[CCMC evaluation requirements] CSA O112.9-04

From: National Research Council Canada

This document provides a summary of the minimum requirements imposed by the Canadian Construction Materials Centre (CCMC) for all evaluations based on the below criteria document. Additional requirements may be imposed by the CCMC when necessary for a particular evaluation, and are detailed in the individual evaluation.

Criteria document

Scope

These evaluations apply to all structural wood adhesives. The prescriptive standards cover phenol and phenol-resorcinol resin adhesives (high-temperature curing), and resorcinol and phenol-resorcinol resin adhesives (room- and intermediate-temperature curing). The performance-based standard covers “exterior exposure” and “limited moisture exposure” adhesives.

Exterior exposure adhesives are used primarily to bond solid wood to solid wood material in structural wood products such as in laminated lumber, edge-glued lumber, and finger-joined lumber designed for wet or exterior service conditions. Adhesives for exterior use include those subjected to repeated wetting and drying and continuous use under high humidity, but do not include those used in below-ground, ground-contact, and marine uses. This standard is not restricted to a specific type of adhesive.

Material requirements

The evaluation holder must demonstrate that the product meets the following requirements (additional requirements may be imposed by the CCMC when necessary, and are detailed in the individual evaluation):

Performance requirements for physical properties of adhesives for structural wood products (Exterior exposure)
Property Unit Requirement
Anti-fungal properties Footnote (1) No indication of the presence of fungal growth
pH of cured adhesive film 3.0 ≤ pH ≤ 11.0

Creep resistance
A, B 1 , and C tests from CSA O112.9

mm ≤ 0.05 for any specimen
mm ≤ 0.25 maximum average

Creep resistance
B 2 test from CSA O112.9

mm ≤ 0.6 for any specimen
mm ≤ 2.9 maximum average
Performance requirements for block shear strength Footnote (1) of adhesives for structural wood products (Exterior exposure)
Property Unit Hardwood  Requirement Softwood Requirement
Dry MPa ≥ 19 ≥ 10
After vacuum-pressure MPa ≥ 11 ≥ 5.6
After boil-dry-freeze MPa ≥ 6.9 ≥ 3.5
Performance requirements for physical properties of adhesives for structural wood products (Exterior exposure)
Property Unit Hardwood Footnote (1)  Requirement Softwood Footnote (1) Requirement
_ Lower quartile Median Lower quartile Median
Percent wood failure (dry) % 15 60 75 85
Percent wood failure (wet) % 55 80 75 85
Delamination resistance % Hardwood ≤ 1.6 Softwood ≤ 1

Labelling

The standards require that each container bear a label or marking with the following information:

  • manufacturer’s name and lot number;
  • product name;
  • quantity in the container;
  • expiry date after which the material should not be used when stored according to the manufacturer’s instructions; and
  • brief instructions as to the storage and care of the material prior to use.

Associated CCMC number

© CSA Group. This information is excerpted from the referenced standard published by CSA Group. The full version of the standard should be referenced, and can be obtained from CSA Group.

Installation requirements

The CCMC requires that evaluation holders provide instructions for the installation of the product(s) that:

Manufacturing requirements

The CCMC requires that evaluation holders, at a minimum, demonstrate that the associated production process:

Labelling requirements

The CCMC requires that evaluation holders ensure that product labels:

Published CCMC evaluations

The following products have been evaluated to these requirements by the CCMC:

CCMC number:Manufacturer:Product names:
13252-LHexion Inc. Cascomel® 4720, Wonderbond® 5025

Code references

National Building Code of Canada 2015

Code references Code provision
Table 9.10.3.1.-B+++ Fire and sound resistance of floors, cieling and roofs
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