NAUGARD™ PS 48 stabilizer is a liquid hindered phenolic for use as an antioxidant across many polyurethane (PUR) and polyol applications. NAUGARD™ PS 48 has outstanding polymer protection against long-term aging during processing.
NAUGARD™ PS 48 stabilizer is a low volatility and low viscosity primary antioxidant that provides excellent overall protection against heat and oxygen exposure. Additionally, NAUGARD™ PS 48 provides excellent scorch protection for coatings, adhesives, sealants, and rigid polyols. NAUGARD™ PS 48 is a primary antioxidant and can be used in combination with phosphite or aminic boosters for slabstock polyols, depending on the application.
Appearance: Clear Liquid
Viscosity cSt @ 40 deg C: 110
APHA Color: < 100
Specific Gravity: @ 25 deg C 0.985
Moisture: % 0.01
Assay: % 99
Liquid Stabilizer, Primary Antioxidant (Standard Phenolic)
BHT free antioxidant
Low viscosity and low volatility
Excellent long-term protection against degradation due to heat and oxygen
Effective scorch reducer in flexible polyurethane (PUR) foam production
Good solubility in non-polar substrates
Easy drop in solution at typical use levels of 0,15-0,5 php
Especially powerful when used in synergistic combination with other liquid aminic stabilizers such as NAUGARD™ PS 30
High volatility of traditional polyol antioxidants
Thermal degradation and scorch in the manufacturing of flexible polyurethanes
Flexible polyurethanes (PUR) and polyol formulations
Polyether and polyester flexible foams
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