Description

Wingstay 100 is a high-performance, hindered phenolic antioxidant widely recognized for its exceptional effectiveness in protecting polymers against thermal and oxidative degradation. Its primary value lies in significantly extending the service life and maintaining the physical properties of sensitive materials during high-temperature processing and long-term use. This product is essential for manufacturers in the rubber, plastics, and synthetic fiber industries who require reliable stabilization for their products. The compound is supplied as a light-colored, free-flowing powder or flake for ease of handling and incorporation.

Application

• Rubber Industry: Critical antioxidant for synthetic rubbers like SBR, BR, NBR, and EPDM, used in tires, hoses, belts, and seals to prevent cracking and hardening.
• Plastics Stabilization: Protects polyolefins (PP, PE), polystyrene, and engineering plastics from oxidative degradation during extrusion, injection molding, and long-term aging.
• Adhesives and Sealants: Enhances the thermal stability and shelf-life of hot-melt and pressure-sensitive adhesives.
• Synthetic Fibers: Used as a spin finish additive or polymer additive to protect fibers like polypropylene and nylon from thermal yellowing and strength loss.
• Hydrocarbon Fuels and Lubricants: Acts as an antioxidant additive in fuels, oils, and greases to inhibit gum formation and viscosity increase.
• Food Contact Materials: Employed in compliant formulations for polymer articles intended for food packaging where regulatory approvals are met.

Basic Information

Product Name	Wingstay 100
CAS No.	64253-30-1
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	2,2'-Methylenebis(6-tert-butyl-4-methylphenol); Antioxidant 2246; AO 2246; MBMBP; 2,2'-Methylenebis(4-methyl-6-tert-butylphenol); Bis(2-hydroxy-3-tert-butyl-5-methylphenyl)methane; Wingstay 100 Antioxidant; Vulkanox BKF
EINECS	264-770-1

Quality Control

Our Wingstay 100 is manufactured under a strict quality management system to ensure batch-to-batch consistency and high performance. Every lot undergoes rigorous analytical testing, including assay, melting point, and color determination, to meet established industry specifications. A Certificate of Analysis (COA) documenting purity and key physical parameters is provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. Under these conditions, the product has excellent shelf stability.

Specification

Item	Specification
Appearance	White to light yellow crystalline powder or flake
Identification (IR)	Conforms to standard
Melting Point	125°C - 135°C
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Ash Content	≤ 0.1%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.