A: Continuous extrusion vulcanization is the core production process for high-quality rubber strips (automotive/industrial). It realizes one-time forming of rubber strips with fixed cross-sections through continuous feeding → extrusion shaping → online vulcanization → post-processing. The key advantage is that it ensures ultra-high batch consistency of rubber strips (cross-section error ≤±0.1mm), stable physical properties, and supports 24-hour mass production—this is why it’s the first choice for OEM bulk supporting of automotive and industrial rubber parts.

A: For ultra-high temperature scenarios (industrial ovens, engine compartments, high-temperature chemical pipelines), material selection is based on the actual temperature range:

• 150-180℃: High-temperature resistant EPDM (cost-effective, basic anti-thermal aging);
• 150-200℃: FVMQ (fluorosilicone rubber, better weather resistance + high temperature resistance);
• 200-300℃: FFKM (perfluoroelastomer, the best high temperature resistance among rubber materials, for extreme high-temperature conditions).

In addition, the rubber strip structure is recommended to use low-compression-deformation design, with appropriate thickness increase and internal heat-insulating filler to further improve high-temperature adaptability.

A: The core physical indicators that directly determine the use effect of rubber strips/seals are 4 key items, with industry standard requirements as follows:

1. Hardness: 40-70 Shore A (55-65 Shore A for automotive strips, adjustable by working conditions for industrial strips);
2. Tensile Strength: ≥8MPa (HNBR high-performance materials ≥15MPa);
3. Elongation at Break: ≥300% (ensure toughness and anti-tearing);
4. Compression Set: ≤25% (70℃×22h, 150℃×70h for high-temperature materials—key indicator for sealing life).

All indicators are tested according to international ISO standards, with strict error control (e.g., hardness error ≤±2 Shore A).