Dry Powder Gypsum Retarder Used for Extending The Set Time of Gypsum Blended Materials

• Type: Set Retarder
• Content: Protein
• Moisture: < 3%
• Bulk Density: 400 -600 G/L
• pH: 7 - 9 (1% Water Solution)
• Transport Package: Waterproof Bag
• Model NO.: SG-HN
• Specification: powder
• Origin: China
• HS Code: 3824409000
• Production Capacity: 5 000 T / Year

Product Description

Dry Powder Gypsum Retarder Used for Extending the Set Time of Gypsum Blended Materials
 

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Product Description

The SH-HN series are protein retarders specially developed and produced. They are applied for all types of natural gypsum or gypsum based materials. When mixed into gypsum-based material, the protein will combine with calcium ions and cover the dihydrate gypsum surface. This will reduce the surface energy of crystal nucleus to restrain its growth. But it will not change the  crystal nucleus morphology to affect the gypsum strength. Large number of experiments show a result that the parameter of gypsum coagulation time and protein retarder using amount is linear. However the curve graph will increase rapidly after a certain dosage by using organic acid and alkaline phosphate retarders. This is the significant advantage of protein retarder which will lead better operation and control in actual use.

Specifications

Model	SG-HN01	SH-HN02	SG-HN03
Type	modified polymeric amino acids	degraded protein	bone glue
Appearance	white or brown powder
Moisture Content	≤ 3%
Bulk Density	400-600 g/L
pH (1% water solution)	7 - 9

How to use
Add to material, mix and stir evenly.
The recommended dosage is 0.03 - 0.2%. Actual dosage should be determined by debugging and testing according to different products and applications.

Packaging and Storage
Packaging in bag. Net weight 25±0.5Kg / bag.
Store in cool and dry circumstance. Avoid moisture.
Shelf life is 12 months.
 

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