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How long will my marine coatings last?

Marine coatings durability

Durability is often one of the first topics to come up when discussing marine coatings. How long will this coating last? Given our emphasis on the importance of marine coatings maintenance, it’s something we put a lot of thought into. As with any coating application, a lot of factors go into predicting the lifespan of marine coatings.

When it comes to exterior marine coatings and durability, ship and barge owners have some pretty simple expectations. A good exterior marine coating must have excellent corrosion protection, high UV-resistance (it’s not like tugboats pull into a garage come quitting time), high gloss retention, and solid abrasion resistance characteristics.

Even with these characteristics, the coatings that protect the hulls of barges are faced with an uphill battle. With all the abuse they encounter—from raking against other barges, scraping river bottoms, hitting driftwood and other debris—it’s normally a good idea to maintain these coatings every two to four years, when the barge is dry-docked for maintenance.

Besides the hull, coatings in other areas of a vessel face their own challenges. Non-skid coatings are safety coatings that are popular because they reduce or even eliminate fall hazards in high-traffic areas. But because non-skid coatings are subjected to such heavy foot traffic, they’re susceptible to wear and it’s important that owners keep a close eye on them and pick the best option for their application.

One solution we often recommend is an epoxy-based system, where an aggregate is broadcast onto an initial, wet application and then a topcoat is applied over that. The aggregate can be anything that can be ground up into a fine material that’s still course enough to cause friction. Some of the most common are glass, coal slag and sand. When it becomes apparent that the coating has reached the end of its life expectancy, it should be replaced immediately.

A consultation with a certified coatings professional will leave a barge owner with a much better understanding of how long a coating will hold up under given conditions. This meeting should also work to establish a maintenance plan, which will simplify service schedules moving forward, and give the owner a better idea of how to budget for coatings. The professional should be able to give options at several price points, tips for extending the coating’s lifespan, instructions for proper maintenance of the coating and specific recommendations for how and when to reapply the product.

If you’re ready to talk now about marine coatings for your barges, get in touch with US Coatings today.

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