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The application of amino acid gypsum retarder

The application of amino acid gypsum retarder

2026-02-04

Amino acid gypsum retarder, with its precise retarding, low dosage and high efficiency, environmental friendliness and harmlessness, and minimal negative impact on gypsum strength, is widely applied in multiple fields. The specific scenarios are as follows:
Production of gypsum components for architectural decoration
Decorative components such as gypsum lines, Roman Columns, and reliefs are mostly complex and irregular structures. During production, a relatively long slurry operation time is required to ensure full mold filling and clear details. Amino acid retarders can extend the initial setting time of gypsum by 1 to 4 hours which is suitable for manual pouring or mechanical batch molding processes. At the same time, it avoids the powdering and alkali efflorescence of components in the later stage due to the residue of retarders, and improves the appearance texture and durability of decorative components.
2. Gypsum-based prefabricated components
This retarder is applied in the production of paper-faced gypsum boards, gypsum blocks, GRG high-strength decorative components and gypsum lines. It can coordinate the flow performance and setting time of the slurry, and solve the problems of delamination and hollowing during the forming of large-sized boards. Precisely control the setting rate to ensure the integrity of mold forming and demolding efficiency, and improve the dimensional accuracy and mechanical properties of components. Its excellent compatibility with raw materials facilitates the resource utilization of industrial by-product gypsum, which meets the development requirements of green building materials.
3. Building gypsum mortar system
When used in plastering gypsum, machine-sprayed gypsum mortar, bonding gypsum, jointing gypsum and other mortar products, amino acid retarders can extend the construction operation time, avoid problems such as construction difficulties and hollowing and cracking of the plastering layer caused by rapid setting, and their biodegradability will not cause harm to the construction environment and human health, meeting the environmental protection standards for interior decoration.
4. Gypsum base surface material
When added to gypsum-based self-leveling mortar, it balances the flow performance and the setting and hardening time to ensure that the mortar does not cure prematurely during large-scale spreading, forming a smooth and dense ground base.
5. Special gypsum products processing technology products field:
It is used for gypsum dolls, artistic sculptures, and handcrafted gypsum handicrafts, extending the manual shaping time and enhancing the surface smoothness and detail restoration of the products.
In the field of industrial casting: As an additive for gypsum in precision casting molds, it ensures the operation window period before mold pouring and guarantees the dimensional stability of the mold.
In the medical field: It is used for orthopedic fixation plaster and dental model plaster, precisely controlling the setting time to meet clinical operation requirements, and must also comply with medical environmental protection standards.
In the production of special products such as refractory gypsum molds and sound-absorbing gypsum boards, this retarder can precisely control the hydration reaction rate, ensuring the uniformity of the pore structure and functional stability of the products, while also taking into account the later strength development, so that the products can meet the special performance requirements such as fire resistance and sound absorption.
In summary, the core application of gypsum retarders lies in "buying time". They may be used in any situation where it is necessary to extend the plasticity period, operation period or processing period of gypsum. It plays an indispensable role in the standardized construction of modern chemical building materials and the production of complex products.