How To Restore a Fiberglass DRAG BIKE - From Start To Finish - Part 3 We use Polyester Primer on our Fiberglass Drag Bike Body for a Filler Primer and a Sealer all in one. We run into problems as we find the primer lifted due to grease and oil. #FiberglassRepairs #DragBike #PaintAndBody http://www.swrn.com or 972-420-1293