Sinogrates FRP Putruded Profiles
At Sinogrates, we are dedicated to custom fiberglass pultrusions, and offer the right product at the right time for the right price.
Pultrusion is made from the words "pull" and "extrusion" as it involves pulling the composite material from a die. Fiber Reinforced Plastic (FRP) pultrusions are used in many different applications throughout many different industries. The pultrusion process allows Sinogrates Composites to produce continuous lengths of fiber reinforced polymer profiled shapes. Pultrusion material holds a lot of value over other types of materials that you may be considering for your next construction project or application
Sinogrates FRP Pultruded Profiles Moulds
The pultrusion process is used to form fiberglass-reinforced polymer - or FRP - into a strong but lightweight profile.
This process creates continuous lengths of FRP with a consistent cross-section.
FRP Pultruded profiles Surfaces Opinions
Depending on the sizes of FRP products and different environments, choosing different surface mats can achieve maximum performance to save costs to a certain extent.
FRP Pultruded Profiles Applications
Packing & Transportation
Our Laboratory
Sinogrates tests its products, checking their integrity and compliance at the company premises. Sinogrates can rely on specific equipment and instruments, such as presses, load cells, etc., as well as external advice.
JEC Composite Show In Exhibition
Certificates
FAQ
What is Pultrusion?
<Pultrusion is a continuous low pressure molding process using fiber reinforcements and thermosetting resins matrices. The fiberglass reinforcements are drawn through a resin bath or injected with resin in which all fibers are thoroughly impregnated with the liquid resin system. The wet-out fiber is formed to the desired geometric shape and pulled into a heated steel die. Once inside the die, the resin cure is initiated by controlling at precise elevated temperatures. The composite laminate solidifies in the exact cavity shape of the die, as it is continuously "pulled" by the pultrusion machine, thus getting the name - Pultrusion.
Can any shape be pultruded?
<Virtually any constant cross-section can be pultruded dependant upon wall thickness and complexity of the cross-section of the profile.
What are the most typical resins used in the Pultrusion process?
<Most commonly utilized resins are standard thermosetting resins such as polyesters, vinyl esters, epoxies, phenolics and urethanes during the pultrusion manufacturing process. However, thermoplastic resins can also be utilized in the Pultrusion process.
Do pultruded parts need to be painted?
<For most applications, internal coloration, surfacing veils, and various UV stabilized additives eliminate the need for secondary painting applications. However, to improve the weathering properties or the appearance of a pultruded profile during outdoor exposure, coatings are highly recommended. Most commonly used coatings are Acrylics and Urethanes.
Do FRP products have UV protection?
<The resins, coatings, and wear surfaces that we utilize are extremely resistant to UV rays. Direct sunlight exposure does not degrade structural performance. There can be color fading. Polyurethane coatings are often used to eliminate color fading.
What fire resistance standards do FRP panels meet?
<Most of the FRP products are manufactured with a fire-resistant polyester or vinyl ester. They have a Class 1 or Class 2 rating per ASTM E84 and a Type 3 rating per NFPA 220, depending on the requirements. The FRP is self-extinguishing and will stop burning once the active flame is removed.
For bridge decking, If there is a large fire on or under the bridge, then steel superstructure deformation becomes a critical issue. Fire resistance has not been an issue for exterior FRP bridge decks and platforms in the past.
If there are additional fire resistance requirements, there are fire proof coating that can be added at an additional cost.
For applications requiring non-combustible materials, a phenolic resin must be used.
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