and deposited onto a conveyor in a random orientation the binder is dried to adhere the monofilaments together in the same manner as is the swirl mat or chopped strand mat the phenomenon known as fiber imprint is caused when mat is impregnated with a molding compound and the molding compound is cured shrinkage of the resin leaves an imprint of the strand and veil mat has the property of greatly reducing 34 fiber imprint 34 a sheet molding compound can be made from any of the mats above described one such process is shown in fig4 ______________________________________ desirable preferredmaterial by wt by wt ______________________________________resin having crosslinkable 25 to 95olefinic double bondsunsaturated resin used above 42 7catalyst for cross linking d b 0 1 to 5dicumyl peroxide 0 852 5 dimethyl hexyl 2 5 0 09di peroxybenzoate mold release agent 0 to 5zinc stearate 1 71gelling agent alkaline earth metal 0 2 to 10oxide ca oh sub 2 1 28solvent optionalstyrene monomer 4 27fillers 0 to 75resin type microethylene 6 4nonresinous filler caco sub 3 43 7______________________________________ the resin filler paste is prepared by charging the resin to a cowles type mixer the 2 5 dimethyl hexyl 2 5 di peroxybenzoate dissolved in approximately half of the styrene is blended with the resin thereafter the dicumyl peroxide and mold release agent are added the resin type filler is then blended in following which the.