Magnum Venus Plastech Impregnator Roll - Manual (Page 14)

Models with roving cassette will require the cassette to be lifted into position on Impregnator after
reinforcement is mounted on cassette.
8. When material is in position on Impregnator, feed reinforcement down through the feed and
resin rolls. (Use remote roll or creep control valve to operate rollsuntil approximately 12 inches
hangs below the resin rolls. Open feed rolls, and remove and wrinkles that may be between
resin and feed rolls.
NOTE: With chopped strand mat and similar materials there is a hard side and a soft or fluffy
side. When running such materials with a carrier such as woven roving, the soft side should
always be toward the carrier, not toward the resin roll.
9. Adjust end dams up to the edges of the material. Care must be taken to insure proper
placement of the end dams. If they are too narrow it will cause the material to fold over and
allow too much resin to pass through; too wide and excess resin will drop through resin rolls at
the edges of the material
When adjusting end dams for chopped strand mat the dams should be as close to the edges of
the mat as possible and still allow the material to pass through without folding or wrinkling at
edges.
For woven roving and other materials that have a frayed edge, end dams should be set so the
dam is as close to the outside strands as possible and the fray is folded up as it passes through
resin rolls.
When running two dissimilar materials such as chopped mat and woven roving, end dams must
be as close to edges of the materials as possible. It may be necessary to compromise on
setting end dams because of different types of edges on the two materials.