Have the Bona R850 used for bonding prefinished Haro on screed. The adhesive is easy to apply with a notched trowel and should be processed quickly. I have been doing always processed 3 rows. Here, the parquet can without having to continuously hit the glue spread good embarrassed unintentionally. Should a little glue on and do not end up under the floor, you can remove it with a good Zewa. The adhesive bonds to approximately 30 min. The bucket should be so always closed. In buckets of adhesive is covered with plastic. If it is stored overnight after dawn without this plastic for example, the adhesive also binds in a closed bucket in the air which is in the bucket further.
The adhesive is under the parquet firmly but elastically. We have laid the parquet end and everything is fine the way it should. For about 45 square meters I have a 4 pail 15kg needed. Is not cheap but worth it in any case, compared to floating installation. Absolute peace while walking and weight.