Certified SATRA & ASTM Physical Standards

Quality Engineering & Lab Testing

Every bulk production batch undergoes mandatory destructive testing in our physical laboratory prior to container dispatch.

SATRA TM161 Cold Flex Test

Simulates extreme alpine running conditions in an environmental freezing chamber at -15°C.

100,000 Cycles

Cut growth less than 2.0mm. Passed without hairline cracking or delamination.

DIN 53516 Rotary Abrasion

Measures volume loss when rubber travels across an abrasive cylindrical drum under 10N pressure.

< 85 mm³

Classified as Ultra-Wear Resistant (versus industry benchmark of 150mm³).

SATRA TM144 Slip Resistance

Tests dynamic coefficient of friction on wet ceramic tiles and lubricated stainless steel surfaces.

CoF ≥ 0.48

Exceeds European EN ISO 20345 SRC highest safety slip-resistance threshold.

In-House QC and Injection Calibration

100% In-House Batch Quality Control

Every production run undergoes SATRA TM161 cold-chamber flexing and DIN abrasion verification before departing our Jinjiang facility. We calibrate durometer Shore hardness per pair to within ±2°, guaranteeing zero glue-line failure and rock-solid field reliability.

✓ Zero Hairline Cracks ✓ ±2° Shore Durometer ✓ Batch Lab Traceability

International Chemical Safety & Environmental Compliance

As a National Science & Technology Enterprise, we maintain a strict non-toxic manufacturing protocol. All outsoles are compounded from 100% virgin synthetic polymers and medical-grade eco-plasticizers.

🇪🇺 EU REACH Annex XVII

All 240+ Substances of Very High Concern (SVHC) are under 0.1% w/w. Completely free from restricted phthalates (DEHP, DBP, BBP), azo dyes, and organotin compounds.

🇺🇸 California Proposition 65

Total Lead content < 50 ppm, Cadmium < 5 ppm. Certified exempt from Proposition 65 cancer and reproductive harm warning label mandates.

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