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Bomar Oligomers® BR-302

1 of 88 products in this brand
Bomar BR-302 is a linear aromatic urethane diacrylate, typically used in coatings and adhesives applications where yellowing constraints are not present. The backbone and aromatic content of BR-302 offer excellent chemical resistance and toughness, combined in an affordable oligomer. It is mainly used in Interior Coatings and Floor Coatings.

Chemical Family: Urethane Acrylate/Isocyanate

Technical Data Sheet
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Knowde Enhanced TDS

Identification & Functionality

CASE Ingredients Functions
Technologies

Features & Benefits

Product Highlights
  • Excellent chemical resistance
  • Exhibits hydrolytic stability
  • Imparts toughness
  • Improves adhesion
  • Low cost

Applications & Uses

Applications
  • Interior coatings
  • Floor coatings

Properties

Typical Properties
ValueUnitsTest Method / Conditions
FluorescingBlue--
RheologyNewtonian--
Cured Properties
ValueUnitsTest Method / Conditions
Durometer HardnessD80--
Elongation at Break13.0%-
Glass Transition Temperature (Tg)11.0°C-
Modulus of Elasticity640 [93,000]MPa (psi)-
Nominal Viscosity600.0cP-
Tensile at Break1200psi-
Uncured Properties
ValueUnitsTest Method / Conditions
Density (25°C)1.1g/cm³
Pt-Co Color (APHA)50.0--
Refractive Index (25°C)1.466--
Viscosity at 50°C15000.0cP-
Viscosity at 60°C5600.0--

Technical Details & Test Data

Typical Formulations

Typical Formulations
Test Formulation Name 130 150 TM50 TP50 H50 HE30
BR-742M 70 50 50 50 50 70
IBOA 30 50        
TMPTA     50      
TPGDA       50    
HDDA         50  
HEMA           30
Omnirad 184 2 2 2 2 2 2
Viscosity, 25°C* 6,000 700 3,800 800 300 -

 

CURED MECHANICAL PROPERTIES
Property I30 I50 TM50 TP50 H50
Tensile Strength, psi** 1,240 2,310 4,380 1,430 2,760
Elongation, %** 102.5 106 6 10.5 9.5
Elastic Modulus, ksi** 5.57 55.9 130.7 42.8 79.2
Durometer Hardness 41D 70D 85D 67D 73D
MEK Double Rubs (#) 10 6 >200 54 >200
T g (DMA ) =11°C;Peak tan delta; cured with 2 phr of Omnirad™ 481
** Per ASTM D882

Brookfield – CAP2000+ @ 25 °C

ADHESION PROPERTIES
Substrate I30 I50 TM50 TP50 H50
ABS         XX
Acrylic X        
Aluminum   XXX      
Cold Rolled Steel XX XX      
Glass   X      
HDPE          
Polycarbonate   X     XX
Stainless Steel X XXX     XX

X Recommended XX Highly Recommended XXX Strongly Recommende

Viscosity Reduction With Reactive Diluents

    Dymax Corporation Dymax Corporation BR-302 Viscosity Reduction With Reactive Diluents

Safety & Health

General Information

This product is intended for industrial use only. Keep out of the reach of children. Avoid breathing vapors. Avoid contact with skin, eyes, and clothing. Wear impervious gloves. Repeated or continuous skin contact with uncured material may cause irritation. Remove material from skin with soap and water. Never use organic solvents to remove material from skin and eyes. For more information on the safe handling of this material, please refer to the Safety Data Sheet before use.