2. Pultrusion

Pultrusion is a manufacturing process for producing continuous lengths of reinforced polymer structural shapes with constant cross-sections. Raw materials are a liquid resin mixture (containing resin, fillers and specialized additives) and flexible textile reinforcing fibers. The process involves pulling these raw materials (rather than pushing, as is the case in extrusion) through a heated steel forming die using a continuous pulling device.
The reinforcement materials are in continuous forms such as rolls of fiberglass mat and doffs of fiberglass roving. As the reinforcements are saturated with the resin mixture (“wet-out”) in the resin bath and pulled through the die, the gelation, or hardening, of the resin is initiated by the heat from the die and a rigid, cured profile is formed that corresponds to the shape of the die.

3. Spray-up molding

When spray-up molding process is employed, spraying equipment shall be used to atomize the resin, and after the atomized resin is mixed with the instantly cut fiber in the air and lands on the mould surface, the air bubble shall be compacted and eliminated. Spray moulding can also be regarded as curing moulding. Spray moulding develops on the basis of manual moulding and the fiber application and resin impregnation in manual process are now can be finished by equipment, which is a relatively high-efficiency moulding process.


Related products: fiberglass gun roving

4. Hand lay-up

Hand lay-up is an open forming method for the manufacture of composite materials. It is the simplest and oldest method and can be considered within the lamination methods suited especially for large components. A reinforcing material such as glass, polymeric or carbon fibers are placed manually into the open mold after having poured a resin which, in this case, may be a suspension of geopolymer. Manually, using a trowel or roller, the suspension is spread all over the mold, soaking the fibers. The hardening step follows before demolding.

5. Compression Molding

Compression molding process is a mass production method where resin, additives and fiberglass reinforcenments are mixed & heated to reach a certain vicostiy,and compressed under specified temperature & pressure,and cured to form the parts.
Compression molding products include SMC(Sheet Molding Compound) and BMC(Bulk Molding Compound).

6. Continuous Panel Molding

Continuous panel molding process is to impregnate unsaturated polyster resin with fiberglass through continuous moulding sets, and then continuous panel shall be obtained with specific cross shape through heating, moulding and curing of the template. Specifically, continuous fiberglass roving cut into fixed-length fiber through the cutter shall be scattered on resin layers (or the chopped fiber mat shall be applied on resin layer) and impregnated with gum for heating; an anti-ageing film shall be placed on the upper part so that a sandwich zone can be formed between fiberglass and resin layer of upper and lower layers. The sandwich zone can be shaped through different cross templates and placed into the curing oven for shape fixation. Then the shaped glass reinforced plastics panel shall be cut.


Compared with other panels, FRP panel has such advantages as light weight, high intensity and excellent impact resistance, especially the unique light-transmitting performance and section designability.

Related products: multi-end roving and chopped mat

7. Injection molding

Injection molding is also called infusion moulding. During injection moulding, granules or powdery plastics are sent to the heated charging barrel through the hopper of injection moulding machine and become molten state through heating and fluxing, and the melted granules or powdery plastics shall be injected to the low-temperature and closed mould cavity through the nozzle at the end of the hopper under the pressure of screw. Shape given by mould cavity will be maintained after cooling and curing and then colloid can be taken from the cavity, thus a processing cycle is accomplished.

Related products: chopped strand and direct roving

8. Extrusion molding

Our main business: Fiberglass Direct Roving, Fiberglass Spray up Roving, AR-glass Fiberglass Roving, Fiberglass chopped strand mat

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