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  1. Rony

    The mortar quickly falls off after being applied to the wall, and it takes a long time to harden.

    You add too much retarder in your additives, you should reduce the amount, and control the setting time between 24-48h
  2. Rony

    Plastering mortar wall bubbling, what is wrong?

    This usually happens later phase. You are using tailing sand, right? The underlying mortar must have burst out.
  3. Rony

    Mortar admixtures have poor plasticity, which causes mortar hardly maintains its optimum state. Who can give me some directions about this?

    The additives for wet mixing need to add some carboxylic acid, cellulose ether, air-entraining agent, retarder, and sodium gluconate with white sugar is the best. That’s about all I know.
  4. Rony

    Why does ordinary plaster mortar crack?

    The sand is too fine so it cracks when applying too thick. Coarser sand will be fine.
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