Molding Process
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Stress whitening on the surface of EPDM products
Fenómeno del problema
After the product is stressed or cut, white areas appear locally
Análisis de la causa
Internal stress release causes local yielding of the polymer, producing micropores that scatter light
Solución
Annealing treatment to eliminate stress, optimize the process to reduce internal stress
Conclusión clave
Stress whitening is a visible sign of excessive internal stress
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