What is the resin content of hand laid fiberglass?

Generally speaking, the resin content of hand laid fiberglass is between 65-70%, which means that the fiberglass content of pure felt or short cut layer should be between 30% (low) and 35% (high). The specific content is related to the lamination state and filling conditions of hand laid fiberglass.
It is very important to effectively control the resin content of components in different composite material forming processes. This not only reduces the manufacturing cost of components, but also avoids some potential quality issues.

For example, if there is too much resin (too low fiberglass content), there will be cracking and cracking, or areas with insufficient resin (too high fiberglass content), which will cause problems such as pores.

In short, the content of hand layed fiberglass resin is directly related to many factors of hand layed roller pressing, and here is only a rough guidance range, that's all.