PI heating element delivers precise, uniform heat, resists chemicals and moisture, and operates reliably in temperatures from -40掳C to +200掳C. The ultrathin flexible polyimide heater can be made into very thin, from 0.13mm to 0.4mm, much thinner than FPC.
The Ultra-thin Flexible Polyimide PI heating film heater is engineered for applications requiring precision heating in compact or challenging environments. Made from high-quality polyimide (PI), this translucent material offers exceptional dielectric strength and stability. It performs reliably in narrow spaces, lightweight assemblies, and environments exposed to vacuum, oils, or chemicals.
Compared with silicone heating film, PET film, or ceramic electric heating film, polyimide heaters offer a more compact structure while maintaining excellent thermal performance.
The structure of PI heater is very simple, it consists of two layers Kapton庐 polyimide film sandwitch a layer of heating conductor. For easy installation, some customers require a layer of adhesive tape on the bottom side for a quick and secure mounting on various surfaces. The typical structure of a PI heater shows as following:
| Conductor Type | Thickness |
| Red copper | 12um, 18um, 35um |
| Brass Copper | 50um |
| 304 Stainless Steel | 30um, 40um, 50um |
| Iron-Chromium-Aluminum Alloy | 30um, 50um |
| Nickel-chromium alloy | 30um, 50um |
| White Copper | 50um |
Project Background:
A medical equipment manufacturer approached us to develop a heating solution for their new automated blood analyzer. The challenge was to maintain reagent temperature at 37掳C 卤0.5掳C to ensure consistent chemical reactions, even when the device was placed in laboratories with ambient temperatures ranging from 15掳C to 28掳C.
Challenges Faced:
Our Solution:
We designed a custom ultra-thin flexible polyimide film heater that could be mounted directly beneath the reagent tray. With a thickness of just 1.2 mm, it fit perfectly into the tight installation space without affecting the device structure. The Kapton庐 polyimide material provided chemical resistance, ensuring long-term durability despite frequent sterilization.
Performance Results:
| Parameter | Previous Heater | Our PI Heater | Improvement |
| Warm-up Time | 4 min 20 sec | 2 min 05 sec | 52% faster |
| Temperature Uniformity | 卤1.2掳C | 卤0.3掳C | 4x more stable |
| Power Consumption | 60W | 49W | 18% lower |
| Expected Lifespan | 3 years | 5 years | +66% |
Outcome:
The upgraded heating system not only improved the device鈥檚 diagnostic accuracy but also reduced maintenance downtime. The client has since standardized our PI heating element for all their future blood analyzer models.
1. How much does a polyimide or silicone heater cost?
Pricing depends on the size, specifications, and customization requirements.
2. Why is your price competitive?
We are a direct manufacturer, eliminating unnecessary intermediaries.
3. What payment methods do you accept?
We accept T/T. For sample orders, PayPal, Western Union, and Aliexpress are also available.
4. Can I order 1 piece for testing before placing a bulk order?
Yes, 1 piece are welcome, we don鈥檛 have MOQ requirement.
5. What is your lead time?
Samples can be ready within 3鈥7 days. For bulk production, lead time will be discussed based on your order quantity.
Danyu enables to offer one-stop customized heating solutions according to your specific requirements.
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