Hydroxypropyl methylcellulose (HPMC) is a versatile polymer with applications in a variety of industries. Its usage may vary depending on specific applications and industries.
1.Construction industry:
HPMC is commonly used in construction materials such as cement-based mortars, tile adhesives and grouts.
Amounts used in mortar formulations range from 0.1% to 0.5% by weight.
In ceramic tile adhesives, HPMC is added in an amount of 0.2% to 0.8% to improve workability and adhesion.
2. Drugs:
In the pharmaceutical sector, HPMC is used as a pharmaceutical excipient in tablet, capsule and eye drop formulations.
The usage rate in tablet formulations is usually between 2% and 5%, acting as a binder and release control agent.
For ophthalmic solutions, HPMC is used at lower concentrations of approximately 0.3% to 1%.
3. Food industry:
HPMC is used in the food industry as a thickener and stabilizer.
Usage rates in foods may vary but are generally in the range of 0.1% to 1%.
4.Paints and Coatings:
In paints and coatings, HPMC is used as a thickener, providing improved viscosity and sag resistance.
The amount used in coating formulations can range from 0.1% to 1%.
5. Personal care products:
HPMC is used in cosmetics and personal care products such as lotions, creams and shampoos.
Usage rates for these products typically range from 0.1% to 2%.
6. Oil and Gas Industry:
In the oil and gas industry, HPMC is used as a tackifier in drilling fluids.
The amount used in drilling fluid formulations can range from 0.1% to 1%.
7. Textile industry:
HPMC is used in the textile industry as a sizing agent for warp yarns.
Textile sizing usage rates vary, but generally range from 0.1% to 2%.
8. Adhesives and sealants:
In adhesives and sealants, HPMC is used to improve bond strength and rheological properties.
Usage rates in adhesive formulations can range from 0.1% to 1%.
It is important to note that these usage rates are general guidelines only and specific formulations may need to be adjusted based on desired performance. Additionally, regulations and standards may affect the permitted use of HPMC in different applications. Manufacturers and formulators should always refer to relevant guidance and conduct appropriate testing for their specific formulations