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Bomar Oligomers® BRC-443

1 of 88 products in this brand
Bomar™ BRC-443 is a difunctional, hydrophobic urethane acrylate which can be formulated to be used in heavy-duty industrial and commercialapplications. The resulting tough film makes an effective non-yellowing, protective single-coating that extends the substrate’s use-life. The low water absorption and acid and alkaline resistance make this oligomer perfect for the following industries: aerospace, appliance, automotive, electronics, industrial, medical device, metal finishing, and UV-curable inks & coatings. BRC-443 exhibits retention of mechanical properties after exposure to high temperatures (200oC for 30 minutes). In addition to the adhesion properties below, BRC-443 also shows excellent adhesion to ABS, PVC, PMMA, Nylon-6, and Polystyrene

Chemical Family: Urethane Acrylate/Isocyanate

End Uses: Radiation Curable Coating

Technical Data Sheet
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Knowde Enhanced TDS

Identification & Functionality

CASE Ingredients Functions
Technologies

Features & Benefits

Product Highlights
  • Improves Adhesion
  • Increases Weatherability
  • Enhances Hardness
  • Provides Abrasion Resistance
  • Non-Yellowing
  • Gloss Finish
  • Low Water Absorption
  • Provides Acid and Alkaline Resistance
  • High Temperature Resistance

Applications & Uses

Compatible Substrates & Surfaces
Cure Method
Recommended Application
  • Coatings and Inks for Steel
  • Coatings and Inks for Plastic
  • Coatings and Inks for Glass

Properties

Uncured Properties
ValueUnitsTest Method / Conditions
Viscosity (60 °C)30,000cP
Pt-Co Color (APHA)20
Pt-Co Color20APHA
Refractive Index (25°C)1.48
Density (25°C)1.09g/cm3

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* 15,000 1,700 - 1,900 800 4,200

* Brookfield – CAP 2000+ @ 25°C.

Cured Mechanical Properties

Cured Mechanical Properties
Property I30 I50 TM50 TP50 H50 HE30

Tensile Strength, psi**

1,500 1,600 - 1,300 1,400 1,200
Elongation, 6** 220 95 - 14 7 180

Elastic Modulus, ksi*

0.8 9.5 - 25 30 1

Durometer Hardness

58D 72D - 70D 74D 40D

Water Absorption, 96 (24 hrs)

0.3 0.2 - 0.4 0.3 2

MEK Double Rubs (#)

18 17 - 20 14 15
Tg(DMA)=153°C; Peak tan delta; cured with 2 phr of Omnirad® 184

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

Adhesion Properties
Substrate I30 I50 TP50 H50 HE30
ABS          
Aluminum XXX XXX      
Cold Rolled Steel XXX XXX X X  
Glass XXX XXX      
HDPE          
Polycarbonate XXX XXX XX XXX  
Stainless Steel XXX XXX      

X - Recommended, XX - Highly Recommended, XXX - Strongly Recommended

Viscosity Reduction with Reactive Diluents

Dymax Corporation Bomar BRC-443 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.