How to choose resin, fiberglass mold release agent, and reinforcement material for hand lay up process?

Many manufacturers encounter several types of release agents when purchasing them in the market, including oil-based, water-based, solvent based, and fluorine based. So which release agent can meet their needs? Today, the editor of Jianyi Chemical will explain the difference between water-based release agents and oil-based release agents:

1. Oil based release agent

It is a non reactive release agent that does not form a mold when brushed on the mold. Instead, it forms an oily release layer that provides a demolding effect. However, this layer of oil can withstand temperatures of 200-230 degrees Celsius and is currently only used by a small number of racket factories. It is a product that is about to be phased out. The advantages are that the mold is not easily dirty, odorless, and easy to operate. The disadvantage is that the number of delamination times is small, the release agent will transfer to the product, and it is difficult to handle during later painting processing, resulting in low brightness.
 

2. Water based release agent

Divided into two types:

① Water wax type is mainly used for hollow straight pipes of golf clubs, fishing rods, and other rolled types. Its advantages are that the iron core is not easily dirty, the inner wall is smooth, it is easy to demold, and the operation is convenient.

② Water based release agent is a reactive release agent mainly used for molded products. There are not yet mature products in this market. The advantage is that it is easy to process in the later stage, but the disadvantage is that the number of demoulding cycles is poor and the cleaning cycle is short.

Both water-based and oil-based release agents have their own advantages and disadvantages. Manufacturers still need to choose the appropriate release agent based on customer needs, product requirements, construction environment, environmental issues, and cost-effectiveness.