Copper Exhaust Gasket

Copper Exhaust Gasket — Solid Copper Gasket with Embossed Sealing Area for Leak-Free Exhaust Manifold & Header Joints

Copper Exhaust Gasket — solid copper with an embossed sealing area for a tight, leakproof seal even on irregular flange surfaces.

Copper Exhaust Gasket is a solid copper gasket with a precision embossed sealing area, designed for exhaust manifold, header and turbo flange joints on automotive, heavy equipment and marine engines. Because it is made from solid copper, the gasket will not shrink, corrode or prematurely wear out — which prevents exhaust leaks and loose header bolts, and allows the gasket to be reused after inspection. The embossed sealing bead concentrates bolt load onto a narrow contact line, so the gasket seals reliably even where the mating surfaces are not perfectly flat or have been resurfaced.

What Is a Copper Exhaust Gasket?

A Copper Exhaust Gasket is a solid metal gasket stamped or die-cut from copper sheet, with an embossed sealing bead formed on one or both faces. It is used to seal the joint between an exhaust manifold and a cylinder head, between manifold sections, or between a turbocharger and the exhaust downpipe. Because exhaust-gas temperatures are high and thermal cycling is severe, a gasket must be able to hold a seal while the joint expands and contracts repeatedly — which is exactly what solid copper does well.

Unlike composite or graphite exhaust gaskets, a copper gasket does not contain a compressible filler that can blow out or degrade over time. Copper is soft enough to conform to small surface irregularities, yet strong enough to resist blow-out at exhaust pressures. It will not shrink, corrode or prematurely wear, so it does not loosen header bolts or develop leaks over the life of the engine. Because it is a single metal part with no binder, it can be inspected and, in many cases, re-used — a cost advantage for race teams, fleet operators and maintenance workshops.

Specification

Values are typical for standard production. Confirm the exact grade, thickness and embossed pattern against your manifold and turbo flange specification.

Key Advantages

• Leak-free sealing even on irregular or resurfaced exhaust manifold surfaces
• Solid copper will not shrink, corrode or prematurely wear, preventing exhaust leaks and loose header bolts
• Precision die-cut for accurate fit and easy installation
• Withstands exhaust-gas temperature and thermal cycling without losing mechanical properties
• Reusable after inspection where the embossed bead and surface are intact
• High working pressure capability — up to 42 MPa
• No compressible filler to blow out or degrade

Typical Applications

• Automotive exhaust manifold and header flange joints
• Turbocharger to exhaust downpipe joints
• Heavy equipment and marine engine exhaust systems
• Industrial machinery and agricultural machinery exhaust flanges
• Hose and cable protection in the automotive industry
• Wire harnessing and electrical joints where a copper washer is required
• General-purpose copper washers for industrial equipment

Why Buy Copper Exhaust Gaskets from Kaxite Sealing

We stamp and emboss the gaskets in-house

Ningbo Kaxite Sealing Materials Co., Ltd. operates its own stamping, embossing and die-cutting lines in Ningbo, China. We control copper sheet grade, sheet thickness, embossed bead geometry and finished gasket flatness — so the gasket you receive is consistent from batch to batch and matches your manifold or turbo flange drawing.

Quality control on every batch

• Incoming copper sheet verified for grade and thickness
• Embossed bead height and profile checked on each batch
• Gasket dimensions measured on 100% of production
• Surface finish inspected for scratches, burrs and oxidation
• Material certificate and dimensional report supplied with each shipment
• Third-party inspection (SGS, BV, TUV) arranged on request

OEM and custom gaskets

• Made to OEM drawing or to your own drawing
• Standard thickness 0.5 mm to 3.0 mm; custom thickness on request
• Single-layer and multi-layer copper gaskets available
• Surface coating and passivation on request

Terms that suit project procurement

• No minimum order quantity on standard sizes — sample and trial orders welcome
• Stock sizes ship in 7–15 days; custom tooling and die-cutting in 15–25 days
• Export packing with protective wrap and carton or pallet
• 24 hours × 7 days after-sales response

What to Send for an Accurate Quotation

Frequently Asked Questions