

| Product performance | Boraychem | American D company | Japan U company |
|
Solid content, Wt% |
15-20 |
15-18 |
15-18 |
|
Solvent |
NMP |
NMP |
NMP |
|
Viscosity., cP |
2000-6000 |
2000-6000 |
2000-6000 |
|
Td (1wt%) |
550 |
550 |
550 |
|
CTE(100-250oC) |
3-8 |
3-10 |
3-8 |
|
Breaking strength, MPa |
400 |
400 |
350 |
|
Modulus. GPa |
6 |
6 |
5.8 |
|
Elongation at break, % |
30 |
23 |
28 |

| Product performance | Boraychem | American D company |
|
thickness, μm |
10 |
10 |
|
Tg, oC |
> 450 |
450 |
|
CTE, ppm/K |
8 |
14 |
|
Td (1wt%) |
476 |
539 |
|
|
|
|
|
Breaking strength, MPa |
283 |
171 |
|
modulus,GPa |
6.9 |
5.2 |
|
Elongation at break, % |
25 |
9 |
|
Light transmittance(380-780 nm), % |
88 |
85 |
|
Yellow index, YI |
2.6 |
4.9 |
Advantages: Low coefficient of thermal expansion, excellent strength, excellent toughness, higher solid content