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Bomar Oligomers® BR-990

1 of 88 products in this brand
Bomar BR-990, an aliphatic polyether urethane triacrylate, is a more flexible option from the BR-900 series of high-purity oligomers. BR-990 can be used effectively in performance coatings applications needing a greater degree of flexibility than is offered by higher functionality materials of the same product line. In addition, BR-990 offers one of the lowest viscosity profiles of any urethane acrylate. It is mainly used as coatings and inks.

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
  • Enhances Flexibility
  • Provides Hardness & Strength
  • Exhibits Hydrolytic Stability
  • Abrasion Resistant
  • Non-Yellowing
  • Gloss Finish
  • Improves Weatherability

Applications & Uses

Applications
  • Flexible hard coatings
  • Plastics adhesives

Properties

Typical Properties
ValueUnitsTest Method / Conditions
FluorescingUltra-Red--
RheologyNewtonian--
Cured Properties
ValueUnitsTest Method / Conditions
Durometer HardnessD60--
Elongation at Break170.0%-
Glass Transition Temperature (Tg)22.0°C-
Modulus of Elasticity641 [93,000]MPa (psi)-
Nominal Viscosity1200.0cP-
Tensile at Break2,100psi-
Uncured Properties
ValueUnitsTest Method / Conditions
Density (25°C)1.15g/cm³
Pt-Co Color (APHA)50.0--
Refractive Index (25°C)1.492--
Viscosity34000.0cP (at 20 rpm)-
Viscosity at 25°C35000.0cP-

Technical Details & Test Data

Typical Formulations

Adhesion Properties
Substrate I30 I50 TM50 TP50 H50 HE30
ABS XXX XXX XXX XXX XXX XX
Aluminum            

Cold Rolled Steel

  X       XX
Glass   X        
HDPE            
PET XXX XXX XXX XXX XXX XX
PMMA XX XXX XXX XXX XX X
Polycarbonate XX XXX XXX XXX XXX X
Polypropylene   X        
PVC XXX XXX XXX XX XXX X
Stainless Steel XXX XX        

X Recommended XX Highly Recommended XXX Strongly Recommended

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* 2,100 420 2,000 480 220 940

Brookfield – CAP 2000+ @ 25°C.

Cured Mechanical Properties
Property I30 I50 TM50 TP50 H50 HE30

Tensile Strength, psi**

2,100 4,100 5,000 1,500 2,300 700
Elongation, 6** 40 65 4 12 10 35

Elastic Modulus, ksi*

9.5 140 220 35 70 25

Durometer Hardness

61D 80D 86D 74D 77D 44A

Water Absorption, 96 (24 hrs)

0 0.28 0.45 1 0 2

MEK Double Rubs (#)

30 20 >200 64 >200 25
Tg(DMA)=29°C; Peak tan delta; cured with 2 phr of Omnirad® 184

** Per ASTM D882 – Not Tested || Incompatible X Unable to Measure

Viscosity Reduction With Reactive Diluents

Dymax Corporation Dymax Corporation BR-990 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.