Description

Wingstay 100 is a high-performance, hindered phenolic antioxidant widely recognized for its effectiveness in protecting polymers and elastomers from oxidative degradation. Its primary value lies in its ability to significantly extend the service life and maintain the physical properties of materials exposed to heat, light, and mechanical stress during processing and use. This makes it an essential additive for manufacturers in the rubber, plastics, and synthetic fiber industries, where product durability and color stability are critical.

Application

• Rubber Industry: Primary antioxidant for synthetic rubbers like SBR, NBR, and polychloroprene to prevent cracking and maintain elasticity.
• Plastic Stabilization: Protects polyolefins (e.g., PP, PE), PVC, and engineering plastics from thermal oxidation during extrusion and molding.
• Adhesives and Sealants: Enhances the shelf-life and performance stability of pressure-sensitive and hot-melt adhesives.
• Synthetic Fibers: Used in the production of polyamide and polyester fibers to prevent yellowing and strength loss.
• Petroleum Products: Acts as an antioxidant in lubricating greases and transformer oils.
• Food Contact Materials: Suitable for use in polymer applications that comply with relevant food contact regulations.

Basic Information

Item	Details
Product Name	Wingstay 100
CAS No.	50864-70-5
Molecular Formula	C29H44O2
Molecular Weight	424.66 g/mol
Synonyms	2,2'-Methylenebis(6-tert-butyl-4-methylphenol); Antioxidant 2246; AO 2246; MBMBP; 2,2'-Methylenebis(4-methyl-6-tert-butylphenol); Bis(3-tert-butyl-2-hydroxy-5-methylphenyl)methane; Goodrite 3125; Vianol 2246; Nonox WSP; Wingstay 100 Antioxidant
EINECS	256-719-7

Quality Control

Our Wingstay 100 is manufactured under a stringent quality management system to ensure batch-to-batch consistency and high purity. Quality is verified through a series of analytical tests including HPLC assay, melting point determination, and color analysis. A comprehensive Certificate of Analysis (COA) documenting all specification 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 sources and incompatible materials. The product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0 %
Melting Point	125 - 130 °C
Loss on Drying	≤ 0.5 %
Ash Content	≤ 0.1 %
Color (APHA)	≤ 100

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