http://www.bostik-us.com/Files/TDSFiles/BostiksBest.pdfBest is "moisture cure polyurethane" adhesive and I think BST is "urethane" adhesive,I only use Best or Ultra for easy spreading,once I used BST and did not like it.
A while back, I had 2800 sf of flooring in a new house. Woven strand solid bamboo, over Warmboard radiant heat system.http://www.bostik-us.com/Files/TDSFiles/BostiksBest.pdf
What happened when you used the BST, why did you not like it?
I'm tossing between the idea of using either method...
MVP with BEST
Not sure what to do because it's a new type strand floor and we're guinea pig installers for this application over radiant heated floors, where we can't put down subfloor because we can't add too much height.
I have started using Best when I did the GAP stores in Canada in 1990's. Installed and serviced these 40+stores for any flooring problems over 10 years.Half of these stores (each ave.4000 sq.ft) was installed with ULTRA and half with BEST.As you can imagine we needed to be quick to get the job done and two guys just spreading glue non-stop.Ultra and Best allowed us going fast.
I look for end results:specially when I have to replace the part of the flooring due damage.The floor boards with Best holds much much better than BST or 811.A junk of slab usually comes with it.(same with ULTRA-if you do not mind paying some more).I can remove floors with BST much easier.
"holds the trowel ridges better" it does not make it better.
"BEST slumps to a pancake" does not make any worse, actually it is very difficult to pull it off the floor during installation if you want to remove the board.it just sucks the board into slab:laughing:
Do not forget tpo roll the floors with 150 lbs roller after couple of hours,not a must but I do it anyway.