Basic Info
This marine grade waterproof plywood is designed for high humidity and salt spray environments. It uses anti-corrosion pine core material and high-performance waterproof phenolic adhesive pressed into panels, featuring excellent water resistance and salt corrosion resistance. It can be used for ship manufacturing, coastal engineering, floating platforms and other scenarios, providing reliable high-strength panel solutions for marine engineering projects meeting strict industry standards.
Customer reviews
Emily · Marine Architect
From a design perspective, this marine plywood offers excellent strength-to-weight ratio for our custom yacht projects. The alternating grain direction in each veneer provides dimensional stability that's critical for large curved surfaces. We recently used 18mm sheets for a transom rebuild, and the material maintained its shape perfectly during the cold-molding process. The lack of voids in the core layers prevents telegraphing through finished surfaces. It's become our specified material for all structural marine applications.
Emily · Marine Architect
From a design perspective, this marine plywood offers excellent strength-to-weight ratio for our custom yacht projects. The alternating grain direction in each veneer provides dimensional stability that's critical for large curved surfaces. We recently used 18mm sheets for a transom rebuild, and the material maintained its shape perfectly during the cold-molding process. The lack of voids in the core layers prevents telegraphing through finished surfaces. It's become our specified material for all structural marine applications.
Robert · Marine Surveyor
In my 15 years of inspecting vessels, I've seen how inferior plywood fails in marine environments. This product consistently meets the highest standards - no core gaps, consistent glue lines, and proper face/back veneer thickness. Recently surveyed a patrol boat with this plywood in its superstructure after 5 years of service; the material showed no moisture absorption or fungal growth. The manufacturer's documentation of wood species and treatment processes is thorough, which is essential for compliance with marine safety regulations.
Robert · Marine Surveyor
In my 15 years of inspecting vessels, I've seen how inferior plywood fails in marine environments. This product consistently meets the highest standards - no core gaps, consistent glue lines, and proper face/back veneer thickness. Recently surveyed a patrol boat with this plywood in its superstructure after 5 years of service; the material showed no moisture absorption or fungal growth. The manufacturer's documentation of wood species and treatment processes is thorough, which is essential for compliance with marine safety regulations.
Product Description
Product features:
It uses durable pine core material that has undergone strict degreasing and drying treatment to avoid deformation caused by wood moisture content changes. The waterproof phenolic adhesive can resist erosion from long-term immersion in seawater and rainwater, with salt corrosion resistance reaching grade 5, meeting international shipbuilding material standards. Double-sided sanded treatment ensures smooth and flat surface, adapting to ship interior and hull construction needs. It has strong nail holding power, firmly fixing hardware accessories without loose nail holes.

Product specifications:
Each sheet has a uniform size of 2440mm × 1220mm, with five thickness options: 12mm, 15mm, 18mm, 21mm and 25mm. The net weight per sheet is about 25kg. The transverse static bending strength is ≥15MPa, and water absorption rate is ≤8%. The waterproof rating reaches EN 314-2 Class 1, and it can be immersed in seawater for more than 30 days without adhesive failure or deformation. It complies with US ABS Marine Certification and ISO 14001 environmental protection standards.
Product application:
It is mainly used for ship manufacturing, yacht interior, coastal wharf construction, floating docks, outdoor pool peripheral facilities, salt field engineering and other scenarios. It is suitable for long-term exposure to salt spray and humid environments, providing high-strength and corrosion-resistant panel support for marine engineering and heavy outdoor facilities. It meets material procurement standards of global maritime industry, providing reliable panel solutions for shipbuilders worldwide.
Frequently Asked Questions (FAQ)
Q:Why is marine plywood recommended for outdoor handicrafts?
A:Marine plywood's waterproof glue and rot-resistant hardwood layers withstand humidity. It maintains integrity in garden decor/outdoor sculptures, with 5+ years lifespan untreated.
Q:What thickness options are available for marine waterproof plywood?
A:Standard thicknesses: 1) 6mm for interior boat paneling; 2) 9-12mm for decks and hulls; 3) 18-25mm for structural components. Custom thicknesses up to 50mm can be special-ordered for heavy-duty marine applications.
Q:How to identify genuine marine-grade plywood?
A:Authentication tips: 1) Look for BS 1088 or Lloyd's Register certification stamps; 2) Check for uniform, knot-free veneers on both faces; 3) Verify waterproof phenolic resin adhesive (brown glue lines); 4) Genuine marine plywood will have 'marine grade' marked on edges.