small size and complex design metal gaskets

Metal gaskets are sealing components used between two surfaces to prevent leakage of fluids or gases. Unlike traditional rubber or polymer gaskets, metal gaskets offer superior durability, high-temperature resistance, and pressure tolerance—making them ideal for critical applications.

When manufactured using photo etching, these gaskets can feature extremely small and intricate geometries, smooth edges, and ultra-thin profiles—perfect for miniaturized and high-tech systems.

Why Choose TMN for Small & Complex Metal Gaskets?

✔ Precision Etching Technology
✔ Custom Design Capabilities
✔ No Burrs, No Distortion
✔ Fast Turnaround & Scalable Production
✔ Wide Range of Materials & Thicknesses

With TMN, you benefit from a team that combines advanced production techniques with hands-on engineering experience. We partner with you to understand your specific sealing and space constraints, delivering gaskets that perform with precision under pressure.

Our Photo Etching Advantage

Photo chemical etching is the ideal method for producing small and complex gaskets because:

• Burr-Free Edges: No mechanical cutting means smooth, sealed edges ideal for tight seals.

• Stress-Free Manufacturing: No heat or force, so thin metals stay flat and distortion-free.

• Tight Tolerances: Maintain tolerances as tight as ±0.01 mm.

• Rapid Prototyping: Fast tooling turnaround and easy revisions.

• Intricate Patterns: Easily produce multi-layer, asymmetric, or micro-featured gasket designs.

Unlike stamping or laser cutting, photo etching allows us to manufacture fine-featured gaskets consistently—even in hard-to-machine alloys or extremely thin sheets.

Typical Materials Used

We etch gaskets in a variety of metals, depending on your sealing requirements:

• Stainless Steel (304, 316, 316L): Corrosion-resistant, ideal for harsh environments.

• Copper & Copper Alloys: Excellent conductivity and malleability.

• Nickel Alloys (e.g., Inconel): High-temperature and oxidation resistance.

• Aluminum: Lightweight with good corrosion resistance.

• Titanium: Lightweight, strong, and biocompatible for medical use.

• Brass & Phosphor Bronze: Great for electrical and fluidic applications.

Thickness range: 0.01 mm to 1.5 mm, with custom thicknesses available upon request.

Applications of Small Metal Gaskets

Our complex-design metal gaskets serve critical sealing functions in compact assemblies across many industries:

Aerospace & Defense

Used in engines, avionics, and hydraulic systems where size constraints and extreme operating conditions demand uncompromising gasket performance.

Automotive & E-Mobility

High-precision gaskets used in battery systems, fuel injectors, sensors, and fluid connectors.

Electronics & Telecommunications

RF shielding gaskets, EMI gaskets, and thermal interface seals for mobile, satellite, and network devices.

Medical Devices & Diagnostics

Biocompatible metal gaskets for surgical instruments, diagnostic machines, and implantable devices—where cleanliness and exact fit are crucial.

Industrial & Chemical

Chemical-resistant seals for pumps, valves, and containment systems.

Capabilities & Tolerances

• Minimum Feature Size: 0.1 mm

• Minimum Hole Diameter: Equal to material thickness

• Part Dimensions: As small as 2 mm up to 300 mm

• Tolerances: ±0.01 mm (depends on material and part geometry)

• Etching on One or Both Sides

• Optional Adhesive Backing or Layering

Whether your gasket has hundreds of micro-holes or an irregular asymmetrical perimeter, we produce parts with high repeatability and zero distortion.

Our Process: From Design to Delivery

1. Design Review & Consultation

We work closely with your engineering team to understand gasket function, fit, and material constraints.

2. CAD Preparation & Tooling

We translate your drawing into a high-resolution film for photo etching—tooling is inexpensive and easy to modify.

3. Metal Preparation & Coating

Raw metal sheets are cleaned and coated with photoresist to prepare for pattern exposure.

4. Exposure & Etching

Your design is exposed via UV light, developed, and chemically etched to create precise cutouts and features.

5. Cleaning & Finishing

Post-etch cleaning ensures all parts are debris-free. Optional polishing, passivation, or lamination can be added.

6. Inspection & Delivery

Every part is measured, visually inspected under magnification, and packaged to meet cleanroom or industrial standards.

Optional Services

• Forming / Bending (Post-Etch)

• Adhesive Layering or Lamination

• Surface Finishing & Polishing

• Heat Treatment

• Laser Part Marking

• Cleanroom Packaging

Quality You Can Count On

Our commitment to quality and precision manufacturing is what sets TMN apart. We maintain rigorous internal QC protocols aligned with ISO standards, ensuring every gasket we ship meets your exact specifications.

Request a Quote or Sample

Looking for custom small metal gaskets with fine detail and reliable sealing performance? Let TMN be your trusted partner in precision.

Let’s Build Precision Together

With TMN Metal Parts Fabrication, you don’t just get a gasket—you get a precision-engineered component that enhances the performance, reliability, and lifespan of your product.