The film faced plywood is a material of extreme significance for monolith building and construction, furniture manufacturing and playground equipping. film faced plywood can be easily cut & cleaned and hence it is easy to maintain.Film faced plywood with smooth or mesh surface. Widely used in the construction industry and vehicle production. It is easy to mount and work with.

Features

Waterproof and moisture-proof: The coating layer effectively prevents moisture penetration and improves the water resistance of the plywood.

Wear-resistant and durable: The coating increases the hardness of the board surface, making it more wear-resistant and suitable for high-frequency use occasions.

Beautiful and elegant: The coating can provide a variety of colors and textures to meet different decoration needs.

Easy to clean and maintain: The surface is smooth, not easy to stain, and easy to clean daily.

The production process of film plywood is the key process of combining functional film with plywood substrate. Its core lies in ensuring the firm bonding and surface quality of film and substrate. The following is the detailed process flow and technical points of film-faced plywood production:

1. Substrate preparation

Material selection: The substrate is usually ordinary plywood, mainly fast-growing wood such as poplar and pine. It is necessary to ensure that the substrate is flat, warp-free, and the moisture content is controlled at 8%~12% (too high may cause delamination).

Sanding treatment: Sand the surface of plywood on both sides or one side to remove burrs and impurities, make the surface smooth and uniform (the sanding mesh is usually 180~240 mesh) to improve the lamination fit.

2. Gluing process

Glue selection: Commonly used adhesives include:

Polyurethane (PU) glue: strong water resistance, suitable for humid environments.

EVA hot melt adhesive: high environmental protection and fast curing.

Water-based glue: low VOC, in line with environmental protection standards (such as E0/E1).

Coating method:

Roller coating: Use a glue roller to evenly coat the glue and control the glue amount (usually 80~150g/m²).

Spraying: Suitable for special-shaped or complex surfaces, but the glue utilization rate is low.

Airing time: After coating, it is necessary to let it air for a short time (about 5~10 minutes) to allow the glue to evaporate the solvent and enter a semi-dry state.

3. Lamination process

According to the film type and glue characteristics, it is divided into two mainstream processes: hot pressing and cold pressing:

(1) Hot pressing process

Applicable films: thermoplastic films such as PVC and PET.

Process flow:

Preheating: Preheat the substrate and film separately (substrate about 50~80℃, film 60~100℃) to reduce the temperature difference stress during hot pressing.

Lamination: Align the film and substrate and send them into the hot press. Press them together at high temperature (120~160℃) and high pressure (5~15MPa) for about 30~120 seconds.

Cooling and shaping: Rapid cooling (water cooling or air cooling) to avoid film shrinkage or wrinkling.

Advantages: High bonding strength and high efficiency (suitable for mass production).

Disadvantages: High energy consumption and precise temperature control are required, otherwise it is easy to cause film discoloration or substrate deformation.

(2) Cold pressing process

Applicable films: PP, some PET and other temperature-sensitive films.

Process flow:

Room temperature bonding: The glue-coated substrate and film are bonded at room temperature.

Pressurized curing: Apply pressure (3~8MPa) through a cold press, and the curing time is relatively long (several hours to 24 hours).

Advantages: Energy saving and avoidance of high temperature damage to the substrate and film.

Disadvantages: Low production efficiency and long glue curing time.

4. Purchase and use suggestions

Select materials according to needs: Choose PVC waterproof film for high humidity environment, and choose PET for texture.

Check quality: Observe whether the film surface is flat and free of bubbles, and whether the substrate is warped.

Environmental certification: Give priority to E0/E1 grade and CARB, FSC certified products.

Installation and maintenance: Avoid scratches with hard objects, and do not use strong acid and strong alkali solvents when cleaning.

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