Regulation (EC) No 1831/20031 establishes the rules governing the Community authorisation of additives for use in animal nutrition. In particular, Article 10(2) of that Regulation also specifies that for existing products within the meaning of Article 10(1), an application shall be submitted in accordance with Article 7, at the latest one year before the expiry date of the authorisation given pursuant to Directive 70/524/EEC for additives with a limited authorisation period, and within a maximum of seven years after the entry into force of this Regulation for additives authorised without a time limit or pursuant to Directive 82/471/EEC.

HPMC has the unique ability to retain water, making it an ideal additive in cement-based mortars and plasters. It prevents rapid water evaporation, allowing sufficient time for proper hydration of cement particles and enhancing the overall strength and durability of the construction materials.

If you enjoyed this article, I’ve written about psyllium husk, mono- and diglycerides of fatty acids, lecithin and xanthan gum too.

4)Methyl Cellulose has a noticeable impact on the workability and adhesion of mortar. Adhesion here refers to the adhesive force felt between the worker's application tool and the substrate. Greater adhesion leads to higher shear resistance and requires more force during application, resulting in decreased workability. In terms of cellulose ether products, Methyl Cellulose exhibits moderate adhesion.

HYDROCEL – HPMC/HYPROMELLOSE

Methyl cellulose (MC) and HPMC (hydroxypropyl methyl cellulose) are two types of cellulose-based polymers. Both are white powders used in a variety of industries, including food, pharmaceuticals, cosmetics, and construction. But what is the difference between methyl cellulose and HPMC?