SPI Wire, Cable and Related Components
About SPI – Specialty Products & Insulation
Founded in 1982 and headquartered in Charlotte, North Carolina, SPI (Specialty Products & Insulation) has grown into a nationally recognized distributor and fabricator of insulation and specialty products. With decades of experience and a catalog spanning more than 35,000 SKUs, SPI serves an extraordinarily broad range of markets — from commercial construction to industrial facilities, marine applications, and original equipment manufacturers (OEMs) across multiple industries.
At its core, SPI's expertise lies in thermal, acoustic, fire protection, and refractory insulation systems. But what truly sets SPI apart is its advanced in-house fabrication capability. Using CNC precision cutting, water jet technology, routing equipment, and custom steel rule dies, SPI engineers and manufactures components that must meet strict dimensional tolerances — parts that drop directly into complex assemblies on the first try. This precision manufacturing heritage is what makes SPI a credible supplier of fabricated components across the transportation and automotive sectors.
SPI's OEM Fabrication & Automotive Solutions
SPI's fabrication division serves a wide array of transportation industries, including automotive, trucking, buses, off-road vehicles, rail, marine, and aircraft. For automotive OEM applications in particular, SPI produces custom-cut insulation components, gaskets and seals, and other precision-fabricated parts designed to meet the exacting standards of vehicle manufacturers and suppliers. Their in-house die-making capability provides flexibility to adapt to engineering changes throughout a production program — a critical advantage in automotive manufacturing where specifications evolve frequently.
For applications requiring engineered engine gasket sets and related sealing components, SPI's CNC fabrication processes — including knife cutting, routing, and water jet operations — allow for intricate 3D part geometries that traditional stamping cannot always achieve. Whether it's a prototype run or high-volume production, SPI's fabrication team works directly with engineering departments to develop gasketing and insulation solutions that perform under real-world thermal and mechanical demands.
Why Choose SPI?
- Over 40 years of experience in specialty fabrication and insulation distribution
- CNC precision cutting technology for tight-tolerance automotive and OEM components
- Broad market reach across commercial, industrial, marine, and transportation sectors
- Custom fabrication services including prototyping, low-volume runs, and high-volume production
- North American footprint with sales and service centers throughout the U.S. and Canada
- 35,000+ SKUs across thermal, acoustic, fire protection, and specialty insulation applications
Whether you're sourcing fabricated sealing components for a vehicle assembly line or need custom insulation gaskets engineered to specification, SPI brings the technical depth and manufacturing precision to deliver. Their commitment to quality and localized service has made them a trusted partner across some of the most demanding applications in transportation and heavy industry.