The basic system
Most ice pack fills consist of water, super absorbent polymer and a small amount of thickener. Water provides the cooling mass, the polymer locks it into a gel, and the thickener tunes viscosity and reduces liquid separation after cycling.
What the thickener does
A modest thickener level improves dispersion of the polymer, reduces settling during filling and lowers syneresis after freezing. Too much makes the mix heavy to pump and slow to fill, so increase it gradually and test each level.
Water quality matters
Hard or mineral-rich water lowers absorption substantially. Design the formulation using the water you will actually run in production, and consider a salt-tolerant grade if conductivity is high.
From beaker to production
Laboratory mixing does not reproduce plant shear. Validate addition order, mixing time and maturation period on the real filling line, then write the parameters into a work instruction so batches stay consistent.
About FLORPOLY: FLORPOLY supplies ice-pack grade super absorbent polymer in freeze-thaw resistant and food-contact grades, with 40 to 80 mesh granules and tailored uptake speed and gel strength. Batch test data, freeze-thaw cycling reports and OEM support are available. Contact FLORPOLY for a specification sheet, free sample or application advice.
Da maohua
Zhengzhou Flor New Materials Co., Ltd. specializes in SAP super‑absorbent polymer products. Serving personal hygiene, agriculture & horticulture, pet supplies and other industries, we leverage supply‑chain resources to provide particle‑size selection, performance matching and customized solutions based on clients’ practical requirements.
