Escalator Handrail Issues with SBR in Outdoor Summer Heat: Causes & Solutions

夏季户外高温下的SBR扶手带问题不等于质量缺陷

Black Dust from SBR Escalator Handrails in Summer Is Not a Quality Defect

在户外扶梯中，若采用SBR（丁苯橡胶）材质的扶梯扶手带，夏季阳光直晒、气温较高时，可能出现表面出黑粉、易脏手的现象。
In outdoor escalators, when SBR (Styrene-Butadiene Rubber) handrails are used, high temperatures and direct sunlight in summer can cause black powder residue on the handrail surface, which may stain users’ hands.

⚠️ 这类现象并非产品制造质量问题，而是材料特性在特定环境下的表现。
⚠️ This is not a product quality defect, but a material response under specific environmental stress.

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为何会出现黑粉？——SBR 材质的耐候性限制

Why Does This Happen? — Limitations of SBR Weather Resistance

SBR 是一种常见的扶手带材料，具有性价比高、弹性好的特点，但其在耐紫外线、抗氧化和耐高温方面不如 CSM 或 EPDM 材质。
SBR is widely used in escalator handrails due to its good elasticity and cost-efficiency. However, it has lower resistance to UV, oxidation, and heat compared to materials like CSM or EPDM.
当扶梯长时间暴露在高温和强光环境中，SBR 扶手带表面可能发生：

• 氧化老化 → 表层析出碳黑颗粒
• 表面粉化 → 用户手部被染黑

Under prolonged exposure to sunlight and heat, SBR handrails may:

• Oxidize and release surface carbon black
• Create a powdery texture that transfers black dust to users’ hands

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解决方案：后期保养+材料升级并行

Solutions: Maintenance + Material Upgrade

✅ 日常维护建议：

✅ Daily Maintenance Tips:

1. 使用专用橡胶清洁剂定期清洁扶手带表面
2. 增加清洁频次（尤其在夏季或强紫外区域）
3. 定期清洁梯路滚轮，避免滚轮附着碳黑反复污染扶手带
4. Use special rubber cleaners regularly on handrail surfaces
5. Increase cleaning frequency, especially in summer or high-UV regions
6. Clean escalator roller surfaces regularly to prevent carbon black build-up and re-contamination

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