At Advanced Technical Products, we specialize in custom-formulated Water-Based Stop-Off Coatings that deliver outstanding performance during case hardening and other high-temperature metal treatments. These advanced coatings—marketed under our trusted Metseal brand—provide selective protection during thermal processing, enabling manufacturers to achieve precision hardening while minimizing extra labor and environmental impact.
What Are Water-Based Stop-Off Coatings?
Our water-based stop-off coatings are engineered to act as a protective mask during processes such as gas nitriding, plasma nitriding, carburizing, and brazing. By controlling gas diffusion at targeted areas of the metal surface, these coatings effectively prevent hardening in designated zones. This capability replaces expensive legacy methods such as copper plating while simplifying cleanup and post-process handling.
We proudly offer several product variants tailored to specific heat treatment applications:
- Metseal-100: For gas nitriding
- Metseal-105: For ion/plasma nitriding
- Metseal-300: For gas carburizing
- ATP-500B: For brazing
Each formula is non-flammable, solvent-free, and environmentally friendly, aligning with modern industrial safety and sustainability standards.
Advantages of ATP’s Water-Based Solutions
Our stop-off coatings provide the following operational benefits:
- Eco-conscious formulation: Non-toxic, VOC-free, and water-based
- Cost-effective alternative to copper plating and masking
- Minimized disposal concerns: No hazardous byproducts
- Simple application methods: Dip, spray, flow-coat, or brush
- Custom formulations available to suit your heat-treating requirements
Whether you’re working with ferrous components in automotive, aerospace, or heavy manufacturing, our stop-off coatings allow you to streamline operations while protecting quality.
Use Case: Eliminating Copper Plating in Carburizing
One of our clients in the gear manufacturing sector transitioned from copper plating to our Metseal-300 coating for selective protection during gas carburizing. Not only did they eliminate the need for an additional plating and stripping line, but they also improved process speed and consistency—resulting in a measurable boost in productivity and environmental compliance.
Industries and Applications
Our coatings are currently used in a wide array of industries and applications, including:
- Aerospace component hardening
- Automotive gear and shaft treatment
- Industrial tools and dies
- Precision metal part manufacturing
And because our Water-Based Stop-Off Coatings are custom-formulated, we can tailor solutions for emerging processes and niche industrial challenges.
Let’s Customize Your Solution
At Advanced Technical Products, we don’t believe in one-size-fits-all. Every application is different—and that’s why we work closely with your technical and production teams to develop coatings that meet your exact heat treatment goals.
Need improved adhesion? Faster drying time? Compatibility with exotic alloys? We can help.
Ready to improve precision and reduce waste in your thermal treatment processes? Explore our full line of Water-Based Stop-Off Coatings or contact us directly to start a conversation about your project requirements.