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Bomar Oligomers® BR-5541M

BR-5541M is a flexible polyether urethane methacrylate oligomer diluted in 20% IBOA with a low modulus, good adhesion to a variety of substrates, and excellent elasticity. The high molecular weight of the backbone structure offers improved elasticity and rebound versus similar high elongation materials. The low modulus of the material allows for a high degree of flexibility comparable to silicone-based materials such as BRS-14320S, but with improved compatibility and surface cure. The compressibility of the material also offers potential usage in gasket and sealing applications.

Brand: Bomar Oligomers (88 products)

Chemical Family: Urethane Acrylate/Isocyanate

Technical Data Sheet

Enhanced TDS

Knowde-enriched technical product data sheet

Identification & Functionality

Chemical Family
Urethane Acrylate/Isocyanate
Base Chemicals Functions
Oligomer
CASE Ingredients Functions
Oligomer
Technologies
Base Chemicals & Intermediates,
CASE Ingredients
Product Families
CASE Ingredients — Monomers & Intermediates
Oligomers
Base Chemicals & Intermediates — Monomers & Oligomers
Acrylics, Acrylates & Methacrylates,
Oligomers

Features & Benefits

CASE Ingredients Features
Excellent Adhesion,
Good Elasticity,
Good Elongation,
Good Surface Care,
High Rebound,
Improved Flexibility,
Improved Tear Strength,
Low Modulus

Applications & Uses

Compatible Substrates & Surfaces
Plastics
Base Chemicals End Uses
Inks
Recommended Applications
  • Plastic bonding adhesives
  • Cure-in-place gaskets and sealants
  • Flexible 3D printing resins

Properties

Uncured Properties
ValueUnitsTest Method / Conditions
Density (25 °C)1g/cm3-
Pt-Co(APHA) Color19--
Pt-Co Color19APHA-
Refractive Index (25°C)1.47--
Viscosity (60 °C)24000cP-

Technical Details & Test Data

Typical Formulations
Test FormulationName I30 I50 TM50 TP50 H50 HE30
BR-5541M 70 50 50 50 50 70
IBOA 30 50        
TMPTA     50      
TPGDA       50    
HDDA         50  
HEMA           30
Irgacure® 184 2 2 2 2 2 2
Viscosity, 25°C  23,000 4,800 15,000 5,600 3,400 18,000
Cured Mechanical Properties :
Property I30 I50 TM50 TP50 H50 HE30
Tensile Strength,psi 440 2,300 2,800 1,600 2,200 1,000
Elongation, % 270 400 4.0 15.7 10.3 400
Elastic Modulus,ksi 0.43 5.4 100 40 50 0.79
Durometer 53A 30D 76D 59D 62D 71A
Water Absorption, % (24 hrs) 0.52 0.24 0.75 0.66 0.55 2.98
MEK Double Rubs (#) 60 19 >200 30 57 35
T g (DMA ) =-45°C ;Peaktan delta; cured with 2 phr of Irgacure ® 184
Adhseion Properties : 
Substrate I30 I50 TM50 TP50 H50 HE30
ABS   XX XXX X X  
Aluminum   XX        
Cold Rolled Steel   XX        
Glass   XX        
HDPEPET   XX XX XX X  
PMMA   XX        
Polycarbonate X XX XXX XX XXX  
PolypropylenePVC   XX XXX X XX  
Stainless Steel   XX        

 

X Recommended XX Highly Recommended XXX Strongly Recommended

Viscosity Reduction with Reactive Diluents

Dymax Corporation Bomar BR-5541M Viscosity Reduction with Reactive Diluents

Safety & Health

Safety 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.