Hostavin® VSU powder

Hostavin® VSU powder is an Oxalanilide UV absorber, a low volatile polar substance with good heat stability. It is resistant to discoloration with metal ions, e.g. from polymerization catalyst residues, fillers or from contact surfaces. Hostavin® VSU powder absorbs the UV light especially in the UV-B range, and is therefore a stabilizer of choice for combinations with optical brighteners and for UV curing systems.

Principal: Clariant Additives

Functions: UV Absorber, UV Absorber

Chemical Family: Diamides

End Uses: Clearcoat, Solventborne Coating

Compatible Polymers & Resins: Acrylates, Alkyd-Melamine, Polyamides, Polycarbonates (PC), Polyesters, Polyurethanes (PU), Polyvinyl Chloride (PVC)

Labeling Claims: Butyl Benzyl Phthalate (BBP)-free, Cadmium-free, Conflict Minerals-free, DEHP (Diethylhexylphthalate) Free, Dibutyl Phthalate (DBP)-free, Diisobutyl Phthalate (DIBP)-free, Hexavalent Chromium-free, Lead-free, Mercury-free, Polybrominated Biphenyls (PBB)-free, Polybrominated Diphenyl Ethers (PBDEs)-free

Features: Good Heat Stability, Low Volatility, Prevents Discoloration

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Enhanced TDS

Identification & Functionality

Blend
No
CASE Ingredients Functions
Chemical Family
Chemical Name
Function
UV Absorber
Plastics & Elastomers Functions
Product Code
MITM02951
Single Ingredient
Yes
Synonyms
2-Ethoxy-2′-ethyloxalic acid bisanilide, 2-Ethoxy-2′-ethyloxanilide, 2-Ethyl-2′-ethoxyoxalanilide, 2′-Ethoxy-2′′-ethyloxanilide, Chiguard 1033, Hostavin VSU, N 1-(2-Ethoxyphenyl)-N 2-(2-ethylphenyl)ethanediamide, N′-(2-Ethoxyphenyl)-N-(2-ethylphenyl)oxamide
Technologies
Product Families

Features & Benefits

Applications & Uses

Properties

Color (Properties)
Physical Form

Regulatory & Compliance

Certifications & Compliance
Contains any chemicals listed on Prop 65 (including impurities, residues, catalysts, monomers, and by-products and excluding heavy metals)?

Technical Details & Test Data

Technical Data

Application Coatings:

  • Hostavin® VSU powder can be used in solventborne coatings and general industrial coatings to provide standard UV stabilization performances.
  • In particular, it is recommended for UV cured systems.
  • To ensure optimal stabilization, clear coats require not only UV absorber but also HALS.
  • Depending on the binder, a traditional HALS, e.g. Hostavin® 3055 or Hostavin® 3065, or a non-basic HALS, e.g. Hostavin® 3058, should be used in combination with Hostavin® VSU powder.

Application Plastics:

  • Hostavin® VSU powder is recommended as a UV absorber especially for use in polyamides, polycarbonates, PVC, acrylates, alkyd/melamines, PU, and polyesters.

 

Packaging & Availability

Packaging Type

Principal Information

Group Principal Number
S000004
Principal

Storage & Handling

Storage Conditions
  • For best shelf life store this product in a dry area at normal ambient temperatures.
  • Minimum shelf life is three years from the date of shipping when stored in cool and dry conditions, in the original sealed containers.

Other

Appearance
White powder
Appearance (SDS)
Powder
Color (SDS)
White to light yellow
Explosive Nature (SDS)
Non explosive
Item Number
Other Hazards
None known
USA/DOT UN Number
Not Applicable
Optical Properties
ValueUnitsTest Method / Conditions
Color Scalemax. 45.0HazenHazen Color Scale 5% in dioxane
Color Scalemax. 45.0HazenInternal Method 5% in dioxane
Shelf Life & Stability
ValueUnitsTest Method / Conditions
Shelf Life3.0yr
Material Composition
ValueUnitsTest Method / Conditions
Active Contentmin. 98.0%Gas Chromatography
Active Contentmin. 98.0%Internal Method by area
Solid Contentmax. 0.2%Internal Method at 105°C, 2 hr
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Boiling Point (SDS)541.0°F
Decomposition Temperature (SDS)min. 734.0°FDifferential Scanning Calorimetry heating rate: 3 K/min
Decomposition Temperature (SDS)min. 734.0°FClosed Cup heating rate: 3 K/min
Deflagration Index (SDS)293.0bar.m/s
Density (SDS)1.26g/cm³ISO 1183 at 23°C
Electrical Conductivity (SDS)0.0μS/cm
Median Particle Size (SDS)16.0µmLaser Diffraction
Melting Point (SDS)257.0°FDifferential Scanning Calorimetry
Minimum Ignition Energy (SDS)7.0-10.0MJWith Inductive Electrical Resistance
Solubility In Toluene (SDS)60.0g/L