Shrinkage holes show on the surface of tile adhesive

[Johnson]

I bought tile adhesive for home decoration. After stirring, the surface of the slurry became densely packed and began to shrink like defoaming. Has anyone ever encountered this problem? Who knows the reason? I appreciate.

 

[Ankur]

This is the result of internal bubble bursting.

 

[Rony]

First, the sand is coarse; second, the amount of water added is not reached

 

[Scott Kaplan]

The Redispersible Polymer powder and cellulose ether do not match. This will happen with high-grade tile adhesives with a large amount of Redispersible Polymer powder.

 

[Cassie]

1. Cellulose ether causes

2. The problem with thixotropic agent or amylase, you didn’t add in.

3. The sand contains too much powder or too much mud.

 

[Luis]

Does the cellulose ether entrain too much air?

 

[Roy]

I use river sand and don’t have this problem at all.

 

[Shamil]

This is because the tile adhesive contains defoaming agent.