Finished FRP product
Polyurethane pultruded profiles
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.
Buying the finished product? You are on the right page. Setting up to make it yourself? See the die for this section and pultrusion machines.
Download spec sheet & RFQ checklist (.txt)
Solar module frame profile. State the module thickness, corner joint and mounting hole pattern.
At a glance
Polyurethane pultruded profiles in brief
Fiberglass profiles pultruded with a two-component polyurethane matrix, for thin-wall, high-stiffness sections such as solar frames, window profiles, floor beams and ladder rails.
- Product
- Polyurethane pultruded profiles: 5 catalogue forms
- Also called
- PU pultrusion profiles, polyurethane pultrusion, pultruded solar frame, polyurethane window profile, PU fiberglass ladder rail, polyurethane composite profile
- Made by
- Henan Zhongsheng Composite Material Co., Ltd., Muye District, Xinxiang, Henan, China
- Sold by
- pultrx, Shanghai, China: the factory’s directly affiliated export trading company and exporter of record
- Supply basis
- Made to your drawing or a catalogue form; quantities, cut lengths and inspection agreed per order. Catalogue forms are not stock.
- Pricing
- Quotation only, by drawing and quantity; FOB Chinese port by default, CIF or DAP on request. No list prices.
- Documentation
- Spec sheet and RFQ checklist; material data, dimensional inspection and test reports for the quoted product as agreed.
- Factory certification
- ISO 9001, ISO 14001 and ISO 45001 management-system certificates issued by Zhongqi Hexin Certification Center, valid to 2029. See certificates. Not a product certification.
Choose the configuration
What to resolve before selecting this product
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 photographs
Compare product forms
Compare product forms and configurations, then use the notes below to prepare your drawing and quotation requirements.
PU window profile at the cut-off saw on one of the factory’s own lines.
Specification
Configuration table
Dimensions, performance requirements and supply scope are defined in the project quotation.
| Parameter | Specification / requirement |
|---|---|
| Dimension convention | Controlled cross-section drawing with wall thicknesses, chamber layout, length and hole pattern; label mm or inches. |
| Resin system | Two-component polyurethane injected at the die; polyester, vinyl ester, epoxy and phenolic are listed for other families |
| Catalogue form examples | PV frame profiles, window profiles, floor beams, ladder rails (factory product pages, Chinese site) |
Confirm dimensions, ratings and supply scope in the project specification. Updated .
Supply workflow
From product specification to delivery
Use these stages to define responsibilities, interfaces and the evidence needed at handover.
- 01
Review the design package
Define geometry, function, critical interfaces and the service environment.
- 02
Agree the technical proposal
Confirm resin, reinforcement schedule, finish, secondary operations and qualification scope.
- 03
Approve sample criteria
Set dimensional, surface and functional checks on the first-article sample before production.
- 04
Review production delivery
Match parts, revisions and agreed records to the accepted order.
Scope of supply
Define the supply package and its options
Request an itemized quotation against these lists. A catalogue description does not confirm that every item is included.
Product and work 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
Applications
Applications to discuss with engineering
- 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
Cross-sections
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
Prepare your enquiry
Send an enquiry that can be quoted
Include the drawings and requirements below so engineering can confirm the configuration, exclusions and lead time.
Include in your RFQ
- 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
Agree the acceptance evidence
- 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 terms
Who you contract with
- Manufacturer
- Henan Zhongsheng Composite Material Co., Ltd.
- Warranty party and term
- Henan Zhongsheng Composite Material Co., Ltd.; term and coverage confirmed in the written quotation.
- Contracting party and exporter of record
- pultrx, Shanghai, China
- Incoterms
- FOB Chinese port by default; CIF/DAP on request
- Payment
- Agree milestones for specification approval, any required samples, batch inspection and shipment. Exact split on the quotation.
- Third-party inspection
- SGS, BV or TÜV pre-shipment inspection accepted, cost borne by the buyer
- Performance and inspection
- Specify the intended use, design loads, environment and applicable test methods. Confirm material data, dimensional tolerances and required inspection reports for the quoted product; catalogue examples do not establish project approval.
- Order quantity and lead time
- Confirm minimum order quantity, cut lengths, packing and working days from specification approval. Availability is established in the quotation.
FAQ
Questions buyers ask
- 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.
Put this into a project record
Related worksheets & visual references
- FRP Incoming Inspection Checklist
Use an FRP incoming inspection checklist to record lot identity, drawing revision, dimensions, fit, surface condition, quantities and contracted documents.
Send a cross-section drawing. Get a scoped quotation.
Every quotation names the manufacturer, the exporter of record and the warranty party, and lists what is included.