Anti Nitriding , Carburizing Stop Off
Anti Nitriding , Carburizing Stop-off
Anti Nitriding , Carburizing Stop-off
AVION GREEN-LABEL
AVION Water-base Carburizing Stop-Off Coating GREEN-LABEL product container
AVION GREEN-LABEL Stop-Off Coating is designed to protect selected areas of steel components from carburization during vacuum carburizing and gas carburizing processes. The coating forms a protective barrier on areas where carbon penetration is not desired, allowing manufacturers to control which surfaces receive the carburized case.
Key Features
- Designed for vacuum carburizing
- Suitable for gas carburizing
- Water-based formulation
- Effective at temperatures up to 1,900°F / approximately 1,038°C
- Supports carburizing depths up to 0.125 in / approximately 3.18 mm, depending on coating thickness
- Application by brushing/painting, dipping, or airless spraying
- Post-process cleanup using soap and water
- Application tools can be cleaned with soap and water
- Ecologically safe according to AVION product literature
Application & Cleaning
Application: Painting, dipping, or airless spraying according to production requirements.
The required coating thickness should be selected according to the required carburizing depth and process conditions.
After carburizing: Wash treated parts with soap and water to remove coating residue. Application equipment and tools can be cleaned in the same manner.
Available Packaging
| Packaging | Volume | Approx. Weight |
|---|---|---|
| Plastic Bucket | 3.8 L | 11 lb |
| Barrel | 209 L | 571 lb |
Packagin Water-Based Nitriding Stop-Off Coating
AVION BLUE-LABEL Stop-Off Coating is specifically designed to protect selected areas of metal components from nitriding. One or more coating applications can be used depending on the protection requirements of the component and process.
Key Features
- Specifically developed for nitriding protection
- Water-based formulation
- Allows selective masking of areas where nitriding is not required
- One or multiple coating applications can be used depending on requirements
- Post-process residue can be removed mechanically
- Application tools can be cleaned using soap and warm water
- Ecologically safe according to AVION product literature
Important Process Requirement
Do not heat above 400°F / approximately 204°C without a protective gas atmosphere.
This operating requirement should be considered when establishing the nitriding process cycle.
Removal After Nitriding
Coating residue may be removed using a cloth or stiff brush. Application tools can be cleaned using soap and warm water.
Selective Heat Treatment Protection
For heat-treatment operations, the objective is not always to harden or chemically modify the entire surface of a component. Certain areas may need to retain their original surface characteristics.
Selective Carburizing
Use GREEN-LABEL on areas where carbon penetration is not desired during vacuum or gas carburizing.
Selective Nitriding
Use BLUE-LABEL to protect selected areas from nitriding according to the process requirements.
Controlled Surface Treatment
Define which areas should be exposed to thermochemical treatment and which areas should remain protected.
Typical industry positioning may include heat treatment shops, automotive components, tool and die manufacturing, gear manufacturing, aerospace components, industrial machinery, and precision metal components. These examples are positioning suggestions and are not explicitly listed in the supplied AVION brochure.
GREEN-LABEL vs BLUE-LABEL
Frequently Asked Questions
| Feature | GREEN-LABEL | BLUE-LABEL |
|---|---|---|
| Primary Process | Carburizing | Nitriding |
| Purpose | Prevent carbon penetration | Prevent nitriding |
| Base | Water-based | Water-based |
| Vacuum Process | Vacuum carburizing specified | Not stated in brochure |
| Gas Process | Gas carburizing specified | Protective atmosphere requirement specified |
| Temperature Stated | Up to 1,900°F / 1,038°C | Do not heat above 400°F / 204°C without protective gas |
| Application | Painting, dipping, airless spraying | One or multiple applications |
| Removal | Soap and water | Cloth or stiff brush |
| Tool Cleaning | Soap and water | Soap and warm water |
Frequently Asked Questions
What is a carburizing stop-off coating?
A carburizing stop-off coating is a protective material applied to selected areas of a component to prevent carbon diffusion during carburizing. AVION GREEN-LABEL is a water-based stop-off coating designed for vacuum and gas carburizing.
Can AVION GREEN-LABEL be used for vacuum carburizing?
Yes. AVION's product literature specifies GREEN-LABEL for both vacuum and gas carburizing applications.
How is AVION GREEN-LABEL applied?
The coating can be applied by painting, dipping, or airless spraying.
What is the maximum operating temperature of GREEN-LABEL?
AVION specifies use at temperatures up to 1,900°F, approximately 1,038°C.
Which AVION coating is used for nitriding?
AVION BLUE-LABEL is the water-based stop-off coating intended for selective protection against nitriding.
What should be considered when heating BLUE-LABEL?
BLUE-LABEL should not be heated above 400°F / approximately 204°C without a protective gas atmosphere.
How is GREEN-LABEL removed after carburizing?
Treated parts can be washed with soap and water to remove coating residue. Application tools can be cleaned in the same manner.
How is BLUE-LABEL removed after nitriding?
Coating resssidue may be removed with a cloth or stiff brush. Application tools can be cleaned using soap and warm water.
Product Summary
AVION Stop-Off Coatings provide selective protection during carburizing and nitriding heat treatment. GREEN-LABEL is designed for vacuum and gas carburizing, with use at temperatures up to 1,900°F (1,038°C). BLUE-LABEL is intended for selective protection during nitriding and has a stated 400°F (204°C) heating limitation without a protective gas atmosphere.