The European Commission received a request from Association Management & Regulatory Services Ltd2 for re-evaluation of the product hydroxypropyl methyl cellulose, when used as a feed additive for all animal species (category: technological additives; functional groups: emulsifier, stabilizer, thickener, gelling agent or binder).
2. Food industry:
In the absence of data, the FEEDAP Panel is not in the position to conclude on the safety of HPMC for the user.
But, there are some potential disadvantages that are not immediately obvious. HPMC is listed as a food ingredient — E464 — which means that recommended daily maximum quantities must be defined. HPMC undergoes a rigorous manufacturing process involving the synthetic — and not natural — alteration of cellulose. During production, various highly reactive, harmful or toxic substances are used that must be removed and disposed after production, including propylene oxide (which is considered to be carcinogenic) and chloromethane.
In the pharmaceutical industry, HPMC is used as a coating material for tablets and capsules. It is known for its excellent film-forming properties, which help protect the active ingredients from degradation and moisture. HPMC coatings also provide a smooth and glossy finish to the tablets, making them easier to swallow and more visually appealing. 1. Paint Thickeners HPMC is commonly used as a paint thickener to adjust the viscosity of coatings, ensuring they are easy to apply and provide good coverage. In conclusion, the integration of HPMC into gypsum plaster formulations addresses many of the material's inherent limitations. By enhancing workability, water retention, adhesion, water resistance, and contributing to more sustainable building practices, HPMC elevates the performance of gypsum plaster. These improvements ensure that gypsum plaster remains a preferred choice for builders, sculptors, and designers who demand both excellence in performance and aesthetics in their work.