Canvas 101

Marine Canvas and Plastic Windows

For marine applications, especially in the context of boats, yachts, and other marine vehicles, both canvas and plastic materials are used extensively for covers, enclosures, biminis, dodgers, and windows. These materials must withstand harsh marine environments, including UV exposure, saltwater, wind, and temperature fluctuations. Here's a breakdown of the main types of canvas and plastic windows used in marine applications:

Canvas Types

1. Sunbrella: A popular brand of marine canvas made from acrylic fibers. It's known for its durability, UV resistance, and ability to withstand the elements without fading or degrading. Sunbrella is often used for bimini tops, sail covers, and marine upholstery.
2. Marine Polyester: A durable, waterproof, and UV-resistant fabric, marine polyester is cheaper than acrylic fabrics but still offers good protection and longevity. It's used for boat covers, bimini tops, and other protective coverings.
3. Canvas Duck: A tightly woven cotton fabric that's been used for marine applications for centuries. Modern versions are often treated with waterproofing and UV protective coatings. It's less common now but is valued for its traditional appearance and breathability.

Plastic Window Materials

1. Polycarbonate: Known for its incredible strength and clarity, polycarbonate is often used for hard, rigid windows on boats. It's highly impact-resistant (virtually unbreakable) and can be treated for UV resistance. However, it's prone to scratching if not properly maintained.
2. Acrylic (Plexiglass): Acrylic windows are lighter and more scratch-resistant than polycarbonate but less impact-resistant. Acrylic is popular for its clarity and is often used for windshields and portlights. It's also UV resistant and more affordable than polycarbonate.
3. Vinyl (PVC) Windows: For flexible windows, such as those in canvas enclosures or dodgers, clear vinyl is the material of choice. It can be rolled up or folded and varies in thickness and quality. High-quality marine-grade vinyl is UV resistant, durable, and offers good clarity, but it can become discolored or brittle over time if not cared for properly. We carry Strataglass brand vinyl windows for their superior scratch resistance.

Considerations for Marine Windows and Canvas

• UV Resistance: Essential for longevity, as constant exposure to the sun can degrade materials quickly.
• Waterproofing: Materials must repel water to prevent mold and mildew growth, especially in humid marine environments.
• Durability: The ability to withstand wind, mechanical wear, and the marine environment without tearing or breaking.
• Maintenance: Some materials require more maintenance than others. For example, polycarbonate and vinyl windows need regular cleaning with specific products to prevent scratching and clouding.

When choosing materials for marine applications, it's crucial to balance factors like cost, durability, maintenance, and aesthetic preferences. Manufacturers often offer products specifically designed for marine use, incorporating features like UV stabilizers, mold and mildew resistance, and reinforced edges for added durability.