Aviation, Space and Defense Applications

Aviation, Space and Defense organizations have been a large part of our business over the years and we remain committed to excelling in every aspect for our customers.

Commercial Applications

Using compression and transfer molding, we create custom rubber products manufactured to your exact specifications. Let us help solve your most difficult delivery and quality issues.

Custom Compounds

We have over 300 standard and active compounds. If we don’t have one to meet your requirements, we can custom develop one.

The Porter Seal Company, a division of 4M Company, Inc., is an AS9100 / ISO9001 certified supplier, providing standard products for the aviation, space, defense and commercial industries since 1972.

Contact the Porter Seal Company for all your sealing needs to ensure high quality and on-time delivery.

Tailored Stocking Plans

Same Day Delivery

Competitive Pricing

Certified Quality Assurance

Highest Standards

You can depend on our expertise and the experience we have gained from serving the industry for over a quarter of a century. AS9100 and ISO 9001 approved.

Custom Molding

Tight tolerances and custom compounding are our specialties. We can handle the small run of just a few parts as well as all of your highest volume needs.

Responsive Service

We fully understand the pressure and commitment it takes to bring new designs and products to the market. We do what is needed in order to make you successful.