INOAC SM-55 is a premium-grade, high-density polyurethane/polyester foam engineered specifically for high-end industrial, electronic, and automotive applications. Featuring a fine, dense open-and-microcellular hybrid structure, SM-55 maintains exceptional resilience, support, and compression set resistance even under long-term mechanical stress.

Renowned for its industry-leading eco-friendly properties, this halogen-free PU foam provides superior shock absorption, dust sealing, and acoustic damping while fully complying with strict Halogen-Free and UL94 HBF flame-retardant standards. It is the ideal protective base material for precision components requiring safety and long-term reliability.

• Superior Sealing & Cushioning: With a robust high density of 57±5 kg/m³, it offers excellent impact resistance. It effectively seals out dust, air, and moisture, providing long-lasting protection for internal core components.
• Eco-Friendly & Safe (Halogen-Free & Flame Retardant): Fully compliant with global green initiatives, it is 100% halogen-free. It features low flammability meeting UL94 HBF standards, ensuring it will not release highly toxic gases in high-heat or fire-hazard environments.
• Excellent Durability & Aging Resistance: Demonstrates high stability against temperature fluctuations, UV exposure, and mild chemical contact. It resists crumbling, collapsing, or deforming over extended use.
• Exceptional Die-Cutting & Adhesive Compatibility: The uniform texture and high tensile strength (≥ 98 kPa) allow clean edges without tearing. It can be easily laminated with single- or double-sided tapes for high-precision custom die-cutting.

• Office Automation (OA) Equipment: Printer toner cartridge seals, copier anti-vibration gaskets, and toner leakage barriers in digital multifunction printers.
• Precision Electronics: Laptop battery cushions, smartphone display frame seals, and speaker anti-resonance ring gaskets.
• Automotive Engineering: Car display backlight sealing, dashboard anti-squeak/rattle liners, and HVAC duct insulation gaskets.
• Industrial Enclosures: Control cabinet door seals, precision instrument shock pads, and power supply module insulation barriers.

SHENZHEN PUFENG PACKING MATERIAL CO.,LTD (PUFENG) is an international machining manufacturer specializing in precision die-cutting machining, designing adhesive products, insulation products, and sourcing optimal solutions to enhance product quality and performance for customers.

In 2024, Pufeng established Shenzhen Jinchengyuan Electronic Materials Co., LTD. to serve overseas markets. Founded in 2014, PUFENG operates two professional plants in China Mainland dedicated to die-cutting machining and materials. The company is committed to becoming a leading manufacturer in precision die-cutting through creativity, innovation in advanced technology and management, state-of-the-art equipment, and top industry talent.

PUFENG's operational principle is "Running based on the market and sincerity, client and high quality come first." The company maintains a strong technical team to develop precision products for worldwide customers, with a quality principle of "Serve customers precisely on every tiny point of the demand from customer."

We welcome opportunities to build business relationships based on equality and mutual benefit, and invite domestic and international partners to visit our facilities. Our team is dedicated to solving adhesive challenges and providing professional solutions and appropriate products.

• Your enquiries about our products will be answered within 12 hours.
• OEM or ODM projects are very welcome.
• We can die cut or design products according to your requirements.
• Provide perfect after-sales service, if you have questions, please contact us.
• Pack according to your requirement and deliver on time.