Construction Grade Cellulose Ether HPMC
Whether new or old customers, we believe in the long-term expression and reliable relationship of Construction Grade Cellulose Ether HPMC,Hydroxypropyl Methylcellulose Distributor,HPMC For Powder Coating. We warmly welcome you to establish a cooperative relationship with us and create a better future together. The product will supply to all over the world, such as Pakistan ,Bosnia and Herzegovina ,Philippines ,Rwanda ,Indonesia . Since our inception, we have continuously improved our products and customer service. Our merchandise in the production process have got strictly monitored, because it is only to supply you the best quality, we'll feel confident. We've been always creating new technology to streamline the production, and give products with competitive prices and high quality! Customer satisfaction is our priority!We hope to have win-win business relationships with you, and create a better tomorrow.
Faq
What are the formulations for interior and exterior wall putty powder?
The viscosity of HPMC is inversely proportional to temperature, meaning that viscosity increases as temperature decreases. When we refer to the viscosity of a certain product, it generally refers to the measurement result of its 2% water solution at 20 degrees Celsius.
In practical applications, in regions with large temperature differences between summer and winter, it is advisable to use relatively lower viscosity during winter for better construction. Otherwise, at low temperatures, the viscosity of the cellulose increases, resulting in a heavier feel during application.
Medium viscosity: 75,000-100,000 (mainly used for putty)
Reason: Good water retention.
High viscosity: 150,000-200,000 (mainly used for polystyrene particle insulation mortar powder and foamed glass bead insulation mortar)
Reason: High viscosity, reduces mortar dusting and sagging, improves construction.
However, in general, higher viscosity provides better water retention. Therefore, many dry mortar manufacturers consider using medium-viscosity cellulose (75,000-100,000) instead of low-viscosity cellulose (20,000-40,000) to reduce the dosage and costs.
What is the main use of 1-Hydroxypropyl methylcellulose (HPMC)?
The cold-water soluble type of HPMC is surface-treated with formaldehyde, allowing it to disperse rapidly in cold water but not truly dissolve. It only dissolves when the viscosity increases. The thermal soluble type does not undergo surface treatment with formaldehyde. A higher dosage of formaldehyde results in faster dispersion but slower viscosity increase, while a lower dosage has the opposite effect.
HPMC is a non-ionic type of cellulose ether. So, what does "non-ionic" mean?
The gelation temperature of HPMC is related to its methoxy content. The lower the methoxy content, the higher the gelation temperature.
What is the recommended viscosity of Hydroxypropyl Methylcellulose (HPMC)?
The powder loss in putty is mainly related to the quality of the lime powder and has little to do with HPMC. Low calcium content in lime powder and an improper ratio of CaO and Ca(OH)2 in lime powder can both cause powder loss. If there is a slight relationship with HPMC, it would be that poor water retention of HPMC can also contribute to powder loss.