3-Ply Shuttering Board (also known as 3-layer formwork panel or triply shuttering plywood) is a high-performance, engineered wood product exclusively designed for concrete formwork applications in modern construction. It is constructed by bonding three solid wood layers or veneers under high temperature and pressure, forming a rigid, stable panel that serves as a temporary mold to contain and shape wet concrete until it cures.

Core Structure & Materials

• Layer Composition: Consists of three cross-laminated layers (outer face veneers + inner core). The grain direction of the outer layers is typically perpendicular to the inner core layer, which maximizes structural strength and minimizes warping.

• Raw Materials: Commonly manufactured from softwood species such as Spruce, Fir, Pine, or Radiata Pine, chosen for their good strength-to-weight ratio and flexibility.

• Adhesive: Bonded with WBP (Water Boil Proof) MUF (Melamine-Urea-Formaldehyde) glue or E1 grade eco-friendly adhesive, ensuring exceptional water resistance and structural integrity under wet conditions.

• Surface Treatment: Both faces are sand-smooth and coated with a yellow, durable melamine resin film (phenolic resin), which provides a waterproof barrier, easy concrete release, and a smooth finish to the cured concrete surface.

• Edge Sealing: Panel edges are sealed with yellow waterproof paint to prevent moisture penetration and edge damage during handling and reuse.

• Parameter	Standard Details
  Thickness	Primarily 21mm (3×7mm) or 27mm (3×9mm)
  Standard Sizes	500mm (Width) × 2000mm, 2500mm, 3000mm (Length)
  Moisture Content	Controlled at 10%–13% for dimensional stability
  Surface	Double-sided, sanded, yellow melamine coated