Further information on the subject is provided below. The APA was also kind enough to provide me with Report 132 - Plywood in Hostile Environments for which I do not see any copyright notice and would thus be willing to share.
Michel
Please review the attached document which provides information regarding plywood exposed to extreme temperatures. If your fluid temperatures are below 180 degrees F, there should be no issues.
Regards,
Ray Clark
Product Support Specialist
Wood Products Support Help Desk
APA
Southern Forest Products Association
Structural Insulated Panel Association
253-620-7400 (phone)
253-565-7265 (fax)
ray.clark@apawood.org
www.APAwood.org
www.SouthernPine.com
www.SIPS.org