Over-Temperature Alarms: How RubberQ Prevents Scorched Batches in Production.

Over-Temperature Alarms: How RubberQ Prevents Scorched Batches in Production

Problem Statement

High-temperature curing processes often lead to scorched rubber batches, causing premature degradation, compression set failure, and inconsistent material properties. This issue is critical in applications requiring precise Shore A hardness and tensile strength, such as EV battery cooling seals and AI server manifold gaskets.

Material Science Analysis

Standard EPDM and NBR polymers degrade at temperatures above 150°C due to thermal oxidation and chain scission. FKM (Fluorocarbon Rubber) excels in high-temperature environments due to its fluorine content, which provides superior thermal stability and chemical resistance. HNBR (Hydrogenated Nitrile Rubber) offers enhanced heat resistance and mechanical properties, making it suitable for demanding applications.

Technical Specs

• FKM: Shore A 70-90, Tensile Strength 15-20 MPa, Elongation at Break 150-250%, Temperature Range -20°C to 200°C.
• HNBR: Shore A 60-90, Tensile Strength 20-30 MPa, Elongation at Break 200-400%, Temperature Range -40°C to 180°C.
• EPDM: Shore A 50-90, Tensile Strength 10-15 MPa, Elongation at Break 300-600%, Temperature Range -50°C to 150°C.

Technical Comparison

Material	Temperature Range (°C)	Compression Set (%)	Chemical Resistance
FKM	-20 to 200	15-25	Excellent
HNBR	-40 to 180	20-30	Good
EPDM	-50 to 150	30-40	Moderate

Standard Compliance

RubberQ adheres to IATF 16949 standards, ensuring batch-to-batch consistency in material properties. Our in-house compounding process allows precise control of polymer ratios, fillers, and curing agents, meeting ASTM D2000 and ISO 3601 specifications for sealing and damping applications.

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