Fiberglass Mat To Resin Ratio

When preparing to perform a repair you must mix the proper ratio of hardener to polyester resin to prevent the resin from failing to cure properly.
Fiberglass mat to resin ratio. When polyester or vinyl ester resin is added to the mat the binder dissolves and the fibers can be moved around. Polyester resin is recommended for use with fiberglass repairs that are above the water line on boats and also on other dry surface fiberglass forms such as auto bodies and models. Suggested use s use with usc fiberglass resin or fiberglass resin gel for repairing or building fiberglass. Ideal for custom molding.
The fiberglass resin binder needs styrene to dissolve properly. Fibre glast developments corp. This makes it incompatible with epoxy resin. For an effective laminate it is essential that the glassfibre material is thoroughly wetted out with resin.
It is only compatible with polyester and vinyl ester resin which contains styrene. The following table shows the amount of resin needed per square metre of fibreglass material. The amount of resin needed to do this varies from one glassfibre material to another. Resin to glassfibre ratios.