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[CCMC 14125-R] CCMC Canadian code compliance evaluation

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Compliance opinion

It is the opinion of the Canadian Construction Materials Centre that the evaluated product, when used as a binder for oriented strandboard (OSB) in accordance with the conditions and limitations stated in this evaluation, complies with the following code:

National Building Code of Canada 2015

ID Code provision Solution type
09-23-15-02-00-0-009.23.15.2. Material StandardsAlternative
09-23-16-02-00-0-009.23.16.2. Material StandardsAlternative
09-23-17-02-00-0-009.23.17.2. Thickness, Rating and Material StandardsAlternative
09-27-10-01-00-0-009.27.10.1. Material StandardAlternative
09-29-09-01-00-0-009.29.9.1. Material StandardAlternative
09-30-02-02-00-0-009.30.2.2. Materials and ThicknessAlternative

The above opinion(s) is/are based on the evaluation by the CCMC of technical evidence provided by the evaluation holder, and is bound by the stated conditions and limitations. For the benefit of the user, a summary of the technical information that forms the basis of this evaluation has been included.

Product information

Product name

MONDUR®541-LIGHT

Product description

The product is a binder that is used for the manufacturing of OSB. It is made from polymeric diisocyanate, monomeric diisocyanate and oligomers.

Manufacturing plant

This evaluation is valid only for products produced at the following plant:

Product nameManufacturing plant
Baytown, TX, US
MONDUR®541-LIGHTProduct evaluated by the CCMC

Product evaluated by the CCMC Indicates that the product from this manufacturing facility has been evaluated by the CCMC

  Conditions and limitations

The CCMC’s compliance opinion is bound by this product being used in accordance with the conditions and limitations set out below.

  • The product may be used for the bonding of strands in the manufacturing of OSB that conforms to CSA O325-07, “Construction Sheathing,” in which the binders are intended to conform to the requirements of CSA O437.2-93, “Evaluation of Binder Systems for OSB and Waferboard,” as referenced in CSA O325, Article 5.2.3A.
  • Each finished OSB panel product that uses MONDUR® 541-LIGHT must conform to CSA O325 and be certified by an accredited certification body.

  Technical information

This evaluation is based on demonstrated conformance with the following criteria:

Evaluation requirements
Criteria number Criteria name
CCMC-TG-060523.08-15CCMC Technical Guide for Binders for Oriented Strandboard (OSB) and Waferboard

The evaluation holder has submitted technical documentation for the CCMC evaluation. Testing was conducted at a laboratory recognized by the CCMC. The technical evidence summarized below is for waferboard panels (i.e., non-oriented wafers) manufactured with the product.

Material requirements

Physical properties

Table 1. Results of testing the physical properties of the OSB bound with product
Property Unit Requirement Result
Average Individual Average Individual
Modulus of rupture (MOR) after preconditioning MPa ≥ 17.2 ≥ 13.8 40.6 27.9
Modulus of elasticity (MOE) after preconditioning MPa ≥ 3 100 ≥ 2 480 5 076 4 107
Internal bond after preconditioning MPa ≥ 0.345 ≥ 0.276 0.877 0.729
Bond durability (MOR) after 2-h boil (tested when wet) MPa ≥ 8.6 ≥ 6.9 21.9 16.1
Bond durability (MOR) after 6 cycles MPa ≥ 8.6 ≥ 6.9 33.7 27.7
Thickness swell after 24-h soak % ≤ 25 ≤ 30 6.0 6.9
Linear expansion oven-dry to saturated % ≤ 0.40 ≤ 0.48 0.22 0.28
Linear expansion at 50% to 90% relative humidity (RH) % ≤ 0.20 ≤ 0.24 0.10 0.13
Prescriptive requirements

Creep properties at 20°C

Table 2. Results of testing the creep properties of the OSB bound with product at 20°C
Property Unit Requirement Result
Average Individual Average Individual
Cumulative creep mm ≤ 1.7 ≤ 2.04 1.14 1.47
Secondary creep mm ≤ 0.4 ≤ 0.48 0.20 0.24
Irrecoverable creep mm ≤ 1.1 ≤ 1.32 0.66 0.82

Creep properties at 30°C

Table 3. Results of testing the creep properties of the OSB bound with product at 30°C
Property Unit Requirement Result
Average Individual Average Individual
Cumulative creep mm ≤ 2.2 ≤ 2.64 1.31   1.52
Secondary creep mm ≤ 0.4 ≤ 0.48 0.16     0.19
Irrecoverable creep mm ≤ 1.5 ≤ 1.8 0.80    0.93

Creep properties increased at higher ambient temperature (from 20°C to 30°C)

Table 4. Results of testing the creep properties of the OSB bound with product
Property Unit Requirement Result
Average Individual Average Individual
Cumulative creep mm ≤ 35 ≤ 42 15      3
Secondary creep mm ≤ 0 ≤ 0 –21  –21
Irrecoverable creep mm ≤ 50 ≤ 60 22    13
Performance requirements

Retention of properties - modulus of rupture (MOR)

Table 5. Results of testing the MOR of the OSB bound with product
Property Unit Requirement Result
Average Individual Average Individual
Exposure after 2-h boil (modified) MPa ≥ 8.6 ≥ 6.9 43.3 35.7
Exposure after 6 cycles MPa ≥ 8.6 ≥ 6.9 33.7 27.7
Exposure at –20°C MPa ≥ 17.2 ≥ 13.8 48.4 38.8
After fungal exposure to Aspergillus niger v. Teigh MPa ≥ 13.8 ≥ 11.0 29.5 23.8
After fungal exposure to Penicillium luteum MPa ≥ 13.8 ≥ 11.0 31.1 18.1
After soaking in 1% hydrochloric acid MPa ≥ 7.7 ≥ 6.2 27.9 20.4
After soaking in 1% sodium hydroxide MPa ≥ 12.0 ≥ 9.6 35.9 27.5
After soaking in water MPa ≥ 14.6 ≥ 11.7 38.5 27.3

Retention of properties - modulus of elasticity (MOE)

Table 6. Results of testing the MOE of the OSB bound with product
Property Unit Requirement Result
Average Individual Average Individual
Exposure after 2-h boil (modified) MPa ≥ 1 550 ≥ 1 240 5 315 4 735
after 6 cycles MPa ≥ 2 015 ≥ 1 612 4 766 4 111
at –20°C MPa ≥ 3 100 ≥ 2 480 5 890 4 588
After fungal exposure to Aspergillus niger v. Teigh MPa ≥ 2 480 ≥ 1 984 4 386 3 101
Penicillium luteum MPa ≥ 2 480 ≥ 1 984 4 530 3 241
After soaking in 1% hydrochloric acid MPa ≥ 2 480 ≥ 1 984 4 862 3 447
1% sodium hydroxide MPa ≥ 2 325 ≥ 1 860 5 021 4 071
water MPa ≥ 2 790 ≥ 2 232 5 348 4 527

Retention of properties - internal bond

There is no individual result for the internal bond property given that the residual property requirements apply to the average of three test specimens for each test board.

Table 7. Results of testing the internal bond of the OSB bound with product
Property Unit Requirement Result
Average Individual Average Individual
Exposure after 2-h boil (modified) MPa ≥ 0.104 N/A 0.511 N/A
Exposure after 6 cycles MPa ≥ 0.035 N/A 0.281 N/A
Exposure at –20°C MPa ≥ 0.345 N/A 0.784 N/A
After fungal exposure to Aspergillus niger v. Teigh MPa ≥ 0.207 N/A 0.617 N/A
After fungal exposure to Penicillium luteum MPa ≥ 0.207 N/A 0.631 N/A
After soaking in 1% hydrochloric acid MPa ≥ 0.069 N/A 0.410 N/A
After soaking in 1% sodium hydroxide MPa ≥ 0.155 N/A 0.417 N/A
After soaking in water MPa ≥ 0.224 N/A 0.541 N/A

Administrative information

Use of Canadian Construction Materials Centre (CCMC) assessments

This assessment must be read in the context of the entire CCMC Registry of Product Assessments, any applicable building code or by-law requirements, and/or any other regulatory requirements (for example, the Canada Consumer Product Safety Act, the Canadian Environmental Protection Act, etc.).

It is the responsibility of the user to confirm that the assessment they are using is current and has not been withdrawn or superseded by a later version on the CCMC Registry of Product Assessments.

Disclaimer

The National Research Council of Canada (NRC) has evaluated only the characteristics of the specific product described herein. The information and opinions in this evaluation are directed to those who have the appropriate degree of experience to use and apply its contents (such as authorities having jurisdiction, design professionals and specifiers). This evaluation is valid when the product is used as part of permitted construction, respecting all conditions and limitations stated in the evaluation, and in accordance with applicable building codes and by-laws.

This evaluation is provided without representation, warranty or guarantee of any kind, expressed or implied, and the NRC provides no endorsement for any evaluated product. The NRC accepts no responsibility whatsoever arising in any way from any and all use of or reliance on the information contained herein or the use of any evaluated product. The NRC is not undertaking to render professional or other services on behalf of any person or entity nor to perform any duty owed by any person or entity to another person or entity.

Language

Une version française de ce document est disponible.
In the case of any discrepancy between the English and French version of this document, the English version shall prevail.

Copyright

© His Majesty the King in Right of Canada, as represented by the National Research Council of Canada, 2024

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior written permission of the CCMC.

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From: National Research Council Canada

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