Hand Lay-up defines one of the original FRP open molding processes. The hand lay-up process provides for low costs for tooling, high fiber/resin ratios and offers precision throughout the entire component. Hand lay-up is used for mold production, complex shapes, and low volume production.
The fiberglass is wet out with resin and placed in the mold. Rollers and brushes are used to remove all bubbles and to make sure thickness is the same throughout.