适用于混凝土和干混砂浆的高性能聚羧酸类高效减水剂解决方案，具有显著的减水效果和优异的和易性。.
25–40% 节水*
0.1–0.5% 典型剂量*
2–6小时 坍落度保持*
MIKUR is a professional manufacturer of gypsum retarders, with a long-standing focus on the R&D, production, and application of retarders for gypsum-based materials. We have extensive experience in formulation compatibility and practical application.
MIKUR gypsum retarder is a modified amino-acid-based product developed for different gypsum raw materials and application requirements. It offers good stability, dispersion, and formulation compatibility, helping adjust the setting time of gypsum-based materials while maintaining good workability and hardened-product performance.
Supported by dedicated production facilities and R&D and technical service teams, MIKUR gypsum retarder has been applied in a wide range of gypsum-based products and exported to markets in Southeast Asia, Africa, Europe, and other regions. Based on gypsum raw materials, formulation systems, application methods, and target setting times, we can provide product selection and formulation adjustment support.
In addition to gypsum retarders, MIKUR also supplies a range of construction material additives and can provide formulation compatibility assessment, application testing, and technical support based on customers’ production processes and raw materials.
| 模型 | Appearance | Moisture Content | Dispersibility | 建议剂量 | 包装 | 应用 |
|---|---|---|---|---|---|---|
| PR101 | Brown powder | ≤4% | Good | Reference dosage: 0.02%–0.2% of the gypsum weight; the actual dosage should be determined through trials based on the gypsum type, formulation, and target setting time.。 | 25 kg/bag; 40 bags/pallet; customized packaging is available upon request. | Gypsum plaster, gypsum adhesive, gypsum putty, gypsum-based self-leveling compounds, decorative gypsum moldings, precast gypsum components, gypsum joint fillers, molding plaster, and more. |
PR101 gypsum retarder is designed to adjust setting time at a low dosage. The dosage can be adjusted according to the gypsum raw material, formulation system, and application requirements. This gypsum retarder additive is used to regulate the setting time and workable time of gypsum slurry, helping manufacturers mitigate construction and forming related pressure caused by premature setting.
With an appropriate addition of gypsum retarder, rapid thickening can be slowed, allowing the gypsum slurry to maintain a more suitable application window. In machine-sprayed gypsum, it can help improve pumping and spraying; in hand-applied plaster, gypsum putty, and decorative gypsum moldings, it provides more time for application, shaping, and mold filling, while helping improve the finished surface quality.
MIKUR gypsum retarder primarily acts during the early hydration stage of gypsum. Under appropriate dosage and formulation conditions, it can extend the working time while minimizing its impact on subsequent crystallization and hardening, helping balance the compressive strength, flexural strength, and structural stability of gypsum products.
MIKUR gypsum setting retarder is applicable to different types of gypsum based systems and is compatible with common dry mix mortar additives and fillers. For raw materials such as β hemihydrate building gypsum, α hemihydrate high strength gypsum, desulfurized gypsum and phosphogypsum, it is recommended to conduct compatibility and setting time tests based on specific formulations to determine the appropriate product model and dosage.
As a manufacturer of building waterproofing chemicals, MIKUR provides global partners with consistent product quality, water-resistant performance, localized technical support, and product solutions tailored to project requirements.
MIKUR has been specializing in gypsum set retarders and construction material additives for many years. Backed by an R&D and technical team comprising industry experts, PhDs, and senior engineers, MIKUR provides comprehensive support for product development and application, covering gypsum raw materials, formulation optimization, and construction processes.
MIKUR has established an enterprise technology center, engineering laboratory, and academic research workstation, equipped with relevant testing and laboratory facilities. These resources support the R&D, performance evaluation, and application testing of gypsum plaster retarders, enabling systematic product development and technical validation.
MIKUR operates dedicated production facilities for gypsum plaster retardant, featuring automated manufacturing and process control systems. From raw material proportioning and synthesis to finished-product testing, key production stages are closely monitored to ensure consistent product quality and batch-to-batch stability.
As a professional manufacturer of gypsum setting retarder, MIKUR serves customers across the gypsum building materials, dry-mix mortar, and related industrial sectors. Based on specific customer requirements, MIKUR can provide product samples, technical documentation, and application testing support to facilitate product evaluation and application development.
The primary function of gypsum retarder is to regulate the hydration and setting of gypsum, extending the workable time of gypsum slurry and reducing the impact of premature setting during application or forming. By adjusting the dosage, it can be adapted to different gypsum raw materials, ambient temperatures, application methods, and production processes. Common applications include the following six categories.
Gypsum plaster is used for wall rendering and requires an appropriate working time whether applied by machine spraying or manually. An appropriate addition of plaster retardant can extend the workable time of the slurry, helping applicators better control the pace of spraying, leveling, and finishing.
In gypsum adhesive, a gypsum retardant can adjust the setting time, providing a more adequate working window for mixing, application, and adjustment, while helping improve workability. The actual dosage should be determined through trials based on the gypsum raw material and target setting time.
For wall application, joint filling, and sanding, a gypsum retarder can extend the workable time, making the application process easier to control and helping improve application, leveling, and finishing results.
Gypsum-based self-leveling compounds require mixing, pumping, spreading, and leveling to be completed within a defined period. A gypsum retarder can be used to adjust the setting time and provide a more suitable application window for flow, leveling, and finishing.
In the production of gypsum boards, decorative moldings, and precast gypsum components, a gypsum retarder can regulate the setting process of the slurry, providing more practical working time for mold pouring, filling, trimming, shaping, and demolding, helping maintain consistent forming quality.
In applicable gypsum-based fire-resistant coating systems, a gypsum retarder can be used to adjust the material’s setting time and make application easier to control. The formulation should be validated according to the product system and application requirements.
A large gypsum products manufacturer in Shandong, China, was engaged in large-scale production of precast gypsum components and sought to stabilize its forming process, reduce the reject rate, and improve finished-product appearance. Project testing showed that, after adopting MIKUR gypsum retarder, the setting time of the gypsum slurry could be controlled and adjusted. Without reducing the later-stage strength of gypsum products or significantly affecting hardening speed, the factory reduced its product reject rate by more than 35% and achieved average annual savings of over USD 1 million in overall production costs.
MIKUR-exported gypsum retarder was used at a large fully finished residential development in India for machine-sprayed gypsum and manual gypsum plastering of interior walls. Project records indicated that the use of MIKUR gypsum retarder significantly extended the workable time of the plaster, improved application efficiency by approximately 30%, and generated cumulative savings of more than USD 800,000 in material waste and labor costs for repairs.
A gypsum retarder additive is primarily used to adjust the setting time of gypsum-based mortar and gypsum slurry and slow the early hydration process, thereby extending the workable time for application or forming. Proper use can also help improve slurry workability. Actual performance depends on the gypsum raw material, formulation, temperature, and dosage.
The primary function of a gypsum retarder is to regulate early hydration and setting. At an appropriate dosage, it can extend the application time while minimizing its impact on subsequent crystallization, hardening, and strength. Results may vary with different gypsum raw materials and formulations, so validation through standard tests and the actual formulation is recommended.
MIKUR gypsum retarder can be used with a variety of gypsum raw materials, including β-type building gypsum, α-type high-strength gypsum, desulfurized gypsum, and phosphogypsum. Because hydration characteristics vary among raw materials, the dosage should not be determined solely by the gypsum type; formulation-specific trials are recommended.
An excessively low dosage may provide insufficient retarding effect, leaving the setting time too short; an excessive dosage may cause over-retardation, a longer final setting time, and slower drying or hardening. Therefore, the appropriate dosage should be determined through laboratory trials based on the target setting time and then validated in production.
High temperatures accelerate gypsum hydration, causing the slurry to thicken more quickly. The workable time can be extended by adjusting the gypsum retarder dosage, optimizing the formulation, and controlling the application environment. For machine-sprayed gypsum and large-area applications, trials should be conducted with consideration of site temperature, gypsum raw materials, and application pace.
Yes. A gypsum retarder can be used to adjust the setting time of machine-sprayed gypsum systems, providing a more suitable working window for mixing, pumping, spraying, and finishing. Actual use should also be tested with consideration of the pumping equipment, gypsum raw materials, formulation, and application temperature.
It can be used in the production of related precast gypsum components and decorative gypsum moldings. Proper adjustment of the setting time can provide more working time for mold pouring, filling, trimming, and shaping, helping reduce chipped edges, air voids, and surface defects caused by premature setting.
A gypsum retarder itself is primarily used to regulate setting time. Wall cracking, efflorescence, and similar issues are also related to factors such as gypsum raw materials, formulation, substrate conditions, application, and curing, so they cannot be attributed to the retarder alone. Using an appropriate dosage and completing formulation validation can help reduce the risk of surface defects caused by excessively rapid setting or an insufficient working window.
For projects that require a silicone water repellent or a water repellent for mortar, product selection and dosage should be matched to the substrate, formulation, and required performance. MIKUR can provide product samples, dosage guidance, and formulation support for application testing.
This product is a powder additive. Store it sealed in a cool, dry, and well-ventilated place, avoiding moisture, water ingress, and high-temperature storage. Under normal storage conditions, the shelf life is 12 months; the product packaging and batch-specific technical documentation shall prevail.
For projects that require a silicone water repellent or a water repellent for mortar, product selection and dosage should be matched to the substrate, formulation, and required performance. MIKUR can provide product samples, dosage guidance, and formulation support for application testing.
Common factors include fluctuations in gypsum raw materials, changes in ambient temperature, additive compatibility, water dosage, and retarder dosage. When setting time is unstable, the issue should be investigated from three aspects: raw material testing, formulation control, and retarder trials. Based on the customer’s gypsum raw materials and target setting time, MIKUR can provide product selection and application testing support.
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