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UV absorber 2908

Advantage:

  • UV absorber 2908 is a benzene acid ester type ultraviolet absorber, possessing dual functions of light stabilizer and antioxidant. It can absorb ultraviolet rays ranging from 280 to 380nm. 
  • It has the characteristics of good compatibility, low volatility, good dispersion, low migration, good acid and alkali resistance, high light stability, inhibition of color fading, and improvement of color fastness. It decomposes hydrogen peroxides through the free radical trapping mechanism and terminates the hydrogen peroxide oxidation chain reaction. 
  • It is suitable for PP, TPO, PE, soft PVC, ABS resins, epoxy resins, unsaturated resins, coatings, inks. The general dosage is 0.1-0.5%.‍

Applications:

Used in polyurethane products such as microcellular foams, traditional rigid foams, semi-rigid foams, flexible foams, fabric coatings, certain adhesives, sealants and elastomers, as well as polymers such as polyvinyl chloride and acrylic resins

Package: 

25KG cartons or drums

Storage and Transportation:

Keep container tightly closed and dry and storage in cool place.

Note: The data contained here are based on our current knowledge and experience. It is the responsibility of user to test our products before the final application.

Technical Specifications

  • ‍Product Name: UV absorber 2908
  • CAS No.: 67845-93-6
  • Chemical Name:3, 5-Di-tert-butyl-4-hydroxybenzoic acid hexadecyl ester
  • Molecular Formula: C31H54O3
  • Molecular Weight:474.7
  • Other Name:Songsorb 2908
  • Appearance: White powder ‍

Melting Point

58-65℃

Purity

≥99%

Ash

≤0.1%

Loss On Drying

≤0.5%

Density

0.94g/cm3

Recommended

 dosage

PU

PVC

Adhesives and sealants

0.2-1.0%

0.25-0.5%

0.5-1.0%

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