Select Your Region
- Manufacturer: SI Group
- Product Line: SI Group Phosphite Antioxidants
- Product: WESTON™ Liquid Phosphite Antioxidants
- Industries: Adhesives | Elastomers | Plastics
- Authorized Countries: Canada | Mexico | United States
WESTON™ 705
Nonylphenol-free phosphite antioxidant, designed as a drop-in replacement for TNPP with a 20% lower loading rate.
Quantity
Documents
Specifications
Appearance: Colorless liquid free of particulates
Phosphorus Content: 5.2%
Assay: > 98%
Specific Gravity (@ 25°C, @ 15°C): 1.004, 1.035
Acid Number: <0.5 mg KOH/g
Primary Chemistry:
Proprietary Phosphite
- Manufacturer: SI Group
- Product Line: SI Group Phosphite Antioxidants
- Product: WESTON™ Liquid Phosphite Antioxidants
- Industries: Adhesives | Elastomers | Plastics
- Authorized Countries: Canada | Mexico | United States
Manufacturer
Product Line
Industries
Authorized Countries
Canada
Mexico
United States
Overview
WESTON™ 705 is an industry pioneering phosphite stabilizer which is free of nonylphenol. It can be used in a variety of polymer systems such as HDPE, LLDPE, SBR, NBR, SBC, SBS, ABS, PVC.
WESTON™ 705 reduces both plate-out and gel formation by a factor of 10. Based on proprietary chemistry and technology, it has been developed to replace TNPP in food-contact applications.
WESTON™ 705 is excellent for use in polyols and polyurethane systems as alternative to TNPP or in applications with nonylphenol restrictions.
Specifications
Appearance: Colorless liquid free of particulates
Phosphorus Content: 5.2%
Assay: > 98%
Specific Gravity (@ 25°C, @ 15°C): 1.004, 1.035
Acid Number: <0.5 mg KOH/g
Primary Chemistry:
Proprietary Phosphite
Features & Benefits
- Nonylphenol-free
- Drop-in replacement for TNPP, able to reduce loading by 20% while matching TNPP performance
- Superior solubility in PE
- Compared to AO168/ALKANOX® 240
- Tenfold reduction in plate-out
- Tenfold reduction in gel formation
- 90% less additive blooming
- Threefold improvement in melt flow retention
- Allows for increased usage of regrind
- Threefold improvement in color retention upon exposure to NOx gas
- Broad food contact approvals
Problems Solved
High loading rate of TNPP and other phosphite antioxidants
Nonylphenol regulatory restrictions in formulations
Limited alternatives of TNPP antioxidants for use in food contact applications
Applications
Food packaging
Flexible foams and polyol formulations
Elastomeric polyurethane systems
Related Chemistries
Plastics
Related Functions
Adhesives
Related Processes
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.
SI Group Additives for Packaging Plastics
SI Group offers a broad range of plastic additives for the stability and durability of your packaging plastics. Learn more today!
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
SI Group Antioxidant Solutions for Polyurethanes (PUR)
SI Group offers one of the world’s largest stabilizer technology platforms for polyol and polyurethane applications.
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 - Canada
