Bomar Oligomers® BRC-843D

1 of 88 products in this brand

BRC-843D is a difunctional, hydrophobic urethane acrylate which can formulated to be in heavy—duty industrial and commercial applications. The resulting tough film makes an effective, non-yellowing, protective single coating that extends the substrates use-life. The low water and alkaline resistance make this oligomer perfect for the following industries: aerospace, appliance, automotive, cosmetic electronic, industrial, medical device, metal finishing, and IN-curable inks 8 coatings BRC-843D exhibits retention of mechanical properties after exposure to high temperatures (200T for 30 minutes). In addition to the adhesion properties listed in the table BRC-843D also shows excellent adhesion to ABS, PVC, PMMA and polystyrene.

Chemical Family: Urethane Acrylate/Isocyanate

Technical Data Sheet
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Knowde Enhanced TDS

Identification & Functionality

CASE Ingredients Functions
Technologies

Features & Benefits

Features
  • Low MeHQ levels
  • Improves adhesion
  • Enhances hardness
  • High temperature resistance
  • Increases weatherability
  • Provides abrasion resistance
  • Provides alkali resistance
  • Low water absorption

Applications & Uses

Compatible Substrates & Surfaces
Applications
  • Nail gels
  • Coatings and inks for steel
  • Coatings and inks for plastic
  • Coatings and inks for glass

Properties

Uncured Properties
ValueUnitsTest Method / Conditions
Solids (butyl/ethyl acetate blend)24%
Tack Free Timemin. 1.3
Viscosity (at 60°C)4200cP

Technical Details & Test Data

Typical Formulations

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

Cold Rolled Steel

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

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* 5,400 930 1,000 450 2,200

* Brookfield – CAP 2000+ @ 25°C.

Cured Mechanical Properties
Property I30 I50 TM50 TP50 H50 HE30

Tensile Strength, psi**

3,200 3,600 - 3 3,500 1,800
Elongation, 6** 210 120 - 17 9 180

Elastic Modulus, ksi*

1.6 20 - 40 65 2

Durometer Hardness

60D 75D - 70D 75D 60D

Water Absorption, 96 (24 hrs)

0.4 0.3 - 0.5 0.4 2

MEK Double Rubs (#)

10 15 - 50 80 50
Tg(DMA)=45°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

Bomar Oligomers® BRC-843D - 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.