SeaMark is a combination of Sunbrella, the premier woven acrylic fabric, and Haartz, textured marine-grade vinyl resulting in a colorfast, waterproof fabric that holds up well in the harsh conditions of any marine environment. Colors are extremely consistent and can be mixed and matched with Sunbrella Marine Grade, Plus, Supreme. Use for dodgers, biminis, tops, boat covers, awnings, equipment covers, and bags. 16 oz. per square yard. 5 year warranty.

Breathe Ability (1): The vinyl coating eliminates the fabrics ability to breathe. Provide appropriate ventilation if using this material for any type of enclosure.

Waterproof (5): SeaMark is completely waterproof! Use a #16 needle or smaller when sewing this fabric to minimize potential seam leakage.

Abrasion Resistance (4): The vinyl back surface is very abrasion resistant. Fortunately the coated side is usually the side that rubs against the boat’s framing, track, rails, etc.

UV Resistance (5): There is no better material for outdoor use than SeaMark (Sunbrella is the outer surface). Excellent longevity and colorfastness even when exposed to harsh sunlight.

Colorfastness (5): Because Sunbrella is the outer fabric, the yarn color runs throughout the cross-section of the fiber and equates to excellent colorfastness.

Clean Ability (4): Easy to clean, and although a soft tight weave, dirt easily washes free from the crevasses of the yarn. The vinyl coating on one side does make dislodging dirt slightly more difficult than cleaning standard Sunbrella Marine Grade. Vinyl side cleans easily with a sponge.