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3M™ Scotchkote™ Product Provides Rugged Pipeline Protection That Is Easy to Apply

3M™ Scotchkote™ Product Provides Rugged Pipeline Protection That Is Easy to Apply

3M™ Scotchkote™ Liquid Epoxy Coating 328 is a 100 percent solid, two part epoxy system designed for applications that require a rugged coating. Traditional liquid epoxy combined with proprietary technology creates enhanced impact resistance, gouge resistance and flexibility. The result is a versatile, easy to apply coating that can be used for corrosion protection and abrasion resistance in the most challenging applications.

The Market Need for Rugged Coatings

The Oil & Gas Industry has many options for field applied corrosion protection coatings ranging from Field Applied Fusion Bonded Epoxies (FBE), two part liquid epoxies, heat shrink sleeves, tapes, and coal tar enamel. More and more the popular choice has become the two part liquid epoxy coating. Two part liquid epoxies provide excellent corrosion protection and are easy to apply, but in many cases are less rugged and less flexible than the parent coating.

Field applied Abrasion Resistant Overcoats (AROs) are also an important tool in the pipeline protection toolbox. Every pipeline job has obstacles such as roads or rivers that may require directional drilling and/or thrust boring. In these cases, an ARO provides extra protection to the parent coating. Factory applied AROs based on FBE powders are good solutions, but field joints require a rugged and flexible field applied solution. Moreover, if only a short section of pipe needs additional protection, it may be more cost-effective to use a field applied ARO on a small section. However, many field applied ARO solutions are difficult to apply and may lack the post-cure flexibility to provide effective corrosion protection.

A 3M Solution for Multiple Applications

3M™ Scotchkote™ Liquid Epoxy Coating 328 strongly adheres to both metal and fusion bonded epoxy (FBE). As a result, it can be used as a primary corrosion protection coating for directional drilling, rocky terrain or other situations that require a rugged coating. Scotchkote 328 demonstrates high, post-cure flexibility (greater than 4.0° /PD at 70°F/20°C) compared to traditional liquid epoxy coatings. With low cathodic disbondment values, Scotchkote 328 can also be used where long-term adhesion is critical.

Abrasion Resistant Coating

3M™ Scotchkote™ Liquid Epoxy Coating 328 is applied just like traditional two-part epoxy coatings, making it easier to protect factory-applied FBE coatings for directional drilling, thrust boring, river crossings or similar applications. Scotchkote 328 is also ideal for protecting field joints on pipe coated with a 3M™ Scotchkote™ Fusion Bonded Epoxy Dual Coating System 6352 or 6352HF.

Scotchkote Liquid Epoxy Coating 328 exhibits enhanced cathodic disbondment, adhesion, abrasion resistance, flexibility, and impact resistance performance over traditional two part liquid epoxies. Learn more about Scotchkote at