Plastics + Films


SRP Converts And Stocks A Variety Of Thin Plastics And Film Products That Can Be Custom Converted Into Electrical Barrier Gaskets

SRP has the capabilities to manufacture custom plastic and film gaskets, seals, and insulators for a wide variety of industries and applications. Our capabilities include: die-cutting, knife cutting, rotary die-cutting, waterjet cutting, and laser cutting.

Plastics and films generally have good aging properties and will not deteriorate over time. Most plastic and film materials are strong and flexible having a high tensile strength, flexibility, durability as well as dimensional stability. Premium plastics and film products have low shrinkage, low moisture absorption, good dielectric properties and high thermal resistance.

SRP typically converts or die-cuts plastics and films ranging from .001” to .125” thick. However, when utilizing our waterjet, we can cut plastics up to .250” thick. All gaskets, seals, and insulators are cut per our customers specifications, and can be supplied with a pressure sensitive adhesive. We can manufacture custom jobs from sampling and prototyping, to short runs and full production.

Plastic + Film Gaskets Materials

SRP offers a full line of plastic and film materials in a variety of densities and thicknesses. Common plastic and film materials converted in our facility include:

Formex™ Polypropylene

Formex electrical insulation products are crafted of durable and flexible polypropylene material, offering superior protection for sensitive electronic components & machinery such as air baffles or other baffles, and serve as a barrier to prevent consumers and service workers from experiencing electric shock. Its superior dielectric strength, dimensional stability, and resistance to moisture and chemicals make it the top choice for engineers and designers. Unlike other heat insulating materials, Formex electrical heat insulation materials provide lightweight, flame retardant protection that meet strict safety and environmental standards at a low cost.

Kapton® Polyimide  

Kapton polyimide films have set the industry standard for over 45 years in high performance, reliability and durability, with a unique combination of electrical, thermal, chemical and mechanical properties that withstand extreme temperature, vibration and other demanding environments. For applications where extremes of heat and vibration are the norm, designers rely on Kapton film gaskets because of its ability to maintain its unique combination of mechanical properties under the harshest of conditions.

Melinex® Polyester (PET) Film 

Melinex is a widely used film found in hundreds of industrial, electronic, printing, imaging, specialty and consumer products. One of the major benefits of Melinex is its flexing resistance capabilities. Other benefits include resistance to solvents and embrittlement. Melinex has excellent performance at elevated temperatures (up to 446ºF) due to the crystallization process. Melinex film gaskets offer superior thermal stability.

Mylar® Polyester (PET) Film

Mylar is a DuPont developed and manufactured polyester (PET) film. Mylar does not become brittle with age under normal conditions because there are no plasticizers, it is archival quality, dimensionally stable, chemical resistant, color consistent, has good clarity, is non-yellowing and non-tearing, with a temperature range of -100 to 300F. Mylar film gaskets are electrically insulating, have balanced tensile properties, and excellent moisture resistance.

Lexan® Polycarbonate Film 

Lexan Polycarbonate is an excellent thermal insulator, and has a strong, impact resistant, glass-like surface. Considered a thermoplastic, Lexan is used in applications requiring a wide temperature service range, excellent dialectical and chemical properties, and dimensional stability. Lexan film’s other qualities include: high durability, design flexibility, and structural integrity. It provides excellent clarity, light transmission and UV stability. Lexan is flame retardant and has UL94 V-0 or VTM-O ratings. 


SRP: Building Relationships through Converting Solutions Since 1951

We provide our customers with everything from material sampling and product prototyping to full manufacturing, packaging, and delivery. We provide value to our customers by delivering exceptional customer service, engineering solutions, and quality products to meet their every need. All plastics and films products can be supplied with Pressure Sensitive Adhesives. Many of these materials meet industry specs for the military, automotive, and aerospace industries.

For more information, you can reach SRP at or 847-593-5630.