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Corrosion Preventative Plastics

Corrosion Proofer

CPT-600 Plastic Films


SEI Corrosion Proof Plastic Films utilize CPT™ Technology (Corrosion Preventative Technology). This is a highly charged and durable migrational molecule that has the ability to penetrate and travel through a wide variety of mediums in order to find and bond with all types of metal. The CPT molecule needs to fulfill its ionic attraction by bonding with either ferrous or non-ferrous metal. Once the CPT molecule has found metal it creates a highly durable, resilient and robust chemical bond. This bond provides extensive protection for long periods of time in very harsh environments.


The SEI Corrosion Proof  CPT Films combine leading edge film technology with the most environmental and effective corrosion prevention technology for all metals in industrial and high-tech electrical applications. SEI Corrosion Proof Films protects metals from all types of corrosion including rust, tarnish, stains, white rust and oxidation for up to 5 years. SEI Corrosion Proof Films and bags replace conventional rust preventatives such as oils and inefficient desiccants. SEI Corrosion Proof Films eliminates all the degreasing or coating removal required in the past. Your product can now be used immediately. SEI Corrosion Proof Films are transparent, making it easy to identify metals and parts. All SEI Corrosion Proof products do not contain amines, phosphates or nitrites. They are environmentally acceptable for use and are much safer than traditional anti-corrosion products. SEI Corrosion Proof Films, wraps, bags and anti-static bags are non-toxic and recyclable.  SEI Corrosion Proof Films are extremely durable and have excellent puncture resistance and tear strength. SEI Corrosion Proof Films protect metal objects as small as a needle, as sensitive as a semi-conductor and as large as the contents of an oceangoing container. Metal parts packaged in SEI Corrosion Proof Films receive continuous protection against salt, excessive humidity, condensation, moisture, aggressive industrial atmospheres and dissimilar metal corrosion. The CPT molecules vaporize and then condense on all metal surfaces in the enclosed package. They reaches every area of your part, protecting its exterior as well as hard-to-reach interior surfaces. You get complete product protection during operation, storage as well as during domestic and overseas shipments, eliminating all corrosion for good.

Sizes & Constructions

SEI Corrosion Proof Films are heat sealable and can be used with all types of manual or automated heat-seal packaging and equipment. The material is available in a variety of bags and sheeting-reinforced film, Zip-Lock and Auto-Bags, gusseted liners, bags-on-a-roll, perforated sheeting, stretch film, coil covers, shrink film and tubing- to protect small or large parts. Antistatic (ESD) and fire retardant (FR) varieties are available as well as coextruded constructions. SEI Corrosion Proof Films is available in a variety of gauges, ranging from 2 to 20 mils (50-500 microns) and widths from 2" to 50' (5.1 cm - 15 m). It conforms to military specifications, MIL-B-22019-C and MIL-B-22020-C.

Physical Properties

  • [at 4 mils (100 microns)]
  • PSI Bar Tensile Strength at break (PSI) 4511.7/4085.831108.2/28171.5
  • Elongation at break (%) 878.3/872.9 6055.9/6018.7
  • Tear Strength (GF) 3056.0/2933.021071.1/20223.
  • Puncture Resistance (GF) 2554.0 17609.8

Corrosion Proof Plastic Films Product Data Sheet

Corrosion Prevention Products Brochure

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