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BR-900 Series Oligomers.....

Multifunctional aliphatic urethane acrylates. These oligomers offer rapid cure and are ideal for coatings where premium performance is desired.
Cured films range from stiff to flexible - all with excellent abrasion, stain and chemical resistance plus good hydrolytic stability. 
They are used in the most demanding medical and electronic applications.

 
OLIGOMER PROPERTIES FORMULATED PROPERTIES IN 30% IBOA
2% Omnirad 481
Oligomer f Oligomer Type MW
Neat Oligomer Viscosity
Tg*
(°C)		 Viscosity
cP @25°C		 Tensile
Strength, psi		 Elong. %
@ break		 Durometer
(hardness)
BR-941
6
Aliphatic
Low
25,000 cP
@50°C
82
4400
3340
7
92D
BR-970
2
Aliphatic
Low
15,000 cP
@25°C
40
1500
3600
100
82D
BR-990
3
Aliphatic
Low
35,000 cP
@25°C
21
2400
2050
50
73D
BR-991
9
Aliphatic
Med
39,000 cP
@75°C
N/A
87000
7035
3
88A

f = (meth)acrylate functionality
*Glass transition temperature measured by DMA, peak tan delta.

MOLECULAR WEIGHT
Low:  less than 2000 glmol    MED:  2000-4000 glmol    HIGH:  greater than 4000 glmol


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