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NEW PRODUCTS, NEW LITERATURE:
Cobratec could save you a pretty penny! Copper and copper alloys stay brighter longer when t r e a t e d with Cobratec, an aromatic triazole. Example: the bright half of the penny was dipped in 1 % Cobratec solution; both halves were exposed for 15 minutes in a c c e l e r a t e d test atmosphere. Cobratec provides both a me chanical and electrochemical shield that is chemically bonded to the metal. C o b r a t e c c a n ' t wash off. Or wipe off. It adds pro tection in multimetal liquid han dling systems by tying up free copper ions in solution which cause g a l v a n i c c o r r o s i o n in other metals; can be used alone
or in c o m b i n a t i o n with other c o m p o u n d s for both atmos pheric or solution applications. Cobratec p r o v i d e s better, longer l a s t i n g p r o t e c t i o n . . . your savings could add up to a pretty piece of change. Samples! Write SHERWIN WILLIAMS CHEMICALS, P. 0 . Box 6506, Cleveland, Ohio 44101. Or call (216) 566-2978.
« m sherwin _ Williams M m chemicals
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