40 Years & Counting
Mer-Ko Decking systems have over 40 years of history as one of the original acrylic decking systems.
Your No. 1 Choice
Advanced formulas and quality control make our waterproofing systems a first choice for professionals.
For extra confidence check out our bonded Shur Deck system with reinforcing fabrics.
Our full floating system can be used over concrete or plywood.
Our Systems are Rated
The Mer-Ko Shur Deck and Weather Deck systems are Class A and 1-Hour Fire Rated.
Mer-Ko Systems are VOC compliant water-based technologies.
Mer-Ko Decking systems are Products of the USA. All of our coatings are made locally in San Diego, California.
Get It Right
Mer-Ko offers a variety of decorative and non-skid options, so you get the right coating, whatever your needs.
Under New Management
Acquired by Westcoat Specialty Coating Systems, Mer-ko has undergone some exciting improvements.
News & Events
Mer-ko by Westcoat has received IAPMO Class A and 1 Hour Fire RatingWe are excited to announce that Mer-ko by Westcoat has received Class A and 1 Hour Fire Rating IAPMO Listings. These listings will replace the former expired ICC listings for Shur Deck (#3200) and Weather Deck (#2009). The Uniform Evaluation Report ER-517, for Mer-Ko by Westcoat, was issued on July 27, 2017. Both of the...
Mer-Ko Product ID and Description Names UpdatedNew product ID's and descriptions have been given to the Mer-Ko product line. This has been done to enhance consistency between products and to bring the Mer-Ko products in line with the naming conventions of the rest of the Westcoat product line. To aid the transition to this new product naming, here is a a...
Meet the Mer-ko rep!Robert Ryan Mer-ko Sales Representative Robert is coming aboard as our Mer-ko Sales Rep and will be focused on supporting current applicators with technical and application questions, getting Mer-ko specified with architects and growing the brand right here in California. We are excited to have him on our team as his waterproofing expertise has grown since his...
New Colors Available!Mer-Ko Seal is a high-performance coating used with MerKo’s Shur Deck and Weather Deck decking systems; it is also used for resealing existing acrylic coated deck systems. This 100% acrylic coating has excellent resistance to weathering and dries quickly. Mer-Ko Seal comes in nine standard matte colors. See all of the available Mer-Ko Seal Topcoat...
Get to Know the Mer-ko Systems!A lot has changed since we acquired Mer-Ko Shur Deck and Weather Deck systems and we think for the better! We have brought these two systems in house to continue improving on the success of 30 year old systems. We know what it takes to make your deck sparkle, rain or shine. Shur Deck Metal lath reinforced...
Welcome to the New Mer-Ko.com!Westcoat is pleased to announce the purchase of the Mer-Ko brand from parent company Parex. The purchase agreement, signed April 14, 2015, certifies Westcoat receiving full and exclusive rights to the Mer-Ko name and its two premier waterproof decking systems. Mer-Ko, one of the original manufacturers of waterproofing systems has been producing widely used elastomeric deck...