Bomar Oligomer Product
UV/EB Oligomer

BDT-4330

BDT-4330: 30 Functional Thioether Dendritic Acrylate Oligomer

BDT-4330 is a dendritic acrylate with an average functionality of 30. The hyper-branched structure of BDT-4330 imparts the unique combination of low diluted viscosity with unmatched chemical and thermal resistance, which is ideal in applications where withstanding exposure to the harshest conditions is paramount. Great for high-temperature applications because thermogravimetric analysis indicates the oligomer doesn’t decompose until 397°C.

Neat Properties
Property Value
Viscosity cP (60ºC) 1,500
Pt-Co (APHA) Color 30
Refractive Index (25ºC) 1.497
Density, g/cm3 (25ºC) 1.21
Monomer Dilution Properties
Value
Property I30 I50 TM50 TP50 H50 HE30
Durometer Hardness 94D 93D 96D 91D 93D 88D
Elastic Modulus (GPa [ksi]) 2,413.2 [350] 2,551.1 [370] 2,620.0 [380] 2,137.4 [310] 1,723.7 [250] 2,964.7 [430]
Elongation (%) 1.7 2.7 0.9 1.3 2.1 1.6
MEK Double Rubs (#) >200 >200 >200 >200 >200 >200
Tensile Strength (MPa [psi]) 38.6 [5600] 56.5 [8200] 22.8 [3300] 25.5 [3700] 31.0 [4500] 43.4 [6300]
Water Absorption (%) 24hrs 0.45 0.35 0.62 0.8 0.46 0.77
Viscosity (cP) 1,800 @ 25ºC 230 @ 25ºC 2,000 @ 25ºC 300 @ 25ºC 9,600 @ 25ºC 600 @ 25ºC

Features

  • Excellent chemical resistance
  • Excellent thermal resistance
  • Low diluted viscosity
  • Abrasion and scratch resistance
  • Low shrinkage for a highly functional product
  • Rapid cure
  • Low oxygen inhibition
  • Tin-free

Applications

  • Hard, protective coatings
  • Overprint varnishes
  • Printing inks
  • Cure speed enhancement for
  • UV applications
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