Bomar Oligomers® BR-371MS

1 of 88 products in this brand
BR-371MS, a low molecular weight, difunctional, aliphatic polyether urethane methacrylate oligomer, is a great fit for coatings that require high tensile strength, extremely low color, superior hardness, scratch resistance, and weathering resistance. BR-371MS provdes very low color and a high viscosity, ideal for hard gel nail coatings, and offers reduced heat generation vs other high tensile strength materials.

Chemical Family: Urethane Acrylate/Isocyanate

Technical Data Sheet
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Knowde Enhanced TDS

Identification & Functionality

CASE Ingredients Functions

Features & Benefits

Product Highlights
  • High tensile strength
  • Extremely low color
  • Superior hardness
  • Low heat generation
  • Excellent adhesion to plastics
  • High Tg

Applications & Uses

Compatible Substrates & Surfaces
Base Chemicals End Uses
Recommended Application
  • Wood coatings
  • Rigid plastic coatings
  • Hard gel nail coatings
  • Rigid 3D printing resins

Properties

Uncured Properties
ValueUnitsTest Method / Conditions
Viscosity (60 °C)65,000cP
Pt-Co Color (APHA)25
Pt-Co Color25APHA
Refractive Index (25°C)1.496
Density (25°C)1.110g/cm3

Technical Details & Test Data

Typical Formulations
Test Formulation Name I30 I50 TM50 TP50 H50 HE30

BR-371MS

70 50 50 50 50 70
IBOA 30 50        
TMPA     50      
TPGDA       50    
HDDA         50  
HEMA           30

Omnirad™ 184

2 2 2 2 2 2
Viscosity, 25°C (CAP2000+)

33,000

2.800 11.000 900 400 5.300

 

Cured Mechanical Properties
Property I30 I50 TM50 TP50 H50 HE30
Tensile Strength, (psi, ASTM D882) 9.800

9.700

9.100

7.800

7.700

9.700
Elongation (%, ASTM D882) 4.6 4.4 3.6 5.6 3.4 6.4
Elastic Modulus (ksi, ASTM D882)

370

360

370

310

310

390

Durometer Hardness

89D

87D

91D

86D

86D

90D

Water Absorption, %(24 hrs)

0.20 0.18 0.4 0.35 0.25 0.80
MEK Double Rubs (#) >200 105 >200 >200 >200 >200
Tg(DMA) =110°C; Peak tan delta; cured with 2 phr of Irgacure® 184
Adhesion Properties
Substrate I30 I50 TM50 TP50 H50 HE30
Aluminum     XXX XX XXX XXX
Cold Rolled Steel            
Glass            
HDPE            
PET XXX XXX XXX XX XXX XXX
PMMA X   XXX XXX XXX XXX
Polycarbonate XX XX XXX XXX XXX X
PVC XXX XXX XXX XXX XXX XXX
Stainless Steel            

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

Viscosity Reduction with Reactive Diluents

Bomar Oligomers® BR-371MS - 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.