Calcium formate is a highly flowable white crystalline substance commonly used as a setting accelerator in mortars. In dry mix mortar products,such as thermal insulation mortar, cement-based plaster, tile adhesives, and repair mortars, it is common to use high-alumina cement and gypsum as setting accelerators to enhance early strength. Additionally, in situations where temperature is low, antifreeze agents are often added. Calcium formate, as a new type of coagulant, serves a dual purpose – as an accelerator. It expedites the cement’s curing process, boosts early strength, and prevents slow setting during winter construction or in low-temperature, low-humidity conditions. This enables the mortar to be put into use as early  as possible, particularly beneficial for achieving early strength.
Grade & Specification
| Item | Index |
| Purity (as Ca(HCOO)2) % |  ≥ 98.0 |
| Appearance | White Powder |
| Content of Calcium (%) | ≥30.0 |
| Heavy Metals（as Pb,%) | ≤ 0.0002 |
| Arsenic（As,%) | ≤ 0.0001 |
| Non-Soluble (%) | ≤ 1.0 |
| Dry Loss (%) | ≤ 0.5 |
| PH Value of 10% Solution | 6.0~8.0 |
Application
Calcium formate can be used in dry mortar, concrete, and tile adhesives by accelerating the formation of tricalcium silicate aluminate, influencing setting and hardening times. Its addition is desirable for work at low temperature and for inhibition of corrosion of metal substrates within cement/grout. It is also effective in the prevention of efflorescence. In drywall (gypsum board), calcium formate can function as a fire retardant.
Packing
Products in granular or powdery form shall be packed with knit bags made of polypropylene and colorless medium density polythene film with net weight of 25.0kg.
Storage
it shall be stored indoor in a well ventilated and dry room, Prevent exposure to dampness, sunlight and rain.
Transportation
During transportation, the products shall be moved gently to prevent damaging the packing bags. Avoid direct contact with Naked flame, when fire happens, any fire fighting equipment may be use to extinguish the fire.