Doors

BWP grade plywood is made of a single select hardwood species and bonded with boiling water proof synthetic undiluted phenol formaldehyde adhesive. Its hardwood frames provide strength for the fitting of hinges.
It is chemically treated to protect against shrinkage, warping and cracks.
The thickness of the BWP grade plywood may be 6mm, 9mm, 12mm, 16mm, 25mm, etc. as per IS.
BWP flush door is extremely durable and has a good quality, exceptional finish and unique dimensional stability. These doors provide assured strength and safety.
It requires minimum maintenance. It has a better water resistance.
It is basically interior and exterior grade plywood. Therefore it is likely used where the furniture that sure get large amount of water i.e. bathroom door, outdoor wall paneling, flooring, etc.
BWP grade plywood more expensive than BWR grade plywood.
Also Read: Waterproof Flush Doors& its Advantages

BWR grade plywood is glued using synthetic phenolic resins giving it its unique water-resistant property. Superior diluted phenol formaldehyde (PF) resin is used for super bonding and hardwood species are used for long life.
BWR grade plywood is comparatively less strong as compared to BWP grade plywood.

MR Grade Plywood or Moisture Resistant Plywood
In this type of plywood, urea formaldehyde resin is used for bonding the plies to each other.
MR grade plywood can resist a certain degree of moisture and humidity only.
This grade is moisture resistant; it is not resistant to water. So this type of plywood is not used to make furniture perennially exposed to water.
The plywood is capable of resisting humidity and moisture.
The thickness of the MR grade plywood may be 3mm, 4mm, 6mm, 8mm, 12mm, 15mm, 18mm, 21mm, 25mm, etc. as per IS.
MR plywood has a very high internal strength.
Its cost is low.