SPA-Sp035 Thermal Conductivity Boron Nitride Insulation Material Insulation Pad
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Product Highlights
- High Thermal Conductivity: 3.5 W/m-K thermal conductivity for efficient heat dissipation in electronic devices.
- Excellent Electrical Insulation: High breakdown voltage (>4kV) and low dielectric constant (<4.5) ensure safety.
- Flexible and Thin Design: Ultra-thin (0.25-0.5mm) and flexible with high tensile strength for easy installation.
- Self-Adhesive Backing: Comes with built-in viscosity for convenient bonding without additional glue.
- Flame Retardant Material: Meets V-0 flame rating standards for enhanced fire safety in applications.
- RoHS Compliant: Environmentally friendly material compliant with RoHS, HF, and REACH standards.
- Fiberglass Reinforced: Reinforced with fiberglass carrier for improved mechanical strength and durability.
Product Attributes
- Customization
- Available
- Application
- Building Material, Electrical Power System, Electronic Communication, Electronic Device, Industrial Equipment, Laboratory Equipment, Medical Equipment, Transportation
- Color
- White
- Model NO.
- SPA-SP035
- Material
- Silicone
- Maximum Voltage
- > 4kv
- Thermal Rating
- -50~200 Degrees
- Thickness
- 0.25 0.38 0.50mm
- Product Name
- Thermal Insulation Pad
- Base Material
- Fiberglass
- Thermal Conductivity
- 3.5W/Mk
- Features 1
- 3.5W/(M·K) High Thermal Conductivity
- Features 2
- Low Thermal Resistance
- Features 3
- High Breakdown Voltage
- Working Temperature
- -60~200 Degress
- Name
- High Thermal Conductivity Insulation Pad
- Tensile Strength
- 6 MPa
- Breakdown Voltageq
- > 4 Kv
- Hardness
- 90 Shore a
- Dielectric Constant
- < 4.5 1MHz_28GHz
- Temp. Range
- -60~200
- Feature
- Low Thermal Resistance
- Application Place
- Battery Packing
- Transport Package
- Carton Packaging
- Specification
- customized
- Trademark
- Tousen
- Origin
- China
- HS Code
- 3824999999
- Production Capacity
- 5000000000
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Product Description


Thermal conductivity : 3.5W/M.K
Thickness : 0.25m~0.5mm option
Thermal impedance @50psi : 0.21/0.28/0.40 ℃*in^2/W
Hardness : 90 ± 5 Shore A
Dielectric constant : < 4.5 (1MHz-28GHz)
Breakdown voltage : >4 Kv
Volume resistivity : > 10^14 ohm-cm
Temperature range : -60~200 ℃
Flame rating : V-0
Rohs/HF/Reach Compliant: Yes
Thermal conductivity : 3.5W/M.K
Thickness : 0.254~0.508mm
Thermal impedance @50psi : 0.33 ℃*in^2/W
Hardness : 90 ± 5 Shore A
Dielectric constant : < 4.0(1MHz-28GHz)
Breakdown voltage : >4 Kv
Volume resistivity : > 10^11 ohm-cm
Temperature range : -60~200 ℃
Flame rating : V-0
Rohs/HF/Reach Compliant: Yes

Tousen SPA-SP350 High Thermal Conductivity Boron Nitride- filled Insulation Pad is a high performance thermally conductive insulator designed for demanding aero space and commercial applications. Tousen Boron Nitrid thermally pad is a pure boron nitride elastomer formulated to maximize the thermal and dielectric performance of the filler/binder matrix .The result is a grease-free, conformable material capable of meeting or exceeding the thermal and electrical requirements of high reliability electronic packaging applications.
Characteristic Parameter SPA-SP035 | |||
Test ltems | Unit | Data | Test Method |
Reinforcement Carrier | Fiberglass | ||
Color | - | White | Visual |
Thermal Conductivity | W/(m-K) | 3.5 | ASTM D5470 |
Thickness | Mm | 0.38 | ASTM D374 |
Thermal lmpedance@50psi | C*in2/w | 0.28 | ASTM D5470 |
Hardness | Shore A | 90+5 | ASTM D2240 |
Dielectric Constant | 1MHz-28GHz | <4.50 | ASTM D150 |
Breakdown Voltage | kV | >4 | ASTM D149 |
Volume Resistivity | ohm-cm | >10^14 | ASTM D257 |
Tensile Strength | MPa | -60~200 | ASTM D412 |
Temperature Range | ℃ | 6 | - |
Flame Rating | - | V-0 | UL94 |
RoHS /HF/ REACH Compliant | - | YES | UL94 |
Our company has passed ISO 9001, ISO1400, IATF16949, OHSAS18001 and other related management system certifications, and our products have got UL\CE\ROHS\REACH and other certifications.
As a professional manufacturer in the field of thermal interface materials and EMI electromagnetic interference materials, Dongsen mainly provides silicone thermal conductive pads, thermal grease, thermal graphite sheet , thermal conductive tape rolls ,metal foil tapes (copper foil tape, aluminum foil tape), high temperature polyimide tapes, also we provide die cutting customize service as per customers' drawings. We are one of the biggest and most comprehensive solution suppliers of thermal conductivity materials, insulating materials and shielding materials in China.
Dongsen focuses on meeting customer needs and strives to maximize the profits of customers. We gain trust of various well-known customers, and has long-term cooperation with Samsung, ZTE, Changhong, Panasonic, Foxconn, Midea, etc., and has been well received



We are based in Guangdong, China, start from 2019,sell to Domestic Market(50.00%),Southeast Asia(30.00%),South America(20.00%). There are total about 101-200 people in our office.
Always a pre-production sample before mass production;
Always final Inspection before shipment;
Thermal silicone conductive pad,thermal graphite sheet,silicone graphite paste,thermal tape,Anti Blue Light Computer Screen Protector
We already build up long term partnerships with many famous electronic companies, ZTE, Huawei, etc.We will continue to face challenges in future, creating a world-known brand and a top leading technical company in new material industry.
Accepted Delivery Terms: FOB,EXW,DAF;
Accepted Payment Currency:USD,JPY,CNY;
Accepted Payment Type: T/T,L/C,Credit Card,PayPal,Cash;
Language Spoken:English,Chinese,Japanese
About the Supplier
This supplier has been audited by TÜV Rheinland. Verify the report on the official TÜV Rheinland website with ID "MIC-ASR252490". Items marked "" are certified.
Company Profile
Guang dong Dongsen Zhichuang Technology Co., Ltd.
Company Overview
Established in 2009, Guangdong Dongsen Zhichuang Technology Co., Ltd. is a leading thermal management solutions provider with a registered capital of 11 million CNY and over 200 employees. Our global footprint includes three independent manufacturing facilities in Dongguan, Huizhou, and Jiangxi, China, supported by overseas offices in Hong Kong, Japan, and Germany, ensuring agile service delivery worldwide. Certifications & Compliance
We uphold the highest standards through ISO 9001 (Quality Management), ISO 14001 (Environmental Management), IATF 16949 (Automotive Industry Standards), and OHSAS 18001 (Occupational Health and Safety) certifications. Our products meet rigorous international requirements, including UL, CE, RoHS, and REACH, guaranteeing safety, sustainability, and global market compatibility. Core Expertise & Product Portfolio
As a one-stop thermal management innovator, we specialize in: Thermal Interface Materials (TIMs): Silicone thermal pads, thermal grease, thermal gels
Advanced materials: Carbon fiber pads, graphene-enhanced pads, metal-based pads (copper/aluminum)
Metal Materials: Precision-engineered copper and aluminum foils
Thermal Management Tapes: Thermally conductive double-sided tapes, copper/aluminum foil tapes
High-temperature-resistant PI and PET tapes
Thermal Substrates: Ceramic sheets, ceramic-aluminum/copper hybrid substrates
Active Cooling Systems: Heat sinks, air-cooling modules, liquid cooling systems, thermoelectric coolers
Our custom die-cutting services enable tailored solutions for electronics, automotive, appliances, and industrial applications.
Strategic Partnerships
We collaborate with global industry leaders such as Samsung, Huawei, Foxconn, Panasonic, and Midea, delivering cost-optimized, high-performance solutions that enhance product reliability and profitability. Vision & Global Strategy
Vision: To be the world's preferred one-stop partner for thermal management innovation.
Growth Focus:
Expand R&D investments in next-gen materials (e. g., graphene integration, phase-change technologies). Strengthen global reach via strategic hubs in Europe and Asia-Pacific.
Drive sustainability through energy-efficient cooling solutions and circular manufacturing practices.
About Our Factory & Business Background
- Address
- No 5 Lucheng Westroad Qingxi Town, Dongguan, Guangdong, China
- Terms of Payment
- LC, T/T, D/P, PayPal, Western Union, Money Gram
- International Commercial Terms(Incoterms)
- CIF, DDP, CIP, Others
- Average Lead Time
-
Peak Season Lead Time: within 15 workdays
Off Season Lead Time: within 15 workdays - Nearest Port
- SHENZHEN
Our Production Capability & Technical Expertise
Our Industry Experience & Global Business Record
- Export Year
- 2009-01-01
- Main Markets
- North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe
FAQ
- What is the thermal conductivity of the SPA-SP035 pad?
- The thermal conductivity is 3.5 W/m-K, providing high efficiency for heat dissipation.
- Is the insulation pad flame retardant?
- Yes, it meets the V-0 flame rating standard for safety.
- What certifications does the product have?
- The product is RoHS, HF, and REACH compliant.
- What is the breakdown voltage?
- The breakdown voltage is greater than 4kV, ensuring strong electrical insulation.
- Can the pad be customized in size?
- Yes, we provide die-cutting customization services according to customer drawings.
- What are the main applications for this material?
- It is suitable for electric vehicle batteries, electronic packaging, and medical equipment.
- What payment terms are accepted?
- We accept T/T, L/C, Credit Card, PayPal, and Cash.
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Product Groups
- Thermal pad
- Thermal insulation pad
- Non-silicone thermal pad
- Carbon fiber thermal pad
- Graphene thermal conductive pad
- Phase Change Material
- Silicon Thermal paste/grease
- Thermal gel
- Silicone Foam
- High temperature adhesive tape
- Thermal conductive ceramic sheet
- thermal duble side conductive tape
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