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Bomar Oligomers® BR-3747AE

1 of 88 products in this brand
BOMART BR-3747AE is a difunctional, flexible, aliphatic polyether urethane acrylate. In addition to our typical substrates, BR-3747AE provides adhesion to variety of unusual substrates: polypropylene, high-density polyethylene (HDPE), and poly(vinyl chloride) (PVC). This unique product adheres well to a variety of metals, glass, and plastics. It is also an excellent candidate for consideration in UV light-curable PSA as a co-oligomer.

Chemical Family: Urethane Acrylate/Isocyanate

End Uses: Pressure Sensitive Adhesive

Technical Data Sheet
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Knowde Enhanced TDS

Identification & Functionality

CASE Ingredients Functions
Technologies

Features & Benefits

Product Highlights
  • Enhances Flexibility
  • Non-Yellowing
  • Improves Adhesion
  • Provides Toughness
  • Adheres to a wide range of Substrates

Applications & Uses

Adhesive & Sealant Type
Recommended Applications
  • Oligomer for Adhesion Promotion
  • UV Pressure Sensitive Adhesives (PSAs)

Properties

Uncured Properties
ValueUnitsTest Method / Conditions
Density (25 °C)1.1g/cm3
Pt-Co(APHA) Color50
Refractive Index (25°C)1.46
Viscosity (50 °C)25000cP

Technical Details & Test Data

Typical Formulations

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

Cold Rolled Steel

X XXX        
Glass X XXX   X    
HDPE            
PET X XXX        
PMMA X XXX        
Polycarbonate X XXX   X    
Polypropylene   XXX        
PVC X XXX        
Stainless Steel 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* 12,000 2,300 - 2,500 - -

* Brookfield – CAP 2000+ @ 25°C.

Cured Mechanical Properties
Property I30 I50 TM50 TP50 H50 HE30

Tensile Strength, psi**

185 800 - 600 - -
Elongation, 6** 400 300 - 25 - -

Elastic Modulus, ksi*

0.04 0 - 4 - -

Durometer Hardness

40A 72A - 40D - -

Water Absorption, 96 (24 hrs)

- - - - - -

MEK Double Rubs (#)

- - - - - -

Tg(DMA)=-49°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® BR-3747AE - 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.