07 Jan
In the competitive world of construction materials, the difference between a high-premium gypsum brand and a low-quality one often comes down to a single additive: the Retarder.
Many manufacturers struggle with a common dilemma: they need to extend the working time of their plaster or self-leveling gypsum, but the more retarder they add, the weaker the final product becomes. If you are facing issues with surface cracking, chalking, or low compressive strength, it’s time to look at the chemistry of Amino Acid-based solutions.

For decades, citric acid was the industry standard. However, it creates a "brittle" crystal structure. At Yuanlian Chemical, we’ve analyzed thousands of gypsum samples and found that traditional organic acids can destroy the interlocking needle-like crystals that give gypsum its strength.
The result? A product that stays wet long enough to work with, but fails to meet safety standards once dry.
Our Amino Acid Gypsum Retarder offers a "smart" retardation process. Instead of interfering with the overall chemistry, it selectively slows down the hydration of hemihydrate gypsum.
Reduced R&D Costs: Our retarder works predictably across different batches of desulfurized or natural gypsum.
Superior Surface Quality: By allowing uniform crystal growth, it eliminates the micro-cracks that lead to customer complaints.
Premium Positioning: Products made with amino acid retarders have higher hardness and better impact resistance, allowing you to charge a premium in the market.
| Feature | Yuanlian Amino Acid Retarder | Traditional Retarders |
| Strength Retention | >95% | 70% - 80% |
| Dosage | 0.1% - 0.25% | 0.2% - 0.5% |
| Crystal Shape | Compact, needle-like | Short, fragmented |
| Eco-Friendly | Fully Biodegradable | Varies |
At Yuanlian Chemical, we don't just sell chemicals; we provide structural solutions. We understand that every source of gypsum—whether it’s FGD gypsum or natural rock—reacts differently. Our technical team is available to help you calibrate the perfect dosage for your specific climate and material grade.
Join hundreds of global manufacturers who have optimized their production lines with our high-purity additives.
Get in Touch for Free Samples:
Official Website: www.yuanlianchem.com
Global Sales Hotline: +8613345172159