Vacuum Resin Transfer Molding (VRTM)
The article will explain mold fiberglass for personal projects.
Instructions
1. First, gather all your materials. Fiberglass cloth and resin can be purchased locally from most marine supply shops. Material can also be purchased on the internet from fiberglass supply companies.
2. Decide on what weight fiberglass and resin you want to use. If you are molding a structural component, then heavier fiberglass cloth should be used. Talk to your material supplier for advice, they are usually very helpful.
3. There are many methods of molding fiberglass. Shown above is vacuum molding which is more advanced. For beginners, use the method called "hand lamination."
4. Hand lamination is conducted by first draping the fiberglass around what you are wanting to mold.
5. Next, mix up resin and apply it by using a paint brush and use a plastic squeegee (much like a credit card) to remove excess resin.
6. Finally, let the resin fully set for 24hrs, then finish sand using a high grit sandpaper.
