Picture Frame Gaskets
Key Features
- Flat, four-sided picture frame gasket design
- Effective sealing against dust, moisture and contaminants
- Helps prevent fluid and gas leakage
- Available in square and rectangular configurations
- One-piece and joined gasket options
- Helps cushion surfaces and reduce vibration
- Custom sizes, thicknesses and materials
- Precision cut to drawings, CAD files or samples
Product Description
Our rectangular rubber gaskets, also known as picture frame gaskets, provide a reliable sealing solution for industrial machinery, equipment housings, access panels and flat mating surfaces. These flat rubber gaskets feature a continuous, four-sided frame design with an open centre, creating an effective perimeter seal between two components.
Manufactured from high-quality rubber sheeting and other specialist gasket materials, our square and rectangular gaskets help prevent the ingress of dust, dirt, moisture and other contaminants. They can also reduce vibration, cushion adjoining surfaces and help prevent fluid or gas leakage when correctly specified and compressed.
We supply bespoke rectangular rubber gaskets in a wide range of sizes, thicknesses and materials to suit specific industrial applications. Our precision cutting capabilities enable us to manufacture flat picture frame gaskets to customer drawings, CAD files or existing samples, ensuring an accurate fit around machinery openings, inspection covers, enclosures and equipment panels.
Depending on the application, rectangular gaskets can be produced as one-piece, seamless frames or as joined perimeter seals. One-piece gaskets are cut from a single sheet of material, eliminating joints and providing a consistent sealing surface. Joined options may be suitable for larger dimensions or specialist requirements, subject to material compatibility and sealing conditions.
Gasket Materials
Our rectangular picture frame gaskets can be manufactured from a variety of rubber and specialist sealing materials, selected according to the operating environment and performance requirements.
Material selection should consider operating temperature, pressure, chemical exposure, compression requirements and the condition of the mating surfaces.
One Piece & Joined Picture Frame Gaskets
We can supply rectangular rubber gaskets in one-piece or joined constructions, depending on the size, material and application.
One-Piece Picture Frame Gaskets
Precision cut from a single sheet of rubber or gasket material, one-piece frames provide a continuous sealing surface without joints. They are particularly suitable for machinery housings, access panels and applications requiring consistent compression around the gasket perimeter.
Joined Rectangular Gaskets
For larger frames or applications where cutting a one-piece gasket is impractical, joined perimeter seals may provide an alternative. Suitable joining methods depend on the material and operating conditions, with the joint design assessed against the required sealing performance.
Bespoke Rectangular Gasket Manufacturing
We manufacture bespoke rectangular rubber gaskets and picture frame seals for industrial machinery, equipment housings and replacement components. Using precision cutting and fabrication techniques, we can produce custom gaskets with specific outside dimensions, internal openings, material thicknesses and fixing holes.
Our manufacturing capabilities support both one-off replacement gaskets and repeat production quantities, with materials selected to suit the application and operating environment.
Whether you require a single replacement gasket or repeat production quantities, our team can help identify a suitable material and manufacturing method for your application.
Contact us with your drawing, dimensions or sample to discuss your rectangular rubber gasket requirements.
How to Measure a Rectangular Rubber Gasket
Accurate measurements are essential when ordering a replacement rectangular rubber gasket or specifying a bespoke picture frame gasket. To ensure a precise fit and reliable seal, we recommend measuring the gasket’s outside dimensions, internal opening, frame width and material thickness.
Key Measurements
• Outside Length (OL) – Measure the overall length of the gasket from one outer edge to the opposite edge.
• Outside Width (OW) – Measure the overall width of the gasket between its outer edges.
• Inside Length (IL) – Measure the length of the internal opening between the inner edges.
• Inside Width (IW) – Measure the width of the internal opening between the inner edges.
• Frame Width (FW) – Measure the width of the sealing material between the inner and outer edges.
• Material Thickness (T) – Measure the thickness of the flat rubber sheet used to manufacture the gasket.
• Fixing Holes – Where applicable, provide the hole diameter, quantity and centre-to-centre positions.
Additional Considerations
For rectangular gaskets with a uniform frame width, the inside dimensions can be calculated from the outside dimensions by subtracting twice the frame width.
Where possible, take measurements from the original equipment or mating surfaces rather than relying on a worn, stretched or compressed gasket.
For bespoke picture frame gaskets, we recommend supplying a technical drawing, CAD file or existing sample. This helps ensure the correct dimensions, material specification and fixing hole positions for your application.
Have your dimensions ready? Send us your measurements, technical drawing or existing gasket sample, and our team can help with your bespoke rectangular gasket requirements.
FAQs
A picture frame gasket is a flat, continuous sealing component with a square or rectangular outer shape and an open centre. It is commonly used between mating surfaces on industrial machinery, equipment housings, access panels and enclosures to prevent leaks and contamination.
Yes. We can manufacture bespoke rectangular rubber gaskets in a wide range of sizes, thicknesses and materials. Gaskets can be precision cut to your technical drawings, CAD files or existing samples.
The most suitable material depends on the operating environment. EPDM is commonly used for water and weather resistance, nitrile for oils and fuels, and silicone for applications requiring a wide operating temperature range. Our team can help identify a suitable material for your application.
Yes. Large rectangular gaskets can be manufactured as one-piece frames where material dimensions permit. Joined perimeter seals may also be available for larger or specialist applications, depending on the material and sealing requirements.
We recommend providing the outside length and width, internal opening dimensions, material thickness and any fixing hole positions. Details of the operating temperature, pressure and substances being sealed will also help us recommend a suitable gasket material.
Potential Applications
- Industrial machinery and equipment housings
- Electrical cabinets and control panels
- Machine access doors and inspection covers
- Hydraulic equipment and control units
- Pump and compressor housings
- HVAC equipment and ventilation systems
- Industrial enclosures and protective covers
- Flanged panels and flat mating surfaces
