
Image shown is representative and may differ from the actual product in size, proportions, and color shade
4.500 in
(114.30 mm)
10.000 in
(254.00 mm)
8
0.880 in
(22.35 mm)
7.880 in
(200.15 mm)
1/2"

PTFE PT60BK20 Full Face Gasket, Size: 300#-4"-FF-1/2"
Material: PTFE PT60BK20 Full Face Gasket
Size: 300#-4"-FF-1/2" Full Face Gasket
Part Number: PT60BK20-300#-4"-FF-1/2"
PT60BK20
PTFE (Teflon®)
60
Shore D
15% Graphite Filled
Color: Black
Detailed Description
PT60BK20-300#-4"-FF-1/2" is a Black, 60 Shore D, PTFE (Teflon®) Full Face Gasket. It is a 60 durometer PTFE (Teflon®). [PT60BK20 is manufactured with the following features & specifications: 15% Graphite Filled. PT60BK20-300#-4"-FF-1/2" is a size 4, 300#-FF ASME Full Face Gasket. Material: 60 Durometer PTFE PT60BK20 Full Face Gasket Size: 300#-4"-FF-1/2", 4 Pipe Size X 114.3mm ID X 254mm OD X 8 Bolt Qty X 22.350mm Bolt Dia. X 200.150mm Bolt Circle X 1/2" Thickness

| Technical Specification | Value |
|---|---|
| Compound Number | PT60BK20 |
| Material | PTFE (Teflon®) |
| Color | Black |
| Durometer | 60 Shore D Hardness |
| High Temperature | 290 °C / 554 °F |
| Low Temperature | null °C / 32 °F |
| Geometry Specifications | |
| Type | Full Face Gasket |
| Size | 300#-4"-FF-1/2" |
| Pipe Size | 4 |
| ID | 114.30 mm / 4.500 in |
| OD | 254.00 mm / 10.000 in |
| Bolt Qty | 8 |
| Bolt Dia. | 22.35 mm / 0.880 in |
| Bolt Circle | 200.15 mm / 7.880 in |
| Thickness | 1/2" |
| Other Specifications | |
15% Graphite Filled | |

Canyon’s PT60BK20 is a 60 Shore D black PTFE compound filled with 15% graphite, engineered for enhanced wear resistance and superior dynamic sealing performance. By combining the chemical inertness of PTFE with the lubricity and strength of graphite, this material delivers reduced friction, lower wear rates, and improved dimensional stability under load. With a service temperature range of -268°C to 290°C (-450°F to 554°F), PT60BK20 maintains exceptional thermal and chemical resistance in extreme operating environments. Its low gas permeability and self-lubricating characteristics make it well suited for demanding static and dynamic sealing conditions.
PT60BK20 is commonly used in high-pressure backup rings, spring-energized seals, and precision components for semiconductor, aerospace, and chemical processing applications. It performs reliably in contact with aggressive media such as MEK, DMF, acetone, and other harsh solvents. This 15% graphite-filled PTFE formulation provides long service life, stable performance, and low friction for critical sealing and bearing applications. Canyon Components also offers equivalent filled PTFE materials tailored for specific wear, load, and chemical resistance requirements.
Common relevant keywords:
PTFE, Graphite Filled PTFE, 15% Graphite PTFE, 60 Shore D PTFE, Low Friction Materials, Wear Resistant PTFE, Chemical Resistant Plastics, High Temperature PTFE, Cryogenic PTFE, Backup Rings, Spring Energized Seals, Semiconductor Sealing Materials, Aerospace Plastics, Chemical Processing Components, Self-Lubricating Materials, Industrial PTFE Parts, Datasheet, TDS, Test Report, MTR, MSDS, SDS


