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Bomar Oligomers® BR-344

1 of 88 products in this brand
Bomar BR-344, a high molecular weight, difunctional, aliphatic polyether urethane acrylate oligomer, is a cost-effective choice for coatings formulations which require weathering durability and non-yellowing characteristics. Formulations with BR-344 result in flexible yet durable, abrasion resistant, non-yellowing systems of moderate- to low-viscosity. It is best suitable for roof 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

Features
  • Exhibits hydrolytic stability
  • Enhances Flexibility
  • Develops Weatherability
  • Gloss Finish
  • Oil & Chemical Resistant
  • Non-Yellowing
  • Promotes Abrasion Resistance

Applications & Uses

Applications
  • Roof coatings
  • Floor coatings

Properties

Typical Properties
ValueUnitsTest Method / Conditions
FluorescingBlue--
RheologyNewtonian--
Cured Properties
ValueUnitsTest Method / Conditions
Durometer HardnessD70--
Elongation at Break120.0%-
Glass Transition Temperature (Tg)-48.0°C-
Modulus of Elasticity300 [44,000]MPa (psi)-
Nominal Viscosity300.0cP-
Tensile at Break95psi-
Uncured Properties
ValueUnitsTest Method / Conditions
Density (25°C)1.02g/cm³
Pt-Co Color (APHA)16.0--
Refractive Index (25°C)1.459--
Viscosity20000.0cP (at 20 rpm)-
Viscosity at 25°C20000.0cP-

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* 2,500 600 2,300 700 300 1,700

* Brookfield – CAP 2000+ @ 25°C.

Cured Mechanical Properties
Property I30 I50 TM50 TP50 H50 HE30

Tensile Strength, psi**

95 700 2,000 1,300 1,600 270
Elongation, 6** 75 230 3 16 9 190

Elastic Modulus, ksi*

0.19 11 85 25 35 0.26

Durometer Hardness

35A 54A 69D 45D 50D 20A

Water Absorption, 96 (24 hrs)

0.73 0.46 1.09 0.95 0.77 5.49

MEK Double Rubs (#)

25 17 130 20 15 10
Tg(DMA)=-46°C; Peak tan delta; cured with 2 phr of Omnirad® 184

Per ASTM D3363 Brookfield –CAP2000+ @25 °C

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

 

Viscosity Reduction With Reactive Diluents

        Dymax Corporation Dymax Corporation BR-344 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.