Using Poron to make a Custom Gasket
PORON is a fine pitch open cell urethane foam produced by Rogers Corporation. The uniform, microcellular structure allows PORON to be easily compressed for dust seals and cushions. Water sealing with PORON is possible in applications with proper compression and moderate water exposure. PORON urethane foam has excellent memory (compression set resistance) making it an excellent choice for sealing and cushioning electronics.
We have agreed a committed delivery for the raw material from our supplier of 3 business days for the following thicknesses:
Ultra soft and soft Poron in 3/16", 1/4", 3/8" and 1/2".
Soft in 1/4".
Medium in 1/16" and 1/8".
Medium hardness in 1/32".
Other thicknesses and hardness’s are available per request.
Poron is available with plain backing or with an adhesive. The standard adhesive is Acrylic with temperature range -40 degrees to 190 degrees F. The most commonly 3M specified adhesives are 467, 9485, 9490LE and 9415.
Some typical gaskets using Peron material.
The benefits of Poron
Typical gaskets made from Poron
When thinking about how to produce a gasket the main issues the customers engineer usually asks about are focused on understanding how the die cutting process works. To help with this concern I have outlined the die cutting process which we follow. I have also addressed some of the most common questions. At Alpha Die Cutting we use a steel rule die cutting manufacturing process which cuts uniform shapes out of various types of materials to create standard gaskets, custom gaskets, O Rings and other final products for a wide variety of industries. This is a low cost, accurate, high repeatable and high accuracy option for the manufacturing of flat non-metallic parts.
1. Design for Manufacturing
At Alpha Die Cutting we have over 30 years experience in die cut manufacturing. We work diligently with our customers with the goals of producing a quality gasket and keeping costs to a minimum. We have developed the expertise to understand the main themes that contribute to the cost of manufacturing a custom gasket. We now want to share these experiences with you. Here are the seven main areas where customers could focus their gasket spec on to ensure the lowest possible cost. We have also included a Tip for each element so that you can make the best choice to keep your costs as low as possible.
Collaboration at the RFQ stage of gasket manufacture can save significant money and time. Recently a new customer, Swope Design Solutions a mechanical engineering and product design company; SwopeDesignSolutions.com sent a RFQ asking us to manufacture some custom gaskets.
Their engineer, Stephanie Whalen linkedin.com/in/sawhalen/ had a good idea of the gasket need for the application but wanted to use our expertise and open to any suggestions we had for finding a better solution.
A common customer dilemma is when they cannot find a washer to fit their application because only standard parts are available. They ask us if we can manufacture a custom washer type gasket – the answer is YES. Many customers don’t think of talking to a gasket company when they need washers manufactured. In fact, washers are just small gaskets that can be cut using our die cutting capabilities. A washer is a thin plate, usually round with a hole that is used to distribute the load of a threaded fastener such as a screw or nut.
About the Author
With over 25 years of experience in the manufacturing industry, Martin Chell brings a wealth of knowledge to his client projects. He has worked with large companies including Qualcomm and completed projects in a variety of aerospace, biotech and other applications.
“The die cut samples look great.” ~ Aquapail
“Thanks so much for the great service.” ~ Robert, Hat Fitness
“The gaskets worked out just fine. Thanks for your help.” ~ Chong, Redpoint Engineering