Compatibility testing of rubber and $£♣"plastic

Definition: Grease and synthetic rubber compatibilβ♦×ity refers to the ability of grease♠₽≠δ to maintain the volume and hardness"∏ of standard elastomers unch↓₩↓&anged when in contact with grease.✔®₹α It is expressed as a perce↔®ntage of volume change.

① Poor compatibility of greaseπ±£→ can cause changes in the elasticity ™♥★of rubber materials, leading to incre  ased or decreased size, soften±≥✔<ing or hardening, cracking, •×φsignificantly reduced sealing perform>€ance, and phenomena such as plastic pa£ε$£rts bursting, accelerated"™ aging, and becoming brittle.

Ø Test Standard: SH/T 0429 “Method for Determin↕✘ing the Compatibility o×∏f Grease with Syntheti♥®c Rubber”, Equivalent♥≤γ Method: ASTM-D4289