Magnum Venus Plastech HIS INSTRUCTION MANUAL - Manual (Page 16)

- 16 - H.I.S. Instruction Manual
Operational Data
In order to function at maximum performance level, the standard HIS system requires an
air source capable of providing 25 CFM of clean, dry air at 100 psi. The High Volume HIS
system requires 35 CFM at 100 psi. The air supply hose to the unit must be kept as short
as practical and be no less than ½” Inner Diameter to assure adequate air supply. Clean,
dry air is essential to give the best service life of the powerhead and chopper motor.
Consult your local representative or MVP directly for air requirements if you feel your
operation may need more detailed information.
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 85 degrees F before using. Resin at 85 degrees F 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) will invariably
increase the wear factor on internal moving parts of 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 hard chromed pump cylinders with modifications of the piston are 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 are present) is generally the result of trying to add
tinting materials.
NOTE: NEVER USE SOLVENTS TO CLEAN THE CATALYST SYSTEM AS IT FORMS
UNSTABLE PEROXIDES. USE CLEAR WATER.
Glass fiber Roving: should be made for spray-up roving cutters and with a soft non-
static treatment. The MVP Hydraulic Systems do not have a high pressure air blast that
cause the fibers to tumble and float all over as with 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.