pultrx | Polyurethane pultruded profiles Product: https://pultrx.com/frp-profiles/polyurethane-pultruded-profiles Updated: 2026-11-01 Contact: inquiry@pultrx.com Polyurethane pultruded profiles use a two-component PU resin injected at the die instead of a polyester or vinyl ester dip bath. The higher fiber content and tougher matrix allow thinner walls and sharper corners than polyester pultrusion. Henan Zhongsheng lists solar module frames, window profiles, floor beams and ladder rails among the PU profiles it runs on its own lines, and cuts the PU dies in its die shop. Specify the section by drawing, state the service environment and ask for the material specification and test evidence for the quoted product. Manufacturer: Henan Zhongsheng Composite Material Co., Ltd. Manufacturer’s export trading company: pultrx, Shanghai, China Catalogue figures are references, not a binding offer. Confirm the configuration, inclusions and acceptance criteria in the written quotation. CONFIGURATIONS Configuration SPECIFICATIONS Dimension convention: Configuration = Controlled cross-section drawing with wall thicknesses, chamber layout, length and hole pattern; label mm or inches. Resin system: Configuration = Two-component polyurethane injected at the die; polyester, vinyl ester, epoxy and phenolic are listed for other families Catalogue form examples: Configuration = PV frame profiles, window profiles, floor beams, ladder rails (factory product pages, Chinese site) PRODUCT PHOTOGRAPHS - Solar module frame profile. State the module thickness, corner joint and mounting hole pattern. Image: https://pultrx.com/images/frp-profiles/polyurethane-pultruded-pv-frame.webp - PU window profile at the cut-off saw on one of the factory’s own lines. Image: https://pultrx.com/images/frp-profiles/polyurethane-window-profile-on-line.webp SELECTION - Decide whether PU is needed: PU pays off for thin walls, sharp corners, high stiffness and screw retention. For a plain tube or channel a polyester or vinyl ester profile is usually the cheaper answer; ask for both if unsure. - Plan the die and the injection: A PU section needs its own die with injection ports and the matching preform guides. Tooling charges, ownership and the injection unit are stated separately in the quotation. PRODUCT FORMS AND CATALOGUE EXAMPLES - Solar (PV) module frame profiles - Window and door frame profiles with multiple chambers - Floor beams and deck support beams - Ladder rails and ladder side-rail channels - Custom PU sections to drawing APPLICATIONS TO REVIEW - Solar module frames where corrosion resistance and low weight replace aluminum, subject to module-maker qualification - Window and door frames in composite joinery, subject to project thermal and structural review - Floor beams in vehicle, refrigerated-box and building floors, per project design - Insulating ladder rails requiring assembly qualification PROCESS TO REVIEW - Review the design package: Define geometry, function, critical interfaces and the service environment. - Agree the technical proposal: Confirm resin, reinforcement schedule, finish, secondary operations and qualification scope. - Approve sample criteria: Set dimensional, surface and functional checks on the first-article sample before production. - Review production delivery: Match parts, revisions and agreed records to the accepted order. CORE SCOPE TO SPECIFY - Profile quantities, dimensions and cut lengths identified in the accepted quotation - Packaging, lot identification and inspection documents as agreed OPTIONS AND SERVICES TO PRICE SEPARATELY - New PU die and preform guides where the section is not in the factory’s tooling list: confirm charges and ownership - Project testing, samples and secondary machining: confirm charges - Freight and export packing: itemize if required RFQ INPUTS — complete these before requesting a quotation - Controlled drawing with wall thicknesses and chamber layout - Service environment, stiffness and thermal requirements - Quantity, lengths and secondary operations - Color, surface finish and UV requirements - Sample approval and project testing requirements - Delivery date, destination and packaging needs ACCEPTANCE EVIDENCE TO AGREE - Verify drawing revision and critical dimensions. - Check wall thickness, chamber integrity and corner fill. - Inspect surface against an approved reference sample. - Review contracted mechanical or thermal tests and lot records. COMMERCIAL ITEMS TO CONFIRM Applicable performance and destination requirements; lead time in working days; payment milestones; warranty party, term and exclusions; packing, Incoterm and delivery destination. For equipment, include plant power and spare parts. QUESTIONS Why choose polyurethane over polyester for a pultruded frame? PU gives a tougher matrix and allows a higher fiber content, so walls can be thinner and corners sharper for the same stiffness. It costs more per kilogram and needs an injection die, so it is chosen where the section design needs it, not by default. Can the factory make a PU solar frame to our module drawing? Send the frame section, corner key and mounting details. The factory lists PV frame profiles among its PU products and cuts PU dies in its own die shop; die cost and ownership are quoted separately. Module-level qualification stays with the module maker. Who supplies the PU injection equipment on the factory’s lines? The factory lists its own polyurethane injection unit. pultrx also lists the Huafan YH-2700 system under a separate supplier. This matters only if you buy a PU line; for finished profiles the factory runs its own equipment. RELATED RESOURCES Line tooling, including PU injection units: https://pultrx.com/pultrusion-tooling Huafan YH-2700 resin injection system: https://pultrx.com/resin-injection-systems Custom FRP profiles to drawing: https://pultrx.com/frp-profiles/custom-frp-profiles FRP resin selection guide: https://pultrx.com/guides/frp-resin-selection Request a PU profile quotation: https://pultrx.com/contact?interest=frp-profile&product=Polyurethane%20pultruded%20profiles Visit our factory: https://pultrx.com/manufacturing-partner Prepare an enquiry: https://pultrx.com/contact?interest=frp-profile&product=Polyurethane%20pultruded%20profiles