Phenolic resin for electronic materials
We can provide you not only general phenolic resins but various type of special phenolic resins for electronic materials . You can apply them to electronic materials as epoxy raw material or curing agents, for general and special properties.
1.General phenolic resins [PS series].
These are high purity products refined to apply for electronic materials.
Purity of products
| Item | unit | standards |
|---|---|---|
| Free Phenol | % | ≦0.1 |
| Electric Conductivity | μS/cm | ≦6.0 |
| PH | - | 4.7-5.3 |
| Na+ | ppm | ≦1 |
| Cl- | ppm | ≦1 |
| Water Content | % | ≦0.3 |
Products and properties
| 4271 | 6200 | 4360 | 4357 | 4324 | 6362 | 4326 | |
|---|---|---|---|---|---|---|---|
| Softening point (℃) |
69-73 | 78-84 | 88-93 | 92-98 | 98-102 | 108-112 | 118-122 |
| Melt viscosity (Ps) |
0.4-0.6 | 13-22 | 19-23 | 66-88 | 90-150 | 200< | 200< |
We have various types of special products but just introduce 2 well-known series.
BNC series
We succeed to increase to the highest content of Naphtol in Naphtol-cresol novolak phenolic resin.
It is expected not only hydrophobicity and high heat resistance, but better incombustibility.
Comparison with general novolak.
| Item | Result |
|---|---|
| T.g. | 30%up |
| Water absorption | 40%down |
| Curing shrinkage | 30%down |
| incombustibility | Up to V-0 |
Products and properties
| 70 | 80 | 90 | |
|---|---|---|---|
| Softening point (℃) |
68-72 | 77-83 | 85-95 |
| Melt viscosity (Ps) |
0.8-1.2 | 1.5-2.5 | 4-12 |
| Hydroxyl equivalent |
185-195 | 195-205 | 195-205 |
GPNX series
GPNX(Naphtol-phenol novolak phenolic resin) is improved of Xyloc, especially the feature of low water absorption and incombustibility. It is also expected better curing shrinkage.

Comparison with Xyloc
| Item | Result |
|---|---|
| Tg | 20%up |
| Water absorption | 20%down |
| Curing shrinkage | 30%down |
| incombustibility | Higher V-0 |
Products and properties
| 70 | 80 | 90 | |
|---|---|---|---|
| Softening point (℃) |
68-72 | 77-83 | 85-95 |
| Melt viscosity (Ps) |
0.8-1.2 | 1.5-2.5 | 4-12 |
| Hydroxyl equivalent |
185-195 | 195-205 | 195-205 |

