X, XP, XPC Paper Phenolic
What is X PAPER PHENOLIC?
X Paper Phenolic is a paper-based high pressure laminate. It has the highest mechanical strength of the paper-based phenolic group, however, it is not equal to fabric-based grades in impact strength. It is primarily intended for mechanical application where electrical properties are of secondary importance. Discretion should be used in applications where high-humidity and moisture are encountered.
X Paper Phenolic fabricates well but punching of this product should be limited to thicknesses of .046″ and thinner.
Related grades in this group are XP and XPC which have similar properties but are designed primarily for punching operations. XP is primarily for hot punching, and when heated between 120 and 140 degrees C., sheets up to .062″ and thinner may be punched cold. XPC is more flexible and has a higher cold flow but is lower in flexural strength than XP. XP is primarily for cold punching and shearing with sheets up to .125″ punchable at room temperature.
Properties, Applications and Availabilities for the X, XP, XPC Paper Phenolic Sheet and Rod
| Properties | Applications | Availabilities |
|---|---|---|
| Light weight | Low voltage insulating washers | Rod: .062″ to 6.000″ |
| Low cost | Coil form insulation bushings | Sheet: .015″ to 2.000″ |
| Dimensional stability | Bushings | Tubing: from .187″ I.D. to 6.000″ O.D. |
| Ease of machining | Transformer spacers | Standard Color: Brown and black |
| Thrust washers | ||
| Backing disks | ||
| Terminal blocks | ||
| Cams |
Specifications
|
NEMA GRADE |
FED. SPEC. L-L-31 |
MIL |
MIL SPEC TYPE |
JAN-P-13 TYPE LTS |
ARMY SPEC. |
ASTM D-709 TYPE |
NAVY SPEC. |
|---|---|---|---|---|---|---|---|
| N/A | (Formerly HHP-256) | MIL-I-24768/12 | PMB | M-1 | I | I | PMB |
| GRADE: X | |||||||
| TYPE I | |||||||
| X | GRADE: X | MIL-I-24768/N/A | 1-cross laminated | M-2 | I | I | PBM-1 |
| TYPE I | MIL-P6885 | 11-parallel laminated | |||||
| (Formerly AN-P-687) | |||||||
| P | GRADE: P | MIL-I-24768/19 | PMB-P | E-1 | N/A | I-1 | PBP |
| TYPE I | |||||||
| XPC | GRADE: PC | MIL-I-24768/20 | PBM-PC | N/A | N/A | I | |
| TYPE I | |||||||