Flight-Ready: Meeting Stringent Quality Standards for Aerospace Gasketing and Seals

Aerospace components operate in environments where there’s little room for error. Changes in temperature, pressure, vibration and exposure to fuels or other fluids can place significant stress on even relatively small components within an aircraft.

That makes aerospace gasketing and seals much more than a matter of closing gaps between surfaces. The right gasket or seal helps protect critical systems, maintain environmental separation and support reliable performance throughout demanding operating conditions.

For aerospace manufacturers, achieving that level of performance starts with the right materials, precise manufacturing processes and a quality system capable of supporting stringent industry requirements.

Why Aerospace Gaskets and Seals Require Exceptional Precision

Gaskets and seals perform several functions throughout aerospace assemblies. Depending on the application, they may help prevent fluid or air leakage, protect sensitive components from environmental exposure, isolate vibration or maintain separation between adjoining surfaces.

The challenge is that aerospace environments can change dramatically throughout operation. A component may experience temperature extremes, pressure fluctuations, vibration and repeated mechanical stress. Materials may also encounter fuels, oils, hydraulic fluids, moisture and other environmental contaminants. A seal that performs under ordinary conditions may not necessarily maintain its properties under these stresses.

For manufacturers, this means gasket and seal design must consider more than dimensions alone. Material properties, compression behavior, environmental resistance and manufacturing tolerances can all influence long-term performance.

Material Selection Matters

Selecting an aerospace gasketing material requires balancing the application’s requirements with the material’s characteristics.

Common materials used for aerospace seals and gaskets include:

• Silicone: Offers flexibility and performance across a broad temperature range.
• Rubber and elastomers: Can provide sealing, cushioning and resistance to environmental exposure depending on the formulation.
• Foams and sponge materials: Useful for lightweight sealing, cushioning and vibration dampening.
• Plastics and films: Can provide lightweight barriers, insulation and protection.
• Adhesive-backed materials: Can simplify installation and help secure components within assemblies.

There’s rarely a universal material solution. Engineers must consider operating temperatures, chemical exposure, pressure, compression requirements, weight and the surrounding assembly before selecting a material. Working with a converter that has access to a broad range of materials can help manufacturers evaluate alternatives early in the design process rather than discovering material limitations after production begins.

Precision Converting Supports Reliable Performance

Even the right material can fail to perform as expected if the finished component doesn’t meet the application’s dimensional requirements. Precision converting processes allow manufacturers to transform sheets, rolls and other raw materials into components with controlled geometries and tolerances.

Depending on the design, aerospace gasketing and sealing components may be manufactured using processes such as precision die cutting, CNC cutting and laser inspection. These capabilities are especially valuable when an application requires complex shapes, openings, thin sections or repeatable dimensions across production volumes.

Precision manufacturing also helps reduce variation from one component to the next. For aerospace OEMs and suppliers, that consistency can be critical when components must integrate reliably into larger assemblies.

Meeting Aerospace Quality and Traceability Requirements

Manufacturers also need confidence that materials, processes and finished components are consistently controlled and documented. This makes traceability especially important. Quality systems help manufacturers maintain records related to materials, production and inspection while establishing repeatable processes for managing changes and addressing potential quality issues.

AS9100 certification provides an internationally recognized quality management framework specifically for the aviation, space and defense industries. Working with an AS9100-certified manufacturing partner can help aerospace OEMs meet stringent quality expectations while reducing risk throughout the supply chain.

Rapid Prototyping Helps Reduce Risk Earlier

Identifying potential design or material issues before full production can help reduce costly changes later. Rapid prototyping allows engineers to evaluate custom gaskets and seals using components produced to the same specifications as the intended final product.

Using digital converting and flatbed technology, prototypes can be produced without investing in expensive production tooling. This allows engineering teams to test factors such as material performance, fit, thickness, tolerances and component geometry before moving into larger production runs.

For aerospace applications with stringent performance requirements, this early validation can help teams refine designs, confirm material choices and identify potential manufacturing challenges sooner. Once a design is validated, manufacturers can move toward production with greater confidence that the finished component will meet the requirements of the application.

Supporting Flight-Ready Aerospace Manufacturing

Aerospace manufacturers need partners that understand the importance of precision, material performance, documentation and consistency.

Cohesive Components brings more than 80 years of material converting experience to advanced manufacturing applications, with capabilities including precision die cutting, CNC cutting and custom material converting. As an AS9100-certified manufacturer and 3M Preferred Converter, Cohesive Components also provides access to aerospace-grade materials and engineering expertise for complex sealing, gasketing, shielding and thermal management applications.

From initial material evaluation and prototyping through production, our team works with aerospace manufacturers to develop components designed for demanding environments and stringent quality requirements.

Learn more about Cohesive Components’ aerospace manufacturing capabilities or request a quote to discuss your next aerospace application.