In gypsum products, cellulose ethers are mainly used to retain water and increase smoothness. Together they provide some relief. It can solve the doubts of drum cracking and initial strength during construction and prolong working time.
We have specially developed gypsum grade HPMC to improve processability, water retention, consistency, stability and sag resistance and adhesion to different substrates.
Hydroxypropyl methyl cellulose (HPMC) is a non-ionic cellulose ether obtained from cellulose after alkalinization, etherification, neutralization and washing.
HPMC for gypsum has good thickening, dispersing, emulsifying and film-forming properties, and is the first choice for producing high quality building material additives.
To meet the needs of environmental protection, our product has the characteristics of high water retention, good dispersibility, good fineness, good processability and easy dissolution. It is widely used in building substrates, with good water retention and improved workability. It can also prolong the opening time and improve the anti-sagging property.
Anti-shrinkage, anti-hollowing and anti-cracking properties
Good anti-sagging property
Good water retention
Technical Data Sheet:
Wide range of uses
In Cement Based Products:
(1) Tile Adhesive;
(2) Wall Putty;
In Gypsum Based Products:
(1) Gypsum Machine Plaster;
(2) Gypsum Hand Plaster;
(3) Gypsum Finishing Plaster;
(4) Joint Filler, Crack Filler
HPMC Used For Detergent:
(1) Washing Liquid;
(2) Dish Wash;
Recommended reading: HPMC's effect on gypsum products
With the rapid development of construction industry, people's demand for new construction materials is increasing. Due to the increase of people's awareness of environmental protection and the continuous improvement of construction efficiency, gelling materials and gypsum products have been developed rapidly. Nowadays, the most common gypsum products are gypsum plaster, self-adhesive plaster, pre-built gypsum and tile adhesive.
Gypsum plaster is a high-quality plastering material for interior walls and ceilings. After use, the wiped wall surface is smooth and delicate, without powder, firmly bonded with the substrate, without cracking and falling off. And it has fireproof function.
Mastic is a new type of building light board adhesive, which is a sticky material made of gypsum as the substrate and adding many kinds of additives. It is suitable for bonding between all kinds of inorganic building wall materials. It is non-toxic, tasteless and has the characteristics of early, strong, fast curing and firm bonding, which can be used as a support material for building panels and buildings.
These gypsum products have a range of different functions. Gypsum and associated fillers play a role. In addition, the key issue is that the addition of cellulose ether additives plays a dominant role. Since gypsum can be divided into hard gypsum and hemihydrate gypsum, different types of gypsum have different effects on the performance of the products, so the properties such as thickening, water retention and retarding determine the quality of gypsum building materials.
The common problem of these materials is hollow cracks and failure to reach the initial strength. To solve this problem, there is an option to use a compound of cellulose model and retarder. For this, hydroxypropyl methyl cellulose 30,000-60,000 cps is generally used, with an addition of 1.5%-2%. Among them, cellulose plays the main role of water retention, retardation and lubrication. However, in this process, cellulose ether alone as a retarder does not achieve the effect, mixed with citric acid retarder will not affect the initial strength.
Q1: Are you trading company or manufacturer?
We are factory.
Q1: Do you provide samples? is it free or extra?
Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q1: Do you accept customization?
OEM can be acceptable. We can produce according to your indicators.
Q1: How long is your delivery time?
Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock.
Q1: What is your payment terms?
T/T 30% in advance and balance against copy of B/L.
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