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Available in imperial and metric sizes. Popular materials include Nitrile, Hydrogenated Nitrile , Genuine Viton™ and low temperature Viton™.

Back-Up Rings

Hi-Tech Seals’ back-up rings are manufactured from standard and high-performance elastomers and thermoplastics compounds. Our KasPex™ PEEK MP39 is commonly used in high pressure and high temperature applications, other materials include nitrile, PTFE, and fluorocarbon/Viton™. Our back-up ring profiles offering includes solid flat, solid contoured, scarf cut, spiral cut, and butt cut. Close tolerance rings are available upon request.


Available in O-ring or quad loaded styles with a beveled or straight lip. Standard materials include urethane, Viton™, Hydrogenated Nitrile .


The T-seal design consists of a T-shaped elastomer component supported by a back-up ring on both sides. The combination of these elements results in a stable seal that ensures a positive sealing lip configuration. Popular materials include NBR, HNBR and FKM/Viton™ for the elastomer component and KasPex™ PEEK for the back-up rings.

Coil Tubing Stripper Elements

The functions for coil tubing stripper elements are both safety and operational. Stripper elements, also referred to as packers, are designed to seal between the coil tubing and the outside world. This prevents well fluids from escaping into the air in general use and emergency situations. Urethane is often used as the material of choice for these elements as it can operate in tough environments and can resist aggressive chemicals.

Our dual durometer stripper elements are made from specialty BoKure™ urethane compounds that display exceptional resistance against water, diesel oil, and chlorine. The general operating temperature range of the elements are -51°C to 93°C (-60°F to 200°F).

Door Seals

Door seals are stocked in custom sizes and materials.

Large Bore Piston Seals

Aftermarket seals are available in Shaffer, Townsend, Sentinel and Hydril styles.

Inner BOP Seals

Composed of Hydrogenated Nitrile and Carbon Steel. Common line sizes include 3/16”, 7/32”, ¼”. 5/16”, 3/8”, 15/32” and slickline.

Outer BOP seals

Available in Hydrogenated Nitrile .

Blue Bullet Wireline Packing

Blue Bullets are an exclusive design composed of an engineered elastomeric compound, which is then coated in PTFE. Hi-Tech Seals’ Blue Bullets have been proven to out last other stuffing box packing by up to 50%. Enhanced performance increases the time between maintenance cycles, thereby saving wireline crews time and money.

Check out our flyer: PDF

Packoff Oil Savers

Available for wire sizes 1/8”, 5/16”, 7/32” and ¼”. Popular styles include C, CL, H, HR and 410.

G Style Packoff Elements

Contains a dual coil spring in the heel. Available in 2”, 2-1/2”, 3” and 4”.

A3 Elements

A3 Elements are a three-piece element that contains a coil spring in the heel. Common API sizes include 1.900”, 2-1/16”, 2-3/8”, 2-7/8”, and 3-1/2”.

Otis and Baker Vee Packing

Visit the size information page.