Questions › Category: Waste › What wastes are generated while manufacturing fiberglass? 1 Vote Up Vote Down Sudhir Sharma asked 8 years ago 1 Answers 1 Vote Up Vote Down Best Answer Team GreenSutra® Staff answered 8 years ago Fiberglass with its versatile properties has become a material of choice for several applications. There are two major types of waste generated while manufacturing of fiberglass: Spent acetone from resin and gelcoat clean-up Waste resin and gelcoat from raw materials that can no longer be used in production If not treated properly at source, these wastes are Hazardous in nature.