Is BWR and BWP plywood the same?
Author
Chief Chemist and Head - Quality Assurance
22 Years Plywood Manufacturing experience as manufaturing and quality assurance professional
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No, they're not the same — though they're often confused or even mislabeled in the market.
BWR (Boiling Water Resistant) — IS 710
Tested by boiling a sample for a set duration and checking if it holds together.
Resistant to moisture and humidity, suitable for kitchens and bathrooms.
Uses phenol or melamine-based adhesives.
The more commonly available "waterproof" plywood in the Indian market.
BWP (Boiling Water Proof) — also under IS 710, but higher standard
Subjected to a much more rigorous boiling water test (longer duration).
Truly waterproof, not just resistant — can withstand prolonged water exposure.
Uses only phenol-formaldehyde (phenolic) resin, which is more durable.
Sometimes called Marine Plywood.
More expensive and less commonly stocked.
Key difference in simple terms:
BWR can resist water for a while; BWP can withstand water for much longer without delaminating. BWP is the stricter, superior grade.
Conclusion
A practical note for India: The market is flooded with plywood labeled as BWP or "waterproof" that actually meets only BWR standards or worse. FlaerPly's offers the most robust Marine Grade & BWP plywood, backed by it's unique pressure tested process.
