About Red Seal

Company Overview

Our company was founded by Sam Stryffeler in 1946 as the Durolet Manufacturing Company and changed to Red Seal Electric Company in 1952. Many of our original products are still manufactured as part of our proprietary line.

Red Seal Electric Company has evolved into a full service-oriented job shop for machining non-metallic materials, providing electrical, mechanical and thermal insulating products to an international customer base. We have grown by responding to our clients needs and welcoming new challenges and opportunities.

Red Seal holds Certificate No. 02.168.2 ISO 9001:2015 Without Design for Contract Manufacturing and distribution of mineral, fiberglass, plastic, refractory, and ceramic insulation.

With over 50 years of experience as a distributor and fabricator of mineral, fiberglass, plastic, refractory and ceramic insulation materials, we have become one of the nation's most knowledgeable resources for OEM special equipment builders including tire, rubber and steel, automotive HVAC, and building material manufacturers. 

How We Work

We work closely with our customers to supply the right material or produce the right custom part for the job. We offer a huge selection of non-metallic materials and an extensive inventory. And, more importantly, we’re committed to our customers and to our work. That’s why we’ve been a leader in the field since 1946.

  • Huge Inventory of Non-Metallic Materials

  • Quick Turnaround from Quote to Delivery

  • An Undying Commitment to Our Customers

  • On-Time Delivery of High-Quality Custom Products

Trade Groups & Affiliations