Gesso Retarder for Early Strength and High Strength Leveling Grouting Material

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Product Description

Basic Specifications

Product Name
Protein Retarder
Water Content
Max. 3%
Purity
99%
Usage
Coating Auxiliary Agents
Physical Form
White Powder
pH Value
10-11
Certification
ISO
Type
Gypsum Retarder
Production Capacity
5000 Metric Tons Per Year
Transport Package
25kg/Bag

Product Description

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YB-8850 is a new type of protein-based high-efficiency gypsum retarder. It provides a superior retarding effect with a significantly smaller dosage, allowing customers to adjust the setting time of gypsum products freely according to various needs.

This agent ensures that gypsum and plaster products maintain high strength with minimal loss after hardening. As a white powder with excellent fluidity, it disperses easily into gypsum via spiral mixing or grinding.

Technical Data

Item Specification
Appearance White powder
Water Content (%) < 3%
pH Value (20ºC, 20% Liquid) 10 - 11
Dosage Recommendation (%) 0.05% ~ 0.1% (Based on binder weight for ~1h setting time)

Application Range

  • Super performance for calcined gypsum or desulphurization gypsum.
  • Wall plaster and plaster adhesives.
  • Plaster precast and gypsum fillers.
  • Gypsum mode and decorating coatings.
  • Self-leveling grouting materials.

Packing & Storage

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Packaging: 25kg kraft bags with inner PE film or HDPE bags.

Loading Capacity: 12 Tons with pallets / 14 Tons without pallets per 20GP container.

Storage: Store in dry, cool conditions below 30°C. Protect against humidity and pressure. Shelf life is 12 months under proper conditions.

Production & Quality Control

Our facility operates under the ISO9001-2000 international quality system. We maintain a strict inspection system to ensure every batch meets national standards. Products are also tested by independent institutions like SGS to ensure customer satisfaction and consistent performance.

Frequently Asked Questions

What is the primary function of the Protein Retarder YB-8850?
It is specifically designed to adjust and prolong the setting time of gypsum products such as wall plasters, adhesives, and precast elements without causing significant strength loss.
How much retarder should I use in my gypsum mix?
The recommended dosage is between 0.05% and 0.1% based on the total weight of the binder. However, testing is recommended as different gypsum sources may react differently.
Does this product affect the final strength of the gypsum?
No, one of the key advantages of YB-8850 is that it maintains the structural integrity and strength of the gypsum after hardening, unlike some traditional retarders.
What is the shelf life and storage requirement?
The product should be stored in a dry, cool place below 30°C. When kept protected from humidity and pressure, it has a shelf life of up to 12 months.
What shipping documents are typically provided?
Standard documentation includes a Commercial Invoice, Packing List, Bill of Lading, COA (Certificate of Analysis), and Certificate of Origin.
Can I request a sample for testing?
Yes, we provide samples for quality evaluation. Please provide your delivery details to arrange the sample shipment.

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