What exactly is fiberglass? Fiberglass starts off as a liquid. This liquid is then extruded through tiny little holes, which turn it into thin strands of threads. These threads are coated with a chemical solution and bundled together to form rovings, or long bundles of fibre. Add a bit of resin and you have strong, durable, flexible fiberglass. [1] X Research source
What exactly is fiberglass? Fiberglass starts off as a liquid. This liquid is then extruded through tiny little holes, which turn it into thin strands of threads. These threads are coated with a chemical solution and bundled together to form rovings, or long bundles of fibre. Add a bit of resin and you have strong, durable, flexible fiberglass. [1] X Research source
As you spread the resin over the fiberglass mat, make sure to apply it over corners and weak spots with the same coverage that you would over flat, easy-to-reach surfaces. If you fail to get good coverage in corners, for example, your fiberglass will eventually develop weaknesses in those corners.
If possible, try laying down the fiberglass mat with the fibers oriented in different directions with each new layer. Fiberglass is strong across its axis but weak along its axis; if you can orient the strand mat so that its weak points are distributed along various axes instead of a single axis, you’ll end up with much stronger fiberglass. Sand in between steps to eliminate rough spots where mat or cloth may project through the resin.
