J
Just Rizzle
what I tend to do is add a additive to the mix this makes the addy more creamy and more sticky so I know its going to do what I want it to.Adhesive mixed with a little mire water.
You need to choose the right adhesive for the substrate and tile being used.
Never add more water than is recommend on the bags mixing instructions, this is different from manufacturer to manufacturer and will void any guarantee and weaken the adhesive .