Can Requpol 4515 be used under floating timber floors?

It is recommended that engineered timber floors be adhered to the Regupol 4515. The 4515 Regupol to timber adhesive should be spread over the whole floor with a 2.4 mm V notched trowel. The application of the timber adhesive in S format is unacceptable as this will create voids under the timber to the detriment of the soundproofing objective.