In the world of advanced industrial applications, standard insulation materials often fail under extreme stress. Enter Polyimide Glass Cloth Laminate (also known as Bismaleimide insulation board), a high-performance rigid material engineered to thrive where others crumble.
What is Polyimide Glass Cloth Laminate?
Formed by hot-pressing alkali-free glass cloth impregnated with premium polyimide resin, this laminate is a pinnacle of material science. It combines the legendary heat tolerance of Polyimide (PI) with the structural integrity of glass fiber.
Why Choose It Over Other Materials?
1. Unmatched Thermal Stability
The most prominent feature of this material is its high-temperature resistance. It operates stably at 200°C for long periods, with special grades capable of withstanding intermittent use at 250°C or higher. Even at 200°C, it retains over 78% of its normal-temperature bending and tensile strength.
2. Exceptional Mechanical Strength
With a bending strength of 540MPa and an elastic modulus of 5000MPa (based on PIGC301 standards), it provides the rigid support needed for heavy-duty structural components.
3. Reliable Electrical & Chemical Properties
- Dielectric Strength: Reaches up to 22 kV/mm in 90°C oil.
- Low Water Absorption: A 2mm sheet absorbs only 0.4% water, ensuring insulation reliability in humid environments.
- Corrosion Resistance: Highly resistant to transformer oil and chemical media.
Applications: From Aerospace to 5G
The versatility of Polyimide Glass Cloth Laminate makes it a "key supporting component" across various sectors:
- Aerospace: Used in satellite solar cell substrates, rocket engine gaskets, and cockpit instrument panels due to its radiation and extreme heat resistance.
- Electronics & 5G: Vital for isolating high-voltage signals in 5G base station power amplifiers and as insulating liners in New Energy Vehicle (NEV) IGBT modules.
- Medical & Manufacturing: Functions as precision carriers in semiconductor wafer processing and heat-resistant components for surgical instruments.
The Future of PI Laminates
As high-end manufacturing evolves, so does this material. Through resin modification and optimized weaving processes, we are seeing 20% improvements in mechanical strength and new properties like high thermal conductivity for AI and deep space exploration.
Partner with RDS Composite
At RDS Composite, we manufacture Polyimide Glass Cloth Laminates to the highest international standards. From raw material procurement to final delivery, we ensure reliability and precision for your most demanding projects.
Need a custom solution for your high-temperature application? Contact our technical team today for specifications and quotes.