Insecticidal Floor Wax.--A revolutionary household product that waxes floors and kills insects was introduced for the first time at the 47th annual convention of the National Food Brokers Association.
This new product, a combination high quality floor wax and powerful insecticide, is called Freewax, and is produced by the Freewax Corporation of Tallahassee, Florida.
Successfully pre-tested in thousands of Southern homes, it will be available to other consumers in the nation this Spring. Leading grocery stores, drug, hardware and department stores will sell Freewax for about 69ยข a pint.
"This new two-in-one product will make floors glow and bugs go," reports J. M. Feinberg, secretary-treasurer of the manufacturing firm. "It is the only product now in the market that offers homemakers, and other consumers, this dual service of shining floors and killing bugs in one operation.
"Freewax is a 'just apply-let dry' product that is self-polishing, and water resistant. It works on linoleum, asphalt and rubber tile, and cement as well as varnished and painted wood floors. It produces a high gloss without rubbing and tests have proved it to be skid resistant.
"The insecticide in the product is known as lindane, it is odorless and safe to human beings and pets. It kills roaches, ants, waterbugs, silverfish, and many other household insects that do millions of dollars worth of damage each year in American homes."
More than five years of research and 3000 laboratory tests conducted by Mr. Feinberg and his brother Irving, a chemist, led to the discovery and final development of Freewax, the world's first floor wax-insecticide.
During the past two years, market tests were successfully conducted in more than 100,000 homes in Florida. Tests by independent research laboratories disclosed that the new twofold product offers up to 100 per cent control of household crawling insects within 48 hr. after application.
Laboratory results also proved that Freewax meets the highest government specifications for floor waxes.
In addition to floors, Freewax can be used in other areas where .insects run, such as cracks, crevices, baseboards, pantry shelves, around sinks, pipe openings, window and door sills. It can be applied with a paint brush or cloth. Selenium Recfifiers.--International Resistance Company of Philadelphia has introduced its hermetically sealed Selenium Rectifiers with cell sizes as small as .060 in. diameter. Known as the Microstak line, these miniature units are available in a wide range of current and voltage ratings. The Hermetic Seal is made by metallized glass to metal bond which assures stable operation in high humidity, dust, corrosive fumes and changing pressures.
The design and small size of the Microstak rectifiers provide high frequency performance not found in conventional cells. These units have been used extensively in digital and analogue computers, hearing aids, air borne radar, CRT bias supplies and other advanced electronic circuits.