Problem & Solution

Practical answers to common plastic material challenges

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EMA hardness too high

Material Analysis EMA hardness too high crystallinity filler amount plasticizer

EMA surface tiger stripes

Injection Molding EMA tiger stripes injection speed multi-stage injection mold temperature control

Low EMA elongation at break

Material Analysis EMA elongation at break molecular weight orientation control crosslinking degree

Large EMA compression set

Molding Process EMA compression set crosslinking degree elastic recovery reinforcing filler

EMA surface blooming

Production & Quality EMA blooming low molecular migration high molecular weight lubricant exudation

EMA surface stress whitening

Molding Process EMA stress whitening orientation stress annealing treatment stress concentration

Fast EMA thermal aging

Thermal aging is caused by thermo-oxidation; completing the antioxidant system is key

Material Analysis EMA thermal aging thermo-oxidation antioxidant high molecular weight

Insufficient EMA mixing

Processing Machinery EMA insufficient mixing screw mixing section kneading blocks side feeding

Poor EMA fatigue resistance

Production & Quality EMA fatigue resistance crosslinking degree molecular weight stress concentration

Obvious EMA surface color difference

Injection Molding EMA color difference color masterbatch dispersion pigment orientation temperature stability

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