Custom Gaskets- Waterjet Cut, Die-Cut

New England Die Cutting(NEDC) manufactures gaskets of all sorts, sizes, colors, and materials. Gaskets are a generic term for something that seals out medias such as fluids, gases, dust, and other things that may be harmful to the application. With that said, there are many different types of gaskets that are held under that umbrella. When NEDC got started in 1982, gaskets were its first product line. For that reason, NEDC is very experienced in the gasket business, equipping itself with countless machines that cut materials into unique custom shapes.

Customability of Gaskets

At NEDC our philosophy is that we are here to do what the customer wants. With gaskets, the ability to customize gaskets seems to never end. While not everything can be customized with another customization, the point is many different options are available.


With gaskets, color customization is not uncommon. We have seen green gaskets, yellow gaskets, blue gaskets, and everything in between. Oftentimes we have customers who want a gasket a different color to see if it has been replaced already or if its a different revision. Some gasket materials are able to dyed different colors, others require minimum runs, and others cannot be.

Thickness/Thickness Tolerances

Thicknesses with gaskets range from .005” to 2.00”. In addition, thickness tolerances are constantly being tightened by our customers. We have seen gasket thickness tolerance as low as +/- .001” be achieved on select thicknesses of material.


Softness and hardness come down to something called durometer. Gasketing materials can be customized to meet certain durometer requirements. Different compression requirements are required in each application so being able to customize this feature is important. This may also include sponge/foam gasketing materials.


Specifications allow customers to get what they want on a repeatable basis. To list some specifications available are: AMS-R-25988, AMS-3323, A-A-59588, ZZR765, MIL-R-6855, AMS-3260, MIL-R-900, the list goes on and on. In the aerospace, military manufacturing space, military specifications are endless. However, with gaskets everyday there seems like there is a new specification that comes out that requires of the material.

Solid Rubber Gaskets

Solid Rubber Gaskets are generally referring to rubber gaskets made out of the common elastomers such as silicone, fluorosilicone, neoprene, EPDM, nitrile, fluoroelastomer, and others. They can often be offered with a fiberglass insert for pressurized applications. In addition, electrically conductive gasket options can be provided.

silicone gaskets

These gaskets are die-cut, waterjet-cut, and laser-cut. These gaskets are available in sizes ranging from .050’’ to 14 feet in length.  Commonly known solid rubber products include materials from OEMs such as Rogers, and Saint Gobain. In our current industry, silicone rubber products are extraordinary popular. These include CHR 9030, 9040, 9050, and 9060.

VHB Tape Gaskets

VHB Gaskets refer to VHB Tape materials provided by 3M cut into shapes that offer gasketing solutions. VHB Tapes are used in place of permanent fasteners such as rivets or spot welds. The time saved in assembly and processing can be dramatically cut down with VHB. The reason these acrylic foam tapes are used is because they offer great permanent bonding strength. In addition, they can seal out many mediums such as dust or water when properly applied. These tapes are commonly used on computer like tablets. These acrylic foam tapes include ultra thin and thick options to accommodate different applications. These tapes oftentimes are used in applications that require permanent bonds. The three VHB tape families include 5952, 4941, and RP tapes.

Sponge/Foam Gaskets

Sponge/foam gaskets include cellular products that allow for less compression force than is normally required to seal out different medias. These materials have been chemically or otherwise expanded but are often made out of similar base materials that solid rubber gaskets are made out of.  Some examples of foam/sponge gaskets include silicone sponge, fluorosilicone sponge, neoprene sponge, PORON®(urethane foam), sponge blends, and other cellular selections. Sponge and foam gaskets are highly customizable. Some examples of that include thermally conductive options, electrically conductive options, and ultra-soft or firm options.

Commonly known cellular foam/sponge products include:

Silicone Sponge Products such as NORSEAL® R10450, R10460, R10470, R10480, and R10490 by Saint Gobain Performance Plastics

-PORON® Urethane Foams by Rogers Corporation. PORON® has a huge variety of thicknesses, densities, and firmnesses available for purchase.

Silicone Foam Products such as BISCO® HT-800, HT-820, HT-840, and HT-870 by Rogers Corporation

Plastic Gaskets

Oftentimes people use materials that are plastic for gaskets. Some materials used include PTFE(Teflon), Nylon, UHMW and more. These materials are cut out of flat sheet materials by NEDC.

NEDC is a supplier of gaskets to a wide variety of customers. NEDC does this through die-cutting, waterjet cutting, or laser cutting. We normally utilize electronic files such as DXF, or STP. Many times these gaskets can be provided with adhesive backing for ease in assembly. Most of these gaskets are flat in nature. 

If you have an application that you believe could utilize a custom manufactured gasket, please contact

BISCO® & PORON® are registered Trademarks of Rogers Corporation.

NORSEAL® is a registered Trademark of Saint Gobain Performance Plastics.