Bio-SAH MPET3613 is a high-performance hydrolysis stabilizer masterbatch specifically developed for PET injection molding applications. During injection molding and melt processing, PET resins are highly sensitive to moisture and thermal degradation. Even small amounts of residual moisture can lead to hydrolysis, resulting in polymer chain scission, reduced molecular weight, decreased intrinsic viscosity (IV), and ultimately poor mechanical performance of molded parts.
In addition, acidic degradation by-products formed during processing can further accelerate polymer breakdown, creating a cycle of continuous deterioration. Bio-SAH MPET3613 provides an effective and reliable solution by stabilizing PET materials against hydrolysis, acid degradation, and thermal stress.
Effective hydrolysis and acid degradation inhibition
Maintains intrinsic viscosity (IV) and molecular weight
Improves mechanical property retention (strength, toughness)
Masterbatch form for easy handling and uniform dispersion
Enhances processing stability during injection molding
Reduces defects caused by degradation (brittleness, cracking)
Excellent compatibility with PET resin
Bio-SAH MPET3613 is ideal for PET injection molding applications:
Engineering PET components
Electrical and electronic housings
Automotive parts
Industrial molded products
PET parts exposed to humidity and heat
The active stabilization components in MPET3613 react with carboxylic acid end groups generated during hydrolysis and thermal degradation. This reaction neutralizes catalytic degradation sites and suppresses further chain scission. As a result, the polymer maintains its molecular integrity, ensuring consistent processing behavior and long-term mechanical performance.
Recommended dosage: typically 1% – 3% depending on application requirements
Can be dry-blended with PET resin prior to injection molding
Compatible with standard PET processing conditions
Pre-drying of PET resin is strongly recommended
Store in a cool, dry environment to avoid moisture absorption. Keep packaging tightly sealed when not in use. Follow standard industrial safety procedures.
