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BR-400 Series Oligomers.....

Difunctional and trifunctional polyester urethane acrylates. The aliphatic oligomers cure rapidly to tough, non-yellowing films with good adhesion to a variety of substrates.
The aromatic oligomers provide similar physical properties to that of the aliphatics, but are not recommended for applications where a non-yellowing film is critical.
Coatings exhibit excellent oil and chemical resistance.

 
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-403
2
Aromatic
High
5,500 cP
@50°C
-20
       
BR-406
3
Aromatic
Low 
32,000 cP
@50°C
70 
9500 
3975
19 
85D
BR-441
2 
Aliphatic
Low
75,000 cP
@50°C
71 
16600 
6900 
10 
87D 
BR-441PM
2 
Aliphatic
Med
85,000 cP
@50°C
92
17250
7620
4
86D 
BR-446
3
Aliphatic
Low
46,500 cP
@50°C
67
12250 
4250 
10
84D 
BR-471

2
Aliphatic

Low

150,000 cP
@50°C

62

25200

6900

12

88D

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

2009
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