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FRP technology

Our molding technology for FRP products

FRP technology

Meet our technology for FRP (Fiber-Reinforced Plastic) mold manufacturing.
We can propose the best method for your conditions, considering such factors as design, cost, and timeframe.

Process of the FRP molding die and the product

1.Making the male die
1.Making the male die
2.Making the female die
2.Making the female die
3.Release the female die
3.Release the
female die
4.Completion of the female die
4.Completion of
the female die
5.Molding the FRP product
5.Molding
the FRP product
6.Release the product
6.Release
the FRP product

Making an FRP product’s mold with almost the same material

Making an FRP product’s mold with almost the same material

The female molds generally used for manufacturing FRP (Fiber-Reinforced Plastic) products are made with material almost identical to the product. One important feature of these molds is that the gelcoat used for the mold surface is made of highly solvent-resistant material. Also, to maintain the shape of the mold, the thickness is increased, and it is further reinforced with FRP, metal, etc.

Useful for producing multiple products

Useful for producing multiple products

Largely used for producing multiple products, our technology sometimes produces several hundred products, depending on the form, molding conditions, maintenance state, etc. For products emphasizing appearance, we construct the female mold to a finish one rank higher than the product. Thus, the gelcoat sprayed onto the female mold turns into the appearance of the product, obtaining a beautiful appearance with no need for after-blow or polishing.

Using different materials for male molds for different purposes

Using different materials for male molds for different purposes

Male molds are molds made in the same shape as the product in order to make the FRP female molds. Yamaha Motor Company forms their surfaces using urethane or spray putty depending on their size, form, and function. For small products that only require one female mold, urethane is best, for its cost and speed. For large products or products that require multiple female molds, we use spray putty, which is more rigid.

An alternate method functionally similar to FRP molding

An alternate method functionally similar to FRP molding

Besides FRP molding, another method used for making FRP products is the direct molding method. This method produces the female molds directly by NC machining, saving time and cost. While normal FRP molding is good for forming 200 to 400 products or so (depending on the form and molding conditions), the direct molding method does not guarantee durability and so is best for prototypes and single products.

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Gamagori office , Marine Business Operations ,
Yamaha Motor Co., Ltd.

Feel free to ask about the details of our CNC mold manufacturing, estimates, or anything else.

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