Marykate

MaryKate: Professional Marine Care Trusted by Boaters

When it comes to keeping a boat looking its best, few names carry as much weight on the water as MaryKate. A dedicated marine care brand under the umbrella of CRC Industries, MaryKate has built a reputation for delivering chemically precise, results-driven cleaning and detailing solutions engineered specifically for the demands of the marine environment. Whether you're a weekend recreational boater or a marina professional, MaryKate products are formulated to tackle the unique challenges that salt, algae, waterline stains, and sun exposure create for boat surfaces.

The Story Behind the Brand

MaryKate's roots in marine maintenance run deep. Acquired by CRC Industries in 2001, the brand became part of one of the world's most respected specialty chemical manufacturers — a company with decades of expertise developing chemical solutions for automotive, industrial, and marine markets. Under CRC's stewardship, MaryKate expanded its lineup while staying laser-focused on the needs of the boating community. The result is a tightly curated product range that boat owners and marina technicians have come to rely on season after season.

What Sets MaryKate Apart

MaryKate's flagship product, On & Off Hull & Bottom Cleaner, has become something of a legend in the marine world. It is widely recognized as the marine industry's number one product for hull cleaning, offering a fast-acting, brush-on/rinse-off solution for even the most stubborn waterline stains. The lineup also extends to gel formulas, pontoon-specific cleaners like Aluminex, vinyl treatments, and a range of other specialty appearance products — giving boaters a comprehensive toolkit for maintaining their vessels from bow to stern.

A key strength of MaryKate products is their surface intelligence. Formulas like the On & Off cleaner are specifically engineered for fiberglass and gelcoat, removing waterline stains, algae, barnacle marks, rust, and exhaust deposits without harming those delicate surfaces. This level of specificity reflects the brand's marine-only focus — these aren't general-purpose cleaners repurposed for boats; they're built from the ground up for the rigors of aquatic environments.

MaryKate Deck & Hull Cleaners

At the heart of the MaryKate catalog is its lineup of Deck & Hull Cleaners — the product category that made the brand famous. From liquid formulas to thick gel versions that cling to vertical surfaces for deeper penetration, MaryKate offers options suited to a variety of hull materials and cleaning challenges. Whether you're prepping your boat for a new season or maintaining it mid-summer, these cleaners deliver professional-grade results with minimal effort.

For boaters who take pride in their vessel's appearance and value proven, marine-specific chemistry, MaryKate represents a trusted standard in boat care.