Eversorb® HP1 is an odorless liquid light stabilizer composed of bis(1,2,2,6,6-pentamethyl-4-piperidyl) sebacate, methyl 1,2,2,6,6-pentamethyl-4-piperidyl sebacate, and 3-(2H-benzotriazolyl)-5-(1,1-di-methylethyl)-4-hydroxy-benzenepropanoic acid octyl esters. It is utilized in both CASE ingredients and plastics & elastomers applications. Designed for hybrid polymers such as silyl-terminated polyether and SPUR types, this liquid stabilizer effectively reduces polymer degradation caused by UV light, preventing yellowing, cracking, and the loss of mechanical and viscoelastic properties.

Features: Excellent Cracking Resistance, Good Mechanical Resistance, Low Initial Color, Low Yellowing Properties, Odorless, Viscoelastic

Enhanced TDS

Identification & Functionality

Features & Benefits

Materials Features
Product Advantages
  • Highly effective UV absorption
  • Easy to incorporate
  • Highly compatible in SMP resin
  • Low initial color

Applications & Uses

Use Level
1 - 3 phr ( base on resin solid), 0.5 - 1.0 phr (highly pigments system)
Recommeded Applications
  • For highly pigments system 0.5 ~ 1.0 phr
  • For opaque or crystal system 1.0 ~ 3.0 phr

Properties

Physical Form
Appearance
Clear, yellow liquid
Physical Properties
ValueUnitsTest Method / Conditions
Chemical TypeBlend & mixture--
Typical Properties
ValueUnitsTest Method / Conditions
Densityapprox. 1.0g/cc-
Viscosity (at 20°C)approx. 2000cPs-
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
pH Value (at 20°C, 1% suspension in water)7 - 8--
Solubility in Water (at 20°C)max. 0.1%-
Density (at 20°C)1.08g/cc-
Vapor Pressure (at 20°C)1.0E-⁴Pa-
Flash Pointmin. 115°C-
Boiling Pointmin. 400°C-
OdorNone--
ColorYellow--
Physical FormLiquid--
Solubility Data
ValueUnitsTest Method / Conditions
1-Methoxy-2-propylacetate Solubility (at 25°C)min. 50g/100g solvent-
Xylene Solubility (at 25°C)min. 50g/100g-
Butyl Acetate Solubility (at 25°C)min. 50g/100g-
Butylcarbitol Solubility (at 25°C)min. 50g/100g-
Methyl Ethyl Ketone Solubility (at 25°C)min. 50g/100g-
Water Solubility (at 25°C)max. 0.01g/100g-

Technical Details & Test Data

TGA scans

5% weight loss: 235.5°C

Eversorb® EP4 - Storage Conditions - 1

Experiments

Light stability Test (1)

  • Sample: STPE type hybrid polymer resin
  • Lamp : 300W metal light
  • Test temp: 50°C Test time: 240hrs
  • Additive: 1% Eversorb HP1
  • Unit: Delta yellowness index (∆YI)

 Eversorb® HP1 - Experiments - 1
Light stability Test (2)

  • Sample: Crystal STPE hybrid polymer sealant
  • Lamp : ASTM G154-1(340nm UVA lamp)
  • Test temp: 50°C Test time: 1000hrs
  • Additive: 2% Eversorb HP1
  • Unit: Delta yellowness index (∆YI)
  Delta Yi
24hrs 500hrs 1000hrs
Blank 30 Decomposed
Eversorb® HP1 (2%) 0.78 6.2 25

 

Storage & Handling

Storage Conditions

Eversorb® HP1 should be capped properly after using and stored in a dry and dark place without any light exposure.