Waterproof Plywood (also called BWP Plywood – Boiling Water Proof) is a type of plywood designed to resist water penetration, making it suitable for use in moisture-prone or fully wet areas.

It’s manufactured with high-quality hardwood veneers bonded using phenol-formaldehyde (PF) resin under high temperature and pressure, which ensures the glue lines remain intact even when exposed to boiling water for extended periods.

Structure & Manufacturing

• Core Material – Usually hardwood veneers (gurjan, eucalyptus, etc.) for higher strength.

• Adhesive – Phenolic resin (PF), which provides waterproof bonding.

• Layers – Cross-laminated veneer sheets for stability and resistance to warping.

Appearance

• Smooth surface, can be overlaid with laminate, veneer, or paint.

• Color – Usually brownish due to phenolic resin, but can be coated or polished.

Key Features

• 100% waterproof – Can withstand boiling water for up to 72 hours without delamination.

• High strength & durability – Long lifespan even in harsh weather.

• Termite & borer resistant – Usually treated with preservatives.

• Dimensionally stable – Minimal expansion or contraction.

• Weatherproof – Suitable for exterior and marine use.