29 Years of Heritage: The Evolution of RubberQ from a Japan-China Joint Venture.

29 Years of Heritage: The Evolution of RubberQ from a Japan-China Joint Venture

Problem Statement

High-performance sealing applications in automotive and industrial environments demand materials that resist chemical degradation at temperatures exceeding 200°C. Conventional NBR and EPDM compounds fail due to insufficient thermal stability and poor resistance to aggressive fluids like oils, acids, and fuels.

Material Science Analysis

Fluorocarbon rubber (FKM) excels in these conditions due to its high fluorine content (66-70%). The C-F bond provides exceptional chemical resistance and thermal stability. HNBR, with its hydrogenated backbone, offers superior tensile strength and aging resistance but falls short in extreme chemical environments. EPDM, while cost-effective, lacks the necessary oil resistance for high-temperature sealing applications.

Technical Specs

• FKM: Shore A Hardness 70-90, Tensile Strength 10-20 MPa, Elongation at Break 100-200%, Temperature Range -20°C to 250°C.
• HNBR: Shore A Hardness 60-90, Tensile Strength 15-30 MPa, Elongation at Break 200-400%, Temperature Range -40°C to 150°C.
• EPDM: Shore A Hardness 50-90, Tensile Strength 7-15 MPa, Elongation at Break 200-600%, Temperature Range -50°C to 150°C.

Technical Comparison

Material	Temperature Range (°C)	Compression Set (%)	Chemical Resistance
FKM	-20 to 250	15-25	Excellent
HNBR	-40 to 150	20-30	Good
EPDM	-50 to 150	25-35	Fair

Standard Compliance

RubberQ adheres to IATF 16949 standards, ensuring batch-to-batch consistency in material properties. Our in-house compounding capabilities allow precise control over polymer ratios, fillers, and curing agents. We comply with ASTM D2000 for material callouts and ISO 3601 for sealing performance validation.

For custom material compound development or IATF 16949 documentation, consult RubberQ’s engineering department.