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Plywood Glue Bond: Durability Classification

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Product Info

Guide to APA Trademarked Panels

Panel Grades

Veneer Grades

Panel Thickness

Glue Bond

Load Spans

Span Rating

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Plywood Glue Bond: Durability Classification

  • All APA trademarked plywood has a 100% fully waterproof glue line.
  • This was classified as being 'WBP (weather and boil proof), under the old BS 6566 Part 8 - Specification for bond performance of veneer plywood.
  • The information below matches the American bond durability classification with its equivalent European bond class.
Plywood Grade American Bond Durability Classification Equivalent European Bonding Class to EN 314-2 End use conditions Plywood Specification to EN 636

C-D (CDX)

Exposure 1

2

Clauses 3.1 (dry) & 3.2 (humid)

C-C (CCX)

Exterior

3

Clauses 3.1 (dry), 3.1 (humid) & 3.3 (ext)

A-C (ACX)

Exterior

3

Clauses 3.1 (dry), 3.1 (humid) & 3.3 (ext)

B-C (BCX)

Exterior

3

Clauses 3.1 (dry), 3.1 (humid) & 3.3 (ext)

Sturd-I-Floor (APA)

Exposure 1

2

Clauses 3.1 (dry) & 3.2 (humid)

Sturd-I-Floor (APA)

Exterior

3

Clauses 3.1 (dry), 3.1 (humid) & 3.3 (ext)

Floor Span (TECO)

Exposure 1

2

Clauses 3.1 (dry) & 3.2 (humid)

Floor Span (TECO)

Exterior

3

Clauses 3.1 (dry), 3.1 (humid) & 3.3 (ext)

C-D plugged

Exposure 1

2

Clauses 3.1 (dry) & 3.2 (humid)

C-C plugged

Exterior

3

Clauses 3.1 (dry), 3.1 (humid) & 3.3 (ext)

American Plywood Panel Bond Durability Classification

Exterior

Plywood bonded with a fully waterproof glue for permanent exposure to the weather or conditions of high moisture content. Plywood must be manufactured from a C-grade or better veneer.

Exposure 1

Plywood manufactured with the same fully waterproof glue as used in Exterior plywood, but due to other compositional factors, these panels should only be used in applications where their ability to resist moisture and weather during long construction delays is required prior to them being protected.

 

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