Description
Product Introduction: Formwork Plywood
Formwork plywood, also commonly referred to as shuttering plywood or concrete form ply, is a high-performance engineered structural plywood specifically designed for concrete formwork applications in construction projects. It serves as a temporary mold that holds freshly poured wet concrete in place, maintaining its desired shape until the concrete sets and gains sufficient structural strength, making it an indispensable material in modern construction.
Crafted with precision and advanced manufacturing technology, our formwork plywood combines superior raw materials and professional processing to meet the rigorous demands of construction sites. The core is composed of multi-layer selected hardwood veneers, such as eucalyptus, birch, or poplar, which are cross-laminated at 90-degree angles. This cross-graining structure enhances the panel’s overall strength, stiffness, and dimensional stability, effectively preventing warping, splitting, or deflection even under the immense hydrostatic pressure of wet concrete.
To ensure optimal performance in harsh construction environments, the surface of our formwork plywood is coated with a high-quality phenolic or melamine resin film (available in black, brown, or other custom colors). This film creates a smooth, impermeable, and wear-resistant surface that offers multiple advantages: it ensures a ultra-smooth finish on the cured concrete, minimizing the need for post-pour sanding or plastering; it acts as a waterproof barrier, preventing moisture from the concrete from penetrating and damaging the plywood core; and it enables easy demolding, reducing construction time and labor costs.
Our formwork plywood is bonded with WBP (Weather & Boil Proof) phenolic resin glue, which maintains strong adhesion even when exposed to prolonged moisture, humidity, or high temperatures during the concrete curing process. This superior water resistance effectively prevents delamination (separation of layers) and swelling, ensuring the panel’s durability and reusability. With proper handling and maintenance, our formwork plywood can be reused 15-30+ times, significantly reducing material waste and overall construction costs compared to standard plywood.
Key Specifications
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Core Material: Selected hardwood (eucalyptus, birch, poplar, or mixed hardwood)
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Surface Coating: Phenolic/melamine film (brown, black, or custom colors)
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Glue Type: WBP phenolic resin, melamine, or MUF glue (waterproof and boil-proof)
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Density: Approximately 680-720 kg/m³ (varies by core material)
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Moisture Content: 8-12% (meets international industry standards)
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Thickness: 9mm-30mm, regular sizes include 12mm, 15mm, 18mm, 21mm (±0.2-0.5mm tolerance)
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Panel Size: Standard 1220mm×2440mm (4×8ft), customizable sizes (1250×2500mm, 1500×3000mm, etc.) available upon request
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Reuse Cycles: 15-30+ times (depending on concrete mix and on-site care)
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Certifications: ISO 9001, CE Marking, FSC® (optional), compliant with GB/T 17656-2018, EN-13986, and AS 6669 standards
Key Features & Advantages
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High Pressure Resistance: The multi-layer cross-laminated core provides excellent load-bearing capacity, withstanding the heavy pressure of wet concrete without deformation or failure.
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Superior Water & Moisture Resistance: WBP glue and phenolic film coating ensure the panel remains stable in humid, wet, or harsh weather conditions, avoiding delamination and swelling.
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Smooth & Easy Demolding: The phenolic film surface is non-stick to wet concrete, enabling quick and easy demolding while ensuring a high-quality, smooth concrete finish.
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Excellent Dimensional Stability: Precision manufacturing and cross-graining structure minimize warping and shrinkage, ensuring tight joints between panels and accurate concrete dimensions.
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Durable & Reusable: High-quality materials and professional bonding extend the service life, allowing multiple reuses and reducing construction costs.
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Easy to Process & Install: Lightweight design makes it easy to handle, cut, and fix on-site using standard construction tools, adapting to various structural shapes and project requirements.
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Eco-Friendly: Made from renewable wood resources, with FSC® certification available to support sustainable construction practices.
Applications
Our formwork plywood is widely used in various construction scenarios, suitable for both residential and large-scale commercial, industrial, and infrastructure projects. Typical applications include:
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Concrete formwork for high-rise buildings, residential complexes, and commercial structures
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Formwork for bridges, tunnels, and highway infrastructure projects
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Foundation walls, columns, beams, and floor slabs casting
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Precast concrete manufacturing
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Industrial flooring systems and underground construction projects
We are committed to providing high-quality formwork plywood that meets the diverse needs of global construction customers. With customizable specifications, reliable quality, and competitive pricing, our formwork plywood is your ideal partner for efficient, cost-effective, and high-standard construction projects. Whether you are a contractor, builder, or distributor, we offer flexible supply solutions and professional after-sales support to ensure your project runs smoothly.
Usage Notes
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Quality Inspection Before Use: Carefully check the panels for obvious damage, cracks, or deformation before application to ensure they meet construction requirements. Replace any unqualified panels in a timely manner.
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Storage and Stacking: Store the formwork plywood in a dry, well-ventilated indoor area away from direct sunlight and rain. When stacking, place wooden blocks under the panels to keep them off the ground, align the edges, and control the stacking height within 2 meters. For outdoor stacking, cover with waterproof cloth to prevent moisture absorption and warping.
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Cutting and Processing: Use 300mm diameter, 80-100 tooth alloy saw blades with a secondary motor for cutting to ensure straight edges. Pad the panel bottom when cutting or drilling on-site to avoid burrs, and apply water-resistant phenolic paint three times on cut edges or holes to prevent moisture penetration.
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Installation Requirements: Fix panels firmly on the stable support structure (meeting design load requirements) with screws or steel nails. Lay wooden squares longitudinally near panels, minimize gaps between panels, and seal gaps with putty or adhesive tape to prevent slurry leakage. Note that the panel’s long direction is the strong direction and the short direction is the weak direction.
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Surface Treatment: Apply release agent evenly on the panel surface before pouring concrete (not required for the first three uses) to avoid adhesion and facilitate demolding. Do not scrape the surface with hard objects to prevent resin film damage.
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Demolding and Maintenance: Demolish panels only after concrete is fully cured to avoid surface damage. Handle panels gently during demolding, clean the surface promptly after demolding, apply release agent, and stack neatly in a dry, ventilated place for reuse.
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Safety and Fire Prevention: Construction personnel should wear protective equipment (gloves, safety helmets, goggles, etc.) during installation and demolding. Keep panels away from open flames and high-temperature objects, with the stacking area at least 30 meters from fire sources and equipped with fire-fighting equipment.
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Transportation Precautions: Avoid collision and extrusion during transportation, fix panels firmly to prevent edge and surface damage, and do not transport in heavy rain to avoid moisture absorption.
