Glass fiber reinforced plastic (FRP) board process and practical tip

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Introduction to machine board

Plate forming initially for hand paste molding. Poor operating environment, low production efficiency, unstable quality, single variety, can not meet the needs of many. And now, the use of mechanism technology, continuous molding, the use of automatic equipment, feeding, forming, cutting integration, high production efficiency, high quality and stability of the plate.At present, the mechanism plate has basically replaced the hand paste plate.

 Machinery manufacturing processing

Mechanism process is the resin inside stainless steel kettle, through quantitative extraction pump into the mixing vessel, then according to the resin in proportion to join promoter and the curing agent (promoter can also add to the stainless steel kettle stir well in advance), and fillers, stir well, through the metering pump pumping in membrane under the production line running at a constant speed. And silk machine according to the set proportion of glass fiber, yarn cutting into chopped glass fiber laying on the resin, can be directly laid chopped strand mat, platform, through a certain temperature to make resin and glass fiber or the infiltration time and temperature, then up membrane, into good preheat oven after roller compaction, curing, according to the size required for cutting.

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Machine board applications

Mechanism plate is mainly used for two products, one is commonly used for the transparent light plate roof, the other is used for the gelcoat plate box.

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Light plate is related to a lighting material with steel structure, mainly composed of high-performance upper film, enhanced polyester and fiberglass, the upper film has a very good anti-ultraviolet anti-static effect, anti-ultraviolet is to protect the POLYESTER FRP light plate from yellowing aging, premature light transmission characteristics.Products can be widely used in industrial/commercial/civil building roofing and wall, due to its stable quality, durable, well received by customers.

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Gelcoat plate is different from the light board, it does not need high-performance film, but by high-performance gelcoat as the surface of the product, the surface of the plate is more beautiful, and scratch resistance, weather resistance are good. Products can be widely used in the surface of the box, can be used as refrigerator car board, container board, etc.

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The weatherability of plate is a big problem that troubles the manufacturers of mechanical plate, so how to improve the weatherability of plate?

In the first place, polyester resin with good weather resistance can be used, such as m-benzene and neopentyl alcohol resin in Peking road.

The second is the need to add ultraviolet absorbent, ultraviolet absorbent is not added the more the better. Three is the surface layer to do the protective layer, can be weather resistant type gelcoat, can also be weather resistant type of composite film, fluorine film weather resistance is good, composite film to choose heat sealing treatment, so that the bonding effect with the plate is good, not easy to fall off, so as to better achieve the effect of weather resistance. To be clear,  these methods are only different degrees of delay plate yellowing, aging.

About Us

hebei Yuniu Fiberglass Manufacturing Co., LTD. We mainly produce and sell e-type fiberglass products, such as fiberglass roving, fiberglass chopped silk, fiberglass chopped felt, fiberglass gingham, needled felt, fiberglass fabric and so on.If any needs, please contact us freely.

 


Post time: Dec-23-2021