Effect of HPMC on Gypsum-Based Products

Gypsum has long been used in the construction industry due to its versatility and wide applicability. It is non-toxic, fire-resistant, non-combustible, very functional and user-friendly, allowing its users to create aesthetically pleasing finishes. Gypsum also has very good thermal and acoustic properties.

The most common uses of gypsum products in the construction industry include gypsum precast wall and gypsum ceiling plasterboard, gypsum self-leveling mortars, gypsum hand-applied or machine-applied plasters, gypsum trowelable compounds, gypsum joint fillers and gypsum adhesives.

The properties and performance of gypsum can be significantly improved by using related additives. Cellulose Ether Products Hydroxypropyl Methyl Cellulose (HPMC), Hydroxy Ethyl Methyl Cellulose (HEMC) are specially formulated high-performance additives that transform basic gypsum-based cement products into premium grades with sought-after properties building materials.

plaster troweling compound

Different from the sand and cement method used in traditional construction, the gypsum plaster compound uses gypsum as the basic material and high molecular polymer as the cementitious material, which has good compatibility and strong adhesion with ordinary building surfaces.

Hydroxypropylmethylcellulose (HPMC), Hydroxyethylmethylcellulose (HEMC) is formulated to provide the following improvements to plaster troweling compounds:

Good water retention and long working time

Optimized product consistency and rheology

reduce lump formation

Improves adhesion and sliding resistance

plaster joint filler

Gypsum joint filler is used to fill joints between gypsum plasterboard or fiberboard.

Hydroxypropylmethylcellulose (HPMC), Hydroxyethylmethylcellulose (HEMC) is formulated to provide the following improvements to plaster troweling compounds:

Improves joint strength and flexibility, reducing the risk of joint cracking under expansion and contraction

Good water retention and long working time

Optimized product consistency and rheology

reduce lump formation

Improves adhesion and sliding resistance