close
Choose Your Site
Global
Social Media
Views: 0 Author: Site Editor Publish Time: 2026-08-17 Origin: Site
Electrical Insulation
Like round rods and square rods, flat strips can be used as insulating structural components in high-voltage electrical equipment, including high-voltage switches, transformers, and capacitors. They are also used for antennas in communication equipment, line support poles, and insulation components for railway conductors.
Sports Equipment
Flat strips offer unique advantages in sports, used as sailboard reinforcement strips and bow limbs. Also widely used for tent frames, tool handles, and various sports equipment.
Construction & Decoration
In construction, flat strips are used for reinforcements and decorative trim. They are also excellent structural-decorative materials for residential decoration, railings, and brackets. Their good decorative quality and mirror-smooth surface give them an edge in decorative applications.
Aerospace & Lightweight Applications
In weight-critical applications such as aerospace and automotive components, flat strips reduce overall weight without sacrificing too much strength. They are highly effective in aircraft, rockets, spacecraft, and pressure vessels where weight reduction is essential.
Agriculture & Industry
Flat strips are also used in agricultural facilities, new energy, industrial equipment, and decorative antenna radomes.
Requirement Dimension | Customer Concern | Typical Scenario |
Flexural elasticity | Whether it fatigues and fractures after repeated bending as bow limb or spring strip | Bow limbs, sailboard reinforcements, antenna elements |
Surface aesthetics | Whether the surface is smooth and attractive, and can be used directly for decoration | Architectural trim, furniture components |
Dimensional precision (thickness) | Whether thickness is uniform and affects assembly fit | Insulating shims, equipment guide rails |
Lightweight | Whether structural strength is maintained while reducing weight | Aerospace components, drone structural parts |
Delamination resistance | Whether interlayer delamination occurs under load in flat structure | Repeated bending applications |
Customer Question | Standard Answer |
Q: Will flat strips break from repeated bending when used as bow limbs or spring strips? | Our flat strips feature continuous axial fiber arrangement with unbroken fibers along the bending direction. After 1 million fatigue test cycles (bending stress at 50% of ultimate strength), no significant strength degradation was observed. Note, however — fiberglass is an elastic material, not plastic. Allowable bending deformation is typically 3~5 times the diameter/thickness. Exceeding this range may cause permanent damage or fracture. Please avoid violent bending and destructive use beyond limits. |
Q: Can the surface be directly painted or film-laminated? | Yes. Standard products have mold release agent removed from the surface, and can be directly sprayed with polyurethane paint, epoxy paint, or laminated with decorative film. For even better adhesion, choose sanded flat strips (roughness Ra ≤ 3.2μm), which significantly enhance paint adhesion. |
Q: What weight can be achieved for aerospace or drone applications? | Flat strip density is only about 2.0g/cm³. For example, a 10×3mm cross-section, 1-meter long flat strip weighs only ~60 grams. At equivalent strength, it is ~30% lighter than aluminum alloy and 75% lighter than steel, making it ideal for weight-sensitive applications. |
Q: What's the minimum thickness? Is there a thickness tolerance? | Standard flat strips have a minimum thickness of 1.5mm, with thickness tolerance of ±0.05mm (for thickness ≤5mm). Tolerances for greater thicknesses scale proportionally. We offer precision grinding with thickness controlled within ±0.02mm. |
Flat strips are solid profiles with rectangular cross-sections, where width is much greater than thickness. Featuring continuous axial fiber arrangement with unbroken fibers along the bending direction, they offer excellent flexural elasticity and fatigue resistance. The surface can be precision-ground or sanded, combining functionality and aesthetics.
Resin System | Applications | Recommendation Priority |
Unsaturated Polyester (UP) | Fitness equipment, toy bows, general-purpose flat strips | ⭐⭐⭐ |
Epoxy Resin (EP) | Aerospace, precision elastic components | ⭐⭐⭐ |
Vinyl Ester (VE) | Corrosion-resistant environment flat strips | ⭐⭐ |
Application | Recommended Section (W × T) | Recommended Resin | Key Requirements |
Bow limbs | 10~16 × 3~5mm | Epoxy resin | High elasticity, fatigue resistance |
Yoga / fitness rings | 5×8 ~ 7×12mm | Unsaturated polyester | Flexibility, smooth surface |
Architectural trim | 15~30 × 3~5mm | Unsaturated polyester | Aesthetic appearance |
Sailboard reinforcements | 20~30 × 4~6mm | Epoxy resin | Seawater resistant, high strength |
Insulating shims / guide rails | 5~20 × 1.5~3mm | Epoxy resin | Thickness precision, insulation |
Tool handle flat strips | 10~20 × 4~6mm | Unsaturated polyester | Good feel, lightweight |
Excellent Flexural Elasticity: Continuous axial fiber arrangement with unbroken fibers along the bending direction. Can be repeatedly bent without permanent deformation or fatigue fracture, making it ideal for dynamic load components like bow limbs and spring strips.
Lightweight & Portable: Flat cross-section with extremely low weight (10×3mm × 1m = only ~60g), significantly reducing finished product weight without sacrificing strength. Especially suitable for weight-sensitive aerospace, drone, and outdoor sports equipment.
Excellent Surface Finish: Mirror-smooth surface after precision grinding and sanding, directly usable for architectural trim, furniture components, and other appearance-critical applications. Can be sprayed in any color or wood-grain finish to meet consumer aesthetic requirements.
High Dimensional Precision: Thickness tolerance controlled within ±0.02mm (precision grinding), with excellent width and thickness consistency. Suitable for precision insulating shims, equipment guide rails, and other applications with strict fit requirements.
Delamination & Fatigue Resistant: Pultrusion process ensures thorough fiber-resin impregnation and bonding, resisting interlayer delamination under repeated bending and vibration, with long service life.
Common flat strip specifications include: 3×12mm, 3×20mm, 4×20mm, 4×15mm,5×30mm, etc. Custom width × thickness combinations available per customer requirements. Minimum thickness can reach 1.5mm, with thickness tolerance controlled within ±0.02mm (precision grinding).
Customization Item | Available Range / Specification | Tolerance / Notes |
Length | Standard: 1000mm / 2000mm; Max 4000mm | Cutting tolerance ±1mm |
Width × Thickness | Width 12mm ~ 30mm; thickness 3mm ~ 5mm (minimum 1.0mm) | Thickness tolerance ±0.05mm (precision grinding ±0.02mm); width tolerance ±0.10mm |
Color | Internal coloring (full-body) or surface spraying; Standard colors: White, black, gray, red, orange, yellow, green, blue; Pantone color number customization supported | Spraying achieves any decorative effect |
Surface Treatment | Standard natural finish / precision grinding (Ra≤1.6μm) / sanding (enhanced adhesion) / decorative or wear-resistant spray coating / end rounding | Sanding facilitates subsequent bonding or painting |
Packaging Method | Carton with flat-laid dividers / wooden case / shrink wrap (small quantities) | Thin flat strips must be laid flat to prevent warping |
OEM Customization | Resin formulation customization / custom width-to-thickness ratio molds / punching, drilling / surface embossing / coil supply available (thin types only) | Suitable for batch continuous supply scenarios |
We provide full-chain OEM/ODM services from material formulation → cross-section design → mold development → pultrusion production → post-processing → assembly and packaging.
OEM Service Process:
Requirement Communication → Drawing / Sample Confirmation → Mold Development (if required) → Sample Production (5~14 working days) → Customer Confirmation → Mass Production → Full Inspection & Packaging → Delivery & Shipment
Minimum Order Quantity (MOQ):
Standard specifications: 5000~1,0000 meters (negotiable for first cooperation)
Non-standard mold opening: From 2,0000 meters (mold fee charged separately)
Sample order: Small quantity samples available (sample fee can be deducted from subsequent bulk orders)
