Die Cut Gaskets (Flat/CNC Knife Cut)

Key Features

High Volume Production
Precision Cutting Process
Versatile Material Usage
Excellent Sealants
Low Tolerance
Wide Industry Application
Customizable Fabrication Methods

Welcome to Exactseal, your trusted manufacturer of high-quality Die Cut Gaskets, also known as Flat/CNC Knife Cut or Flange gaskets. At Exactseal, we specialize in the production of these mechanical seals, which are created in high volume through a precise die-cutting process. This process employs sharp, slender blades, known as dies, to carve out different shapes from various materials. Our gaskets are ring-shaped and are predominantly made from materials like rubber, which can be cut before assembly.

The die-cutting process at Exactseal involves a steel rule die, a steel strip bent to the profile of the part being cut. This die is embedded into a plywood or phenolic board that holds it in shape. The exposed edge of the steel knife is sharpened so it can cut through the material with precision.

Our Die Cut Gaskets serve as excellent sealants and are preferred for their precision and low tolerance. They find applications across various industries, including LED gaskets, NEMA and UL 50 enclosure gaskets, battery pads, radome gaskets, environmental gaskets, and EMI gaskets.

In addition to die cutting, we at Exactseal also offer flash cutting, waterjet cutting, and custom molding. The best gasket fabrication method varies depending on tolerances, quantities, and the materials being cut.

At Exactseal, we are committed to delivering the highest quality products to our customers. Our Flange Gaskets are a testament to our dedication to quality, precision, and customer satisfaction. Trust Exactseal for all your gasket needs.


ApplicationIndustrial, Automotive, Aerospace, Medical
Product NameFlat Gasket
Hardness (Shore A)70 (This can vary based on material)
MaterialSilicone, EPDM, Nitrile (Buna-N), FKM (Viton), Neoprene, TPE, TPV (Santoprene), HNBR, SBR, PTFE (Teflon), FFKM (Kalrez), Natural Rubber
ColourBlack, White, Red, etc. (Can vary based on material)


Sealing connections for industrial pipelines
Creating detachable connections for housings
Preventing media escape in manufacturing
Compensating for surface unevenness
Ensuring tight seals in engines
Maintaining integrity in machinery joints

Technical Information

MaterialSilicone, Fluorosilicone, EPDM, Butyl (Buna-N), Neoprene, SBR, FKM/Viton, PTFE
Hardness (Shore A)70 (This can vary based on material)
Temperature ResistanceVaries based on material
Pressure ResistanceVaries based on material
Chemical ResistanceMust be resistant to the media being sealed
CompressibilityMust be deformable to adapt to the unevenness of the sealing surface
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