2017-10-13 admin HomeBoating Guide Introduction to Foam Core Boatbuilding Introduction to Foam Core Boatbuilding - 4 days ago - in Boating Guide 4 0 For this demonstration we used 5.5 lbs/ cu. ft Airex foam but any brand of closed-cell structural foam compatible with epoxy will work. The foam can be found at … source Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Google+ (Opens in new window) Related Leave a Reply Cancel Reply Your email address will not be published. Required fields are marked * CAPTCHA Code * Notify me of follow-up comments by email. Notify me of new posts by email.