Gypsum self-leveling formula

Gypsum self-leveling formula

Here is a general formula for making a gypsum-based self-leveling compound:

Ingredients:

The following formula is a Chinese formula. I don’t know if it is adapted to the local market

1000 kg of gypsum self -flow flat formula

  • Gypsum powder 800 kg
  • Polit 425 Cement 80 KG
  • HPMC 1KG
  • Stone powder 120 kg
  • P49 (water reducing agent) 4kg
  • 1kg of foam agent
  • Stabilizer 0.7 kg
  • Slow coagulant 1.8 kg

385 water with water
Liquidity 145
After half an hour, the flow becomes 125

Instructions:

  1. In a mixing container, add the required amount of gypsum powder according to the desired thickness and coverage area.
  2. Slowly add water to the powder while mixing continuously until a homogeneous mixture is obtained. The ratio of water to gypsum powder varies depending on the manufacturer’s instructions, but typically ranges from 0.2 to 0.4 liters of water per 1 kg of powder.
  3. If desired, add a polymer additive to the mixture and continue mixing until thoroughly combined. The polymer additive can improve the flow and leveling properties of the self-leveling compound.
  4. Allow the mixture to rest for a few minutes to remove any air bubbles and then remix briefly.
  5. Apply the self-leveling compound to the prepared surface using a trowel or a roller. Spread the mixture evenly to achieve the desired thickness and level.
  6. Allow the self-leveling compound to dry completely, which typically takes between 24 to 72 hours depending on the thickness and environmental conditions.
  7. Sand the surface lightly to remove any high spots or imperfections, and then apply a primer before installing the final floor covering.

It’s important to note that the specific formulation and application method may vary depending on the manufacturer’s instructions and the specific project requirements. Therefore, it’s recommended to follow the manufacturer’s guidelines for optimal results.

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