wiper rod seal
The second type is medium-viscosity HPMC. This type is commonly used in pharmaceutical applications. Medium-viscosity HPMC serves as a binder and a controlled-release agent in tablet formulations. Due to its ability to form gels in aqueous environments, it helps control the release rate of active pharmaceutical ingredients (APIs), improving the therapeutic effectiveness of medications. Moreover, it is often used in ocular preparations to lubricate dry eyes, providing comfort to patients with eye conditions.
hpmc types

Understanding the solubility characteristics of HPMC is crucial when formulating products like gels, emulsions, and suspensions. For instance, in pharmaceutical applications, HPMC is commonly used as a thickening agent in topical formulations and as a controlled-release matrix in oral dosage forms. The solubility chart provides guidance on how to achieve the desired viscosity and release profiles, ensuring that the final product meets the therapeutic needs of patients.
hpmc solubility chart
