Marine Plywood is a high-performance engineered wood designed for long-term exposure to moisture, high humidity or direct contact with water. Its core characteristics are structural waterproofing and excellent durability.
Adhesive Differences
Marine Plywood
Glue Type: Phenolic resin glue (PF glue) is used, which has strong chemical stability, water resistance, high temperature resistance and corrosion resistance. High quality waterproof glue (such as phenolic resin) is used, which makes it have excellent water resistance and corrosion resistance. International standards (such as BS1088) are strictly followed during the production process to ensure the high durability of the product.
Waterproofness: Even if it is immersed in water for a long time (such as the hull), the glue layer will not decompose and the bonding strength remains unchanged.
Ordinary Plywood
Glue Type: Urea-formaldehyde resin glue (UF glue) is often used, which is not necessarily a special waterproof glue, so its water resistance is generally poor.
Waterproofness: When exposed to water or a humid environment, the glue layer may hydrolyze and fail, resulting in delamination or deformation.
Optimization comparison of material selection
Marine plywood
Core wood: high density tropical hardwood
• The surface and core materials are made of Okoume, Eucalyptus, birch, with a density of ≥650kg/m³.
• The veneer is flawless: no knots, cracks or holes, ensuring tight bonding between layers.
Material selection
• No repair requirements: resin filling or veneer repair is prohibited, and the veneer integrity is high.
• International certification: in accordance with standards such as BS 1088, it is mandatory to use no defects A-grade veneer.
Wood characteristics
• Natural moisture resistance: tropical hardwood contains oil or silicon, and has strong resistance to water penetration.
• Low expansion rate: the moisture content is controlled at 8%-10%, and the deformation rate is <0.1% under humidity changes.
Material selection optimization comparison
Ordinary plywood
Core wood: mixed wood
• Common core materials are softwoods such as poplar, pine, fir, or low-grade birch.
• Core material splicing is allowed, and there may be defects such as tree knots and wormholes.
Material selection
• Repairs are allowed: putty can be used to fill cracks or veneer can be used to cover defects.
• General standards: only basic strength requirements need to be met, and there are no strict moisture resistance regulations.
Wood characteristics
• Strong hygroscopicity: softwood fibers are loose and easy to absorb water and swell (deformation rate can reach more than 0.5%).
• Poor stability: moisture content fluctuates greatly (usually 12%-15%), and it is easy to warp and crack.
Marine plywood is widely used in several industries due to its excellent water resistance, durability and structural stability. Here are some of the main application areas of marine plywood:
1. Shipbuilding: This is one of the most traditional application areas of marine plywood. It is often used to make the internal structure of the hull, decks, bulkheads and other parts that require high water resistance.
2. Architectural decoration: In the construction industry, marine plywood can be used as a formwork material, especially when pouring concrete. In addition, it is also suitable for interior decoration in humid environments, such as kitchens and bathrooms.
3. Furniture manufacturing: Although ordinary plywood is also widely used in furniture manufacturing, marine plywood is particularly suitable for the production of high-end furniture due to its beauty and durability, especially those products that require high durability and beauty.
4. Outdoor facilities: Marine plywood can be used in the construction of outdoor facilities, such as fences, terraces, garden sheds and other structures that may be exposed to the elements for a long time.
5. Industrial use: Due to its good mechanical properties, marine plywood is also used in various industrial products, such as packaging boxes, shipping pallets, storage containers, etc.
6. Special projects: In some projects with special material requirements, such as sewage treatment facilities and corrosive media handling areas in chemical plants, marine plywood can provide an effective anti-corrosion solution.
7. Art and design: Designers and artists may choose marine plywood to create unique works because it can provide a strong and versatile base material.