custom FRP profile

What to Know Before Ordering Custom Fiberglass Pultruded Profiles

Fiberglass Reinforced Plastic (FRP) pultruded profiles have become widely used in construction, electrical, chemical, and transportation industries. When customers require customized FRP profiles, careful consideration of design, materials, and production details is essential to ensure high performance and stable quality. Here are the main points to note when customizing pultruded FRP profiles.

1. Providing Drawings or Samples

To start the customization process, customers should provide:

• 2D or 3D drawings, or a physical sample
• Clear dimensions (width, height, thickness, tolerance)
• Marked sketches if drawings are unavailable
• Specified measurement units (mm or inch)

2. Defining Dimensions and Tolerances

Precise size data ensures accuracy during mold design and production. Customers should confirm:

• Section size and wall thickness
• Length and allowable deviation
• Any holes, slots, or internal channels

3. Application and Working Environment

Different applications require different resin systems and fiber types. The following details should be discussed:

• Application field: construction, marine, chemical, electrical, etc.
• Environmental conditions: outdoor, UV exposure, corrosion, temperature
• Mechanical requirements: load-bearing, insulation, fire resistance

4. Material and Resin Selection

The choice of materials determines the mechanical and chemical performance of the final product:

• Reinforcement: fiberglass, carbon fiber, or basalt fiber
• Resin system: unsaturated polyester, vinyl ester, epoxy, or phenolic resin
• Surface type: smooth, matte, textured, painted, or with gel coat
• Color: according to RAL or PANTONE standards

5. Mold and Production Matching

The complexity of the section determines mold structure and pulling difficulty. Factors to confirm include:

• Profile shape: solid, hollow, or multi-cavity
• Length tolerance and shrinkage rate
• Production speed (m/min) and surface quality balance

6. Post-Processing and Delivery

After pultrusion, some profiles require machining or special packaging:

• Post-processing: drilling, cutting, trimming, edge sealing
• Packing: anti-scratch and moisture-proof materials
• Inspection: size check, surface quality, color, mechanical test

7. Communication and Confirmation

Before production, it is highly recommended to fill out a Profile Parameter Confirmation Form. For new products, a trial production sample helps verify performance and fit. Long-term stability depends on clear technical communication between customer and manufacturer.

Conclusion

Customizing FRP pultruded profiles involves much more than shaping composite materials—it requires understanding the balance between structural design, raw materials, and production processes. With clear technical specifications and communication, manufacturers can deliver durable, precise, and cost-effective fiberglass profiles tailored to each customer’s needs.

About Henan Zhongsheng FRP

Henan Zhongsheng FRP specializes in FRP pultrusion molds, pultrusion equipment, and customized fiberglass profiles. We provide one-stop solutions, including mold design, production, and technical support for all pultrusion needs.

Contact us today to get your custom FRP pultruded profile solution:

www.frpzs.com
Email: Jessica@frpzs.com
WhatsApp: +86 15303735673