Select Your Region
WESTON™ TPP
WESTON™ TPP is a versatile aryl phosphite ester antioxidant that regulates viscosity, improves color, and prevents scorch in a variety of polymers.
Quantity
Documents
- Manufacturer: SI Group
- Product Line: SI Group Phosphite Antioxidants
- Product: WESTON™ Liquid Phosphite Antioxidants
- Industries: Adhesives | Plastics
- Authorized Countries: Canada | Mexico | United States
Fulfilled By ChemPoint
Fulfilled By ChemPoint
Manufacturer
Product Line
Authorized Countries
Canada
Mexico
United States
Overview
WESTON™ TPP is a phosphite ester antioxidant that can be used in a variety of materials, including adhesives, coatings, styrenics, and polyurethanes, to improve color stability, prevent scorch, and regulate viscosity. It acts as a catalyst adjuvant when used in polyolefins.
Specifications
Appearance: Clear liquid
Specific gravity @ 25°C: 1.180–1.186
Acid number: 0.20 mg KOH/g max
Refractive index @ 25°C: 1.5880–1.5900
Phosphorus content: 10%
Color (APHA, Pt-Co): 50 max
Molecular weight: 310 g/mol
Flash point (closed cup): 146°C
Viscosity @ 38°C: 10.2 cps
Density @ 25°C: 1.18 g/mL
Vapor pressure @ 5 mm Hg: 205°C
Soluble: Most aprotic organic solvents
Insoluble: Water
Primary Chemistry:
Triphenyl phosphite
Features & Benefits
- Regulates viscosity and improves color stability in polyester
- Catalyst adjuvant in polyolefins
- Prevents scorch during curing in polyurethanes
Problems Solved
Scorch or color-stability issues in coatings, adhesives, styrenics, or polyurethanes
Viscosity changes or limited control in polyester formulations
Applications
Styrenics
Engineering thermoplastics
Related End Markets
Plastics
Related Functions
Adhesives
SI Group Phosphite Antioxidants Articles
SI Group WESTON™ Liquid Phosphites
The portfolio of WESTON™ liquid phosphite antioxidants offers excellent synergism, improved color, and processing stability and offers a variety of food contact approvals depending on your plastic applications.
SI Group WESTON™ Phosphite Antioxidants
The SI Group portfolio of WESTON™ phosphite antioxidants protects plastics and elastomers from peroxide decomposers and offers excellent synergism with primary antioxidants, such as hindered phenols.
Stabilization and Processing of Recycled Plastics
Compounders and recyclers face multiple challenges with the stabilization and processing of recycled plastics. Learn more and explore our solutions
Have questions? Can't find the right product?
Ask our Experts
Have questions? Can't find the right product?
Ask our ExpertsWhen You're Ready
When You're Ready
View Support Articles
Talk to an Expert
Ask a Question
Are you in the correct region?
We’ve detected that you are located in a different region than the region selected on the website. Would you like to change your region?
Current Region: English - Mexico
