How to adhere cork panels to the subfloor
Amorim/Acousticork recommends thinset or other type I organic adhesive.
Please note this is not our supplier's suggested method, and we only offer it as a suggestion. We recommend thinset. Here is a blurb from Corkdirect.com about adhering cork to floor:
"Pull the loosely laid material back at least half its length. Using a 3/32” x 3/32” x 3/32” v-notch trowel, apply CorkDirect Fortane Urethane underlayment adhesive at a spread rate of 100 square feet per gallon. Gently return the pulled back material and roll in both directions with a 100 lb. roller."
Urethane adhesive is the suggestion of: corkdirect.com