Fibreglass is a very strong and lightweight material. However, this means it often outlives the object's usefulness and therefore runs to the end of its life cycle. This is the case with boats, tables, chairs and even old car stereo enclosures. Long after the item has run its useful course of existence, the fibreglass still remains. So if you are dismantling a fibreglass object and want to dispose of it properly, there are ways to go about it.
Remove the fibreglass from the surface of the material it is covering to salvage parts of the object. This is not necessary, but it is a meaningful step if you want to keep any part of the object. Use a heat gun and a scraper to peel the fibreglass from the object.
Cut the fibreglass into small strips and pieces that are anywhere from a few inches to a foot wide. Use a jig saw or knife for this step. The point is to cut long sheets into more manageable pieces.
Throw the scraps into a trash bag or a container. Any bag or container that will hold the scraps will suffice.
Take the container to a dump site in your town and properly dispose of them. If your town offers recycling of fibreglass, dispose of the fibreglass in its fibreglass recycling bin. If not, you may choose to locate an industrial recycler that accepts scrap fibreglass. You must locate one in the phone book or through the town dump operator in your town.
Fibreglass should never be burnt or shredded. Fumes and fibres from fibreglass may be harmful when inhaled and will irritate skin. Always wear gloves and a mask when handling or working with fibreglass.