Wayamba Ply Industries logo mark Wayamba Ply Industries
Private Limited Call +94 777 66 39 20
Manufactured in Pothuhera, Sri Lanka

Commercial grade W.B.P quality plywood, tested to hold.

High density plywood with superior bonding - laboratory tested by the Industrial Technology Institute for density, water resistance and glue line strength. Sheets, doors and building materials, direct from our Handugala factory.

633 kg/m³ Density
25.47% Water Absorption
✓ITI Certified Report SS 2510125
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ITI Tested
Report SS 2510125
W.B.P bonding grade ITI laboratory tested High density core Export quality certified
Test report — SS 2510125

What "W.B.P quality" actually means, in numbers.

Most plywood suppliers just say "good quality." We had ours tested by the Industrial Technology Institute of Sri Lanka. Here's what came back.

Property
Test method
Result
Density
ASTM D 2395
633 kg/m³
Water absorption (by weight)
ASTM D 1037
25.47%
Water absorption (by volume)
ASTM D 1037
16.91%
Thickness swelling
ASTM D 1037
1.72%
Tensile strength (machine / cross direction)
ASTM D 1037
>25 MPa
Glue line shear stress (machine dir.)
ASTM D 1037
3.26 MPa
Glue line shear stress (cross dir.)
ASTM D 1037
2.50 MPa
Tested by the Industrial Technology Institute, Materials Laboratory. Tensile strength exceeded the 25 MPa capacity of the test machine. Glue line failure occurred through the wood itself, with no delamination - the bond outlasts the timber.
Why W.B.P bonding

Built for sites that can't afford delamination.

HIGH DENSITY

Solid core, low waste

A denser core means fewer voids and less on-site trimming loss compared to standard grade sheets.

WATER BOIL PROOF

Holds up in humid sites

W.B.P adhesive resists Sri Lanka's humidity and site conditions far better than interior-grade bonding.

LAB VERIFIED

Independently tested

Every claim on this page is backed by ITI test report SS 2510125 - not just marketing copy.

Cross-section edge of W.B.P commercial grade plywood sheet
Plywood veneer layers showing bonding quality
Certifications

Paperwork you can check, not just claims.

Our plywood is independently tested by the Industrial Technology Institute.

ITI test report for non-coated commercial grade plywood, Wayamba Ply Industries, report SS 2510125

Non-Coated Plywood

Report No. SS 2510125 · Density 633 kg/m³ · Water absorption 25.47%

Get in touch

Order plywood direct from the factory.

Call, WhatsApp, or visit us in Handugala, Pothuhera.