deviated from its strictly synthetic thermoplastic resin production to provide a reac tive resin product. Piccodiene 2215 is a highly aromatic polymer with unsaturated double bonds
WHEN YOU MUST TRANSFER HEAT think of B E S L E R Typical airborne unit
BESLER designs and manu factures all types of heat transfer equipment. From light airborne units to large fixed test facilities. •
Gas to liquid
• Liquid to liquid •
Gas to gas Also, Besler Is Internationally known for Its high temperature, high pressure boilers.
BESLER CORP.
4053 Harlan Street Emeryville, Oakland 8, Calif.
Circle No. 65 on Readers' Service Card 92 A
INDUSTRIAL AND ENGINEERING CHEMISTRY
which possesses light color, excel lent solubility, and is profitably used in the preparation of fast-dry ing varnishes, enamels, concrete curing compounds, printing inks, and adhesives. T h e material is also furnished in a special rubber grade which is exceptionally stable to oxi dation and high temperatures. In rubber processing, the product raises heat resistance, improves processing, and promotes retention of high tensile strength and resist ance to abrasion. Resin product is available as a solid resin, flaked in multiwalled bags, or as a solu tion in mineral spirits. Dept. IEC, Pennsylvania Industrial Chemical Corp., Clairton, Pa. 404
General Purpose Silicon Rubber Eccosil 4850 is a flexible R T V silicone rubber with exceptional electrical and high temperature properties. Ease of use coupled with a temperature capability of 600° F. for extended periods makes it an unusually versatile product. This is 100% solids material. No
