Hydroxypropyl Methylcellulose (HPMC) is frequently utilized in gypsum-based products to improve workability, setting time, and final product quality, according to research and articles available on Google. For more information, please visit hpmc for gypsum plaster.

HPMC For Gypsum Hand Plaster:

Introduction of HPMC For Gypsum

Gypsum hand plaster is typically applied to exterior buildings, suitable for smaller and more delicate construction sites. HPMC for Gypsum plays a critical role in these applications by offering water retention, retardation, and lubrication, which collectively determine the quality of the plaster.

Technical Information of HPMC For Gypsum:

Products	MC	HPMC
HA	HE	HF	HJ	HK
Methoxyl Content (%)	27.0-32.0	28.0-30.0	27.0-30.0	16.5-20.0	19.0-24.0
Hydroxypropoxyl (%)	7.0-12.0	4.0-7.5	23.0-32.0	4.0-12.0
Relation Temperature(℃)	50-55	58-64	62-68	70-90
Appearance	White to off-white powder
PH Value	5.0-8.0
Viscosity	(2% water solution, 20℃)	50-54,000mpa.s (Brook-field RV)
50-200,000mpa.s (Brook-field LV)
Fineness	About 100% through 80 mesh, 98.5% through 100 mesh
Moisture (WT%)	≤5.0%
Ash (WT%)	≤5.0%

Features of HPMC For Gypsum:

• Good water retention

• Excellent thickening effect

• Better workability

• Anti-sagging

• Longer open time

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Package: 25kg/bag (valved bag), 1 ton/pallet

Application of the HPMC for Gypsum:

- Gypsum Plasters, tile Bond Mortar

- Joint Fillers, skim Coat

- Wall Putty Powder, diamond Grouts Additives

- External Wall Insulation System / External Insulation and Finish System

More Information about ZHICHENG Products:

1. Products classification: HK grades (unmodified products with surface treatment or not) C grades (highly modified products)

2. Viscosity range: 50~54,000 mpa.s (Brookfiled RV) or 50~200,000 mpa.s (NDJ/Brookfied LV)

3. Quality stability: ZHICHENG applies "half-done products management," ensuring the most stable quality.

4. Unmodified products: Higher purity, better performance, and more stable

5. Highly modified products: Imported technology offers better properties like water retention, slip resistance, crack resistance, and longer open time. Widely used in Tile adhesives, Wall Putty, Mortars, Gypsum-based products, etc.

6. Products traceability: We keep samples for each batch No. products for 2 years to track any quality problem raised by customers.

7. R&D center: We have a world-class R&D center to ensure the most professional technical support to our customers.

ZHICHENG started to develop and produce HPMC for Gypsum in the late 1970s and was one of the earliest companies to produce it in China. Our products won the 1978 Science Congress Achievement Award.

In 2012, the company expanded its production capacity to an annual output of 30,000 tons of non-ionic cellulose ether production lines. The production line adopts the first 26m³ large European-style reactor in China, controlled by DCS, ensuring good product uniformity and stable quality.

Leveraging advanced production technology, fully functional R&D center, and scientific management of ISO9000 quality system, the company's production technology has reached the international advanced level. Thus, we guarantee reliable product quality and professional technical level, offering the best price possible.

ZHICHENG always aims to offer customers the most cost/effective products.

If you are interested in our products, please contact us without hesitation.

EMAIL: sales@zchpmc.cn

What is HPMC for Gypsum Plaster

Gypsum plaster is a popular construction material known for its fire resistance and sound insulation properties. Hydroxypropyl Methyl Cellulose (HPMC) is often used to enhance its workability, adhesion, and performance.

1. Understanding HPMC

Hydroxypropyl Methyl Cellulose (HPMC) is a non-ionic cellulose ether derived from natural plant fibers. It is water-soluble and forms a transparent, viscous solution when mixed with water. HPMC is widely used in various construction materials due to its exceptional properties, including thickening, water retention, and adhesive capabilities.

2. Improving Workability

HPMC is an essential additive in gypsum plaster formulations because it improves the workability of the mixture. By adding HPMC, the plaster becomes cohesive and easier to spread, allowing for a smoother and more efficient application. The improved workability also reduces cracks and imperfections.

3. Enhanced Adhesion

One of the key benefits of incorporating HPMC in gypsum plaster is its ability to enhance adhesion. HPMC forms a thin film on the substrate surface, creating a strong bond between the plaster and the substrate. This enhanced adhesion ensures that the plaster adheres firmly, improving overall durability and longevity.

4. Water Retention

HPMC acts as a water retention agent in gypsum plaster, slowing down water evaporation from the mixture. This controlled evaporation allows proper curing, ensuring the plaster sets and hardens uniformly, reducing cracks and improving final strength.

5. Improved Crack Resistance

Cracks in gypsum plaster can be problematic, especially in regions with temperature and humidity changes. HPMC adds flexibility and adhesion properties to the plaster, improving crack resistance and accommodating slight movements in the substrate without causing cracks.

6. Environmentally Friendly

HPMC, derived from renewable plant fibers, is an environmentally friendly additive for gypsum plaster. It is biodegradable and contributes to sustainable construction practices.

7. Compatibility with Other Additives

HPMC is highly compatible with other additives used in gypsum plaster formulations. It can be combined with retarders, accelerators, and air-entraining agents to achieve specific properties and performance characteristics.

Conclusion

Hydroxypropyl Methyl Cellulose (HPMC) plays a significant role in enhancing the performance of gypsum plaster. By improving workability, adhesion, water retention, and crack resistance, HPMC ensures a smoother and more durable plastering process. As an environmentally friendly additive, it aligns with sustainable construction practices. For gypsum plaster manufacturers and construction professionals, incorporating HPMC into plaster formulations can lead to higher-quality, more efficient, and long-lasting results.

Frequently Asked Questions (FAQs)

Q1. Can HPMC be used in other construction materials?

A: Yes, HPMC is a versatile additive and widely used in various construction materials, including cement-based mortars, tile adhesives, and self-leveling compounds.

Q2. Does HPMC affect the setting time of gypsum plaster?

A: HPMC may slightly extend the setting time of gypsum plaster due to its water retention properties. However, the effect is usually minimal and can be managed by adjusting the formulation.

Q3. Is HPMC safe for use in construction applications?

A: Yes, HPMC is considered safe for use in construction applications. It is non-toxic, non-irritating, and poses no health hazards when handled properly. However, it is essential to follow the manufacturer's guidelines and safety recommendations during handling and storage.

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