Magnum Venus Plastech High Volume Modular System - Manual (Page 5)

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CHAPTER 2
MATERIALS
Selection of proper materials and the use of them can make the difference between success
and failure, with this or any other equipment. Your local distributor can assist in proper
selection for the best results. The following generalities should be followed.
RESIN should be formulated for gun use with proper promoters for MEKP. Also, with
Thixotropic characteristics and relatively low viscosity for fast impregnating. Resin should be
stored at about 70 to 75 degrees Fahrenheit (21
– 30 degrees C) before using. Resin at 85
degrees F (30 deg. C) will allow the equipment to perform better, minimize the variations and
control problems, speed up impregnation, and improve quality of products. Solid additives
which are introduced into resin for any purpose (such as flame retardation or thixotropic
properties) invariably increase the wear factor on internal moving parts in the resin pump.
More frequent replacement of these parts must be considered as part of the cost of using such
additives. It may be necessary to use special parts in the system such as carbide needles and
seats or heat-treated pump cylinders with modifications of the piston area to help lengthen the
life of the parts.
CATALYST should be Methyl Ethyl Keytone Peroxide of strength to give proper gel times for
products made with percentages of ¾ to 3% on standard equipment. This range is ½ to 1 ¼ %
on high volume units. A factory-tinted catalyst, for visual control purposes, is recommended.
This can be obtained from the peroxide manufacturer. Failure of the equipment (unless other
problems) is generally the result of trying to add tinting materials. Never use solvents to
clean the catalyst system as it forms unstable peroxides. Use only clear water.
GLASS FIBER ROVING should be made for spray-up roving cutters and with a soft, non-static
treatment. The Magnum Venus Hydraulic systems do not have a high pressure air blast that
causes the fibers to tumble and float all over, as with air aspirated guns, hence the softer the
treatment, the better the glass pattern. If treatment is too hard, fibers lay in clumps, the pattern
is narrow and it is difficult to attain uniformity and good impregnation.
SOLVENT The High Volume Modular unit is composed of parts and material lines compatible
to Acetone and solvent replacements . NOTE: Certain reclaimed solvents could affect
systems in such a way as to nullify the warranty.
AIR must be clean and dry. Moisture or oils in air supply may damage various components of
this system as they would any other machinery.