Polyimide SP-1 Grade Block, 50x50 mm Footprint, 35–50 mm Thickness

Polyimide SP-1 Grade Blocks 50×50 mm — High Temperature Resistant Engineering Plastic

High-Performance Polyimide Blocks for Extreme Applications

The SP-1 grade polyimide block is a high temperature resistant engineering plastic designed for demanding industrial environments. With excellent heat resistance, dimensional stability, and machinability, these blocks are widely used in aerospace, automotive, electronic insulation, and industrial tooling. Each block is supplied in a 50 × 50 mm (≈1.97" × 1.97") footprint with thickness options of 35 mm (1.38"), 40 mm (1.57"), 45 mm (1.77"), and 50 mm (1.97").

✔ Key Benefits of SP-1 Polyimide Blocks

• ✅ Heat resistance: Continuous use up to 260 °C (500 °F), ideal for high-temperature insulation and structural applications.
• ✅ Dimensional stability: Low creep and tight machining tolerances (±0.05 mm typical).
• ✅ Chemical durability: Resistant to fuels, oils, and solvents in industrial environments.
• ✅ Mechanical strength: Excellent wear resistance and long service life.
• ✅ Lightweight: Easier handling and reduced logistics costs compared to metals.

📐 Available Thickness & Sizes (Metric & Inch)

🔬 Typical Properties of SP-1 Polyimide

• Density: ~1.43 g/cm³
• Continuous service temperature: up to 260 °C (500 °F)
• Dielectric strength: excellent electrical insulation
• Low wear and creep under load

Values are typical guide values. For projects with strict requirements, contact us for datasheets and application-specific recommendations.

⚙ Processing & Machining Capabilities

• CNC machining: milling, turning, drilling, countersinking, chamfering
• Tolerances: typically ±0.05 mm; tighter tolerances available on request
• Custom finishing: polishing, engraving, UV printing

🌍 Common Applications

💡 Custominsul Advantage — Customer-Focused Solutions

• 🚀 Cut-to-size service: Order exact dimensions to reduce material waste.
• ⚙ CNC machining support: Upload drawings for a free DFM check within 1 business day.
• 📦 Cost-efficient logistics: Free standard shipping on qualifying orders and optimized protective packing.
• 🌐 Wide material range: Polyimide, PEEK, PTFE, FR4, UHMW-PE, Bakelite — one-stop sourcing for engineering plastics.

🛒 How to Order

1. Select the Thickness option above.
2. Need custom machining? ➜ Click Upload Drawing and get a tailored quote.
3. For bulk orders ➜ Request Wholesale Pricing with optimized delivery options.

📤 Upload Your Drawing & Get a Free Quote

❓ FAQs

Can you cut to my exact size or machine custom shapes?

Yes. We provide cut-to-size polyimide blocks and CNC machining (milling, drilling, chamfering, and more).

What tolerances can I expect?

Typical CNC machining tolerance is ±0.05 mm. Tighter tolerances are available on request.

Do you offer bulk discounts?

Yes. We provide wholesale pricing to help you save on large projects.

What industries use SP-1 polyimide blocks?

They are widely used in aerospace, automotive, electronics, and industrial tooling where high-temperature resistance is required.

Custominsul — your trusted source for SP-1 grade polyimide blocks, cut-to-size plastics, and custom machining services. Save cost, save time, and get reliable high-performance solutions tailored to your project needs.