MOLYKOTE D-10-GBL
Harmonization Code : 3909.20.00.90 | Amino-resins, phenolic resins and polyurethanes, in primary forms : Melamine resins : Other
Main features
- 15 to 20 um Dry Film
- -40 to 340 deg C Service Range
- 5,500 N Falex Load
Product Description
MOLYKOTE® D-10-GBL Anti-Friction Coating is a gray-black, heat-curing graphite dry-film lubricant for metal-to-metal friction contacts exposed to motor oils, grease, gasoline, diesel, or solvents. The highly viscous coating is formulated for screen printing and may also be sprayed or brushed after viscosity adjustment with gamma-butyrolactone. Recommended processing uses a 15–20 µm dry film, a 10-minute solvent flash-off at 80°C, and a typical 20-minute cure at 200°C object temperature. The cured film has a documented -40°C to 340°C service range and condition-specific Falex and SRV performance data. Applications include engine pistons, compressors, piston pumps, and pneumatic or hydraulic systems.
Key features
- Graphite dry-film technology: Solid-lubricant coating with an organic binder and solvent carrier for controlled metal-to-metal friction interfaces.
- Screen-print application: Typical dynamic viscosity of 35,000 mPa·s at 23°C supports screen printing; spraying and brushing are also documented after suitable dilution.
- Defined film and cure: Recommended 15–20 µm dry-film thickness with a 10-minute flash-off at 80°C and typical 20-minute cure at 200°C object temperature.
- Fluid-exposure resistance: Documented resistance to oil, grease, gasoline, diesel, and solvents for coated metal contacts.
- Condition-specific load and wear data: ASTM D2625 Falex load of 5,500 N on manganese-phosphated material and SRV endurance exceeding 12 hours under the stated test conditions.
Applications / Suitable for
- Gasoline and diesel engine pistons
- Compressors and piston pumps
- Pneumatic and hydraulic systems
- Metal friction contacts exposed to motor oils, fuels, grease, or solvents
TDS, SDS & Technical Documents
Technical Specifications
No specifications available.
Additional Information
MOLYKOTE® D-10-GBL Anti-Friction Coating
A highly viscous, solvent-borne anti-friction coating for prepared metal-to-metal contacts exposed to lubricants, fuels, or solvents. The graphite and organic-binder system supports screen printing of a controlled thin film, followed by solvent flash-off and heat cure for piston, pump, compressor, pneumatic, and hydraulic applications.
MOLYKOTE® D-10-GBL is supplied as a gray-black, highly viscous liquid coating that forms a heat-cured graphite dry film.
As-supplied coating properties
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Color | Gray-black | — | As supplied |
| Physical form | Viscous liquid | — | Solvent-borne coating |
| Dynamic viscosity | 35,000 | mPa·s | ASTM D1084 Method B at 23°C (73°F) |
| Density | 1.30 | g/mL | ASTM D1475 at 23°C (73°F) |
| Flash point | 77 (171) | °C (°F) | ASTM D56 |
Typical values are not specification limits. Flash point and uncured-product properties must not be interpreted as cured-film operating limits.
Prepare, apply, flash off, and heat cure the coating
A controlled surface and cure process is central to coating performance. Clean the substrate, select the pretreatment and application method, maintain the target dry-film thickness, and verify the actual cure on representative production parts.
Application sequence and process controls
Store the original unopened container at or below 23°C (73°F) in a cool, dark location and avoid direct sunlight. Usable life is 12 months from production under these conditions. Review the current safety data and container label before handling, dilution, application, flash-off, or cure.
Cured-film performance and operating conditions
The graphite coating is documented for fluid-exposed metal friction contacts and provides condition-specific load, endurance, and friction data. Use these results as evaluation evidence under the stated methods rather than as universal component-load or service-life limits.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Service-temperature range, cured dry film | -40 to 340 (-40 to 644) | °C (°F) | Supplier service guidance for the cured coating |
| Falex load-carrying capacity | 5,500 | N | ASTM D2625 Procedure B; manganese-phosphated surface |
| SRV endurance life | >12 | h | DIN 51834; cylinder/disc, 50 N (150 MPa), 120 mm/s, 50°C, 40% RH, three drops engine oil; sandblasted specimen |
| SRV coefficient of friction | 0.12 | µ | Same DIN 51834 test conditions |
| Theoretical coverage at 20 µm | Approx. 15 | m²/kg | Excludes application-process losses |
Typical laboratory results are not guaranteed specifications. The service range applies to the cured dry film; bench-test endpoints remain specific to the identified surface preparation, geometry, load, speed, temperature, humidity, lubricant exposure, and duration.
Piston and fluid-exposed friction applications
The coating is used where a thin, cured graphite film can be integrated into the component manufacturing process. Confirm substrate pretreatment, film thickness, cure, dimensional tolerance, operating fluid, contact pressure, speed, and duty cycle on the actual assembly.
Evaluate MOLYKOTE® D-10-GBL for your coated friction interface
Krayden can help review substrate and pretreatment, screen-print or spray process, target film thickness, flash-off and cure capability, dimensional tolerance, operating fluid, load, speed, and validation requirements. Contact us to discuss product fit, sample needs, or a production-representative coating evaluation.
