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Method for making molded sandwich tubular septic tanks and other molded tubular articles

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1. THE METHOD OF MOLDING A TUBULAR OBJECT COMPRISING LINING A TUBULAR ROTATABLE MOLD WITH A WAX MOLD RELEASE, THEN LINING THE MOLD WITH A LAYER OF FIBERGLASS FABRIC OF A DESIRED THICKENSS THAT HAS BEEN PRE-WETTED WITH THERMOSETTING POLYSTER RESIN TO THE APPROXIMATE SHAPE THEREOF, MOMENTARILY ROTATING THE MOLD AT A HIGH SPEED TO ELIMINATE AIR POCKETS IN AND BETWEEN THE FABRIC, THEN CONTINUING THE ROTATION BUT AT A SLOW SPEED AND THEN ADDING A LAYER OF SIMILARY PRE-WET FIBERLESS FILLER OF A DESIRED THICKNESS TO THE PRE-WET FABRIC, THEN INCREASING THE SPEED OF ROTATION AND PUMPING HOT AIR INTO THE MOLD UNTIL THE MATERIAL JELLS, STOPPING THE HOT AIR AND STOPPING THE ROTATION OF
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