Denso North America

Leaders in Corrosion Prevention

Denso North America is a subsidiary of Winn & Coales International, a leading manufacturer of anti-corrosion coatings that include Protal liquid epoxiesDenso petrolatum tapesmasticsprimersbitumen tapesbutyl tapeshot applied tapes, and a full line of marine pile protection systems. Winn & Coales was originally established as a business in London, England, in 1883, and the first petrolatum tape manufactured in the UK was Denso tape, manufactured under license by Winn & Coales (Denso) Limited. Denso tape was developed over 80 years ago for the “Long Life Protection” of buried steel pipelines against corrosion. The Denso SeaShield Marine Systems is a full range of steel, concrete, timber and steel sheet pile rehabilitation and corrosion protection systems that include fiberglass forms, epoxy grouts, underwater epoxies, injectable epoxies, petrolatum tape wrap systems and much more.

Denso North America offers a number of products to meet your Corrosion Prevention needs. Click the links in the descriptions below to learn more. And don't forget to check out our Monthly Product Spotlight.

Protal Pipeline Liquid Coatings

Protal is Denso’s line of Protective Pipeline Coatings that can be applied by hand or spray method. We offer a full range of fast cure, high build epoxies for a variety of above and below ground corrosion protection. Our Protal Pipeline Liquid Coatings can easily be applied in high and low temperature environments. Our anti corrosion coatings are also great for protecting girth welds, tie-ins, cadwells, fittings, fabrications, repairs to FBE and rehabilitation to existing pipelines. Our pipeline coatings are high build, up to 50 mils in one coat.

Petrolatum Tape Systems

Denso’s Petrolatum Tapes or Wax Tapes have been around over 80 years, with Denso Tape being the first one developed. These high performance petrolatum tape products provide above & below ground and underwater protection to pipelines, fittings, tank bases, steel structures and many more. Our petrolatum tape wrap systems can easily be applied by hand to most surfaces in arctic and tropical temperature environments.

Sealing and Molding

Denso’s self-supporting molding compounds for irregular surfaces, such as flanges and couplings, used in conjunction with petrolatum tape or wax tape systems. They provide a smooth profile to minimal prepared surfaces (SSPC SP 2-3) and contain no VOC’s. Water, acid or salts from the environment do not affect Denso’s sealing and molding mastics.


Denso paste and primers are used in conjunction with petrolatum tape and SeaShield Marine corrosion control systems. Our primers contain moisture displacing corrosion inhibiting compounds that is easily applied by hand or brush.

Bitumen Tapes and Butyl Tapes

High performance adhesive tapes for above ground and below ground pipeline corrosion protection, weld joints, fittings, fabrications and repair of geomembranes. Denso offers a complete line of cold and hot applied tapes ranging in 10 to 80 mils in thickness.

Protective Outerwraps

To protect your pipeline’s external corrosion coatings during installation, from directional drilling and rocky backfills to name a few, Denso offers an array of Protective Outerwraps. From fiberglass spacers to protective pipeline mesh Rock Shield we got you and your pipelines covered.

SeaShield Marine Systems

A full range of steel, concrete and timber pile rehabilitation systems that include petrolatum tapes, wax tapes, fiberglass jackets, epoxy grouts and many other products.

Archco Linings and Coatings

Denso Archco Linings - Internal Linings & External Coatings for Corrosion Control. The Archco system provides linings and coatings corrosion protection for: Crude, Gas & Diesel Tanks, Ethanol Tanks, Petrochemical Tanks, Heat Exchangers, Knock Out Drums, Chimes Areas, Bund Areas, Pressure Vessels and Internal Pipes & Valves.

Road Products

A full line of road and maintenance products that are rugged, flexible and seals asphalt to steel and / or concrete surfaces to help provide corrosion protection and repairs to streets, parking lots, municipal castings and more.  
  • Address 9710 Telge Road
    Houston, Texas 77095

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