জিপসাম রিটার্ডার

The recommended dosage depends on the gypsum type, formulation and target setting time.

Before adding it into your formulation. A laboratory trial is necessary for appropriate dosage, because gypsum source, other additives, water demand and application conditions may also affect the required dosage.

Our technical team can provide a starting-point recommendation based on your application and formulation requirements.

The setting time extension depends on the retarder grade and dosage, as well as the gypsum formulation and production conditions.

We recommend you do laboratory testing before you determine the final grade and dosage for your target working and setting time. If you can’t make the decision still,   you can provide your current setting time and target setting time to our technical expert, so that we can offer more relevant technical support.

The effect on the final properties depends on the complete formulation and retarder dosage.

An appropriate retarder dosage will provide sufficient working time, and offers the required setting behavior and final performance of the gypsum-based product. For formulations with specific strength, hardness or production requirements, laboratory testing is recommended to optimize the dosage.

Yes. Gypsum retarder can be used together with cellulose ethers and other functional additives in gypsum-based formulations. Different additives perform different functions.

Several factors can affect the retarding performance in a gypsum-based formulation, including:

• Type and source of gypsum
• Retarder dosage
• Other additives in the formulation
• Water-to-gypsum ratio
• তাপমাত্রা এবং আর্দ্রতা
• মিশ্রণের শর্তাবলী

For consistent performance, the retarder should be evaluated under conditions close to the actual production and application process.