Introduction to Construction Chemical Raw Material Hydroxypropyl Methyl Cellulose HPMC Powder

Hydroxypropyl Methylcellulose (HPMC), whose Chinese name is hydroxypropyl methylcellulose, is a semi-synthetic, non-ionic cellulose ether obtained by chemically modifying natural cellulose. This white powder can form a transparent viscous solution after dissolving in water. It has excellent thickening, water retention, stability and film-forming properties. It is an indispensable multifunctional additive in many fields such as construction.

Characteristics and advantages of Construction Chemical Raw Material Hydroxypropyl Methyl Cellulose HPMC Powder

Excellent water solubility: It can be quickly dissolved in cold water to form a clear and stable solution.

Efficient thickening and water retention ability: Increase the viscosity of the material, effectively reduce water evaporation, and improve work efficiency.

Good stability: It has good stability to acids, alkalis, and salts, and is suitable for a wide range of pH values.

Film-forming and protective effects: After drying, it forms a tough and transparent film to protect the substrate and prevent water penetration and evaporation.

Non-toxic and non-irritating: It has good biocompatibility and is suitable for the fields of medicine and food.

Adjustability: By changing the degree of substitution and molecular weight, its performance can be adjusted to meet different application requirements.

Specifications of Construction Chemical Raw Material Hydroxypropyl Methyl Cellulose HPMC Powder

Hydroxypropyl Methyl Cellulose (HPMC) Powder– Item Specifications

Fundamental Info

Item Call: Hydroxypropyl Methyl Cellulose (HPMC) Powder
CAS Number: 9004-65-3
Ordinary Molecular Weight: 80,000– 1,200,000 g/mol
Appearance: White to beige free-flowing powder
Smell: Odorless

Trick Technical Properties

Thickness (2% option at 20 ° C): 4,000– 100,000 mPa · s (personalized based on quality).
Hydroxypropyl Web content: 4– 30%.
Methoxyl Content: 19– 30%.
Wetness Content (max): 5%.
pH Value (2% option): 6.0– 8.0.
Ash Web content (max): 5%.
Particle Dimension: Travels through 80-mesh sieve (≥ 95%).

Efficiency Features

HPMC liquifies quickly in cold water and forms a clear, viscous remedy. It does not liquify in hot water above its gelation temperature (usually 50– 90 ° C, depending on quality). The powder shows strong water retention ability, which helps cement-based products remain practical much longer. It likewise boosts adhesion, decreases sagging, and enhances the consistency of mortars, tile adhesives, and plasters. HPMC is stable under regular storage problems and resists microbial assault.

Product packaging and Storage space

Product packaging: 25 kg multi-wall paper bags with inner polyethylene liner.
Storage space: Maintain in a great, completely dry location far from dampness and direct sunshine. Seal containers firmly after open up to protect against clumping. Shelf life is 12 months when stored effectively.

Safety and security and Handling

HPMC is safe and non-hazardous under typical usage. Stay clear of breathing dirt. Usage conventional industrial health techniques. Put on gloves and shatterproof glass if managing large amounts. Refer to the Safety Information Sheet (SDS) for full handling instructions.

Applications of Construction Chemical Raw Material Hydroxypropyl Methyl Cellulose HPMC Powder

Applications of Hydroxypropyl Methyl Cellulose (HPMC) Powder in Building

Key Duties in Modern Structure Products

Hydroxypropyl Methyl Cellulose (HPMC) powder is an important basic material used across many building and construction products. It functions well in dry-mix formulations like ceramic tile adhesives, makes, glues, and self-leveling compounds. Home builders count on HPMC because it enhances workability, water retention, and overall performance.

Water Retention for Better Healing
HPMC holds water inside cement-based mixes. This slow-moving launch assists cement moisturize completely. Stronger bonds create because of this. Without sufficient water retention, surfaces might crack or damage early.

Workability and Smooth Application
Adding HPMC makes pastes and mortars much easier to spread out. Workers locate the mix smoother and much less sticky. This decreases initiative during shoveling or spraying. Consistent texture likewise means less mistakes on site.

Adhesion and Stability
HPMC boosts just how well materials stay with walls, floor tiles, or substrates. It avoids drooping on vertical surface areas. Even thick layers remain in place without moving down. This is specifically useful for floor tile adhesives and exterior insulation systems.

Open Time Expansion
Specialists get more time to change tiles or appropriate plaster prior to the mix collections. HPMC slows drying simply sufficient to enable these improvements. This flexibility reduces waste and rework.

Compatibility and Security
HPMC mixes conveniently with various other additives like redispersible powders or starch ethers. It does not react severely with usual building chemicals. The powder is non-toxic and safe to take care of when made use of as guided.

Builders pick HPMC because it addresses genuine troubles on work websites. From little repairs to huge builds, this additive supports high quality results each time. Its role might be quiet, but its influence is clear in every smooth wall surface and securely set tile.

Company Profile

We are the global leader in lightweight concrete and advanced engineered foam solutions. Known globally for its commitment to research, innovation, and applied expertise, we have been providing engineered foam solutions since the early 2012’s.

We can supply high-quality concrete admixture and foam concrete related products all over the world.

The company has a professional technical department and quality supervision department, a well-equipped laboratory, and equipped with advanced testing equipment and after-sales customer service center.

If you are interested, please feel free and contact us.

Payment

T/T, Western Union, Paypal, Credit Card etc.

Shipment

By air, by sea, by express, as customers request.

5 FAQs of Construction Chemical Raw Material Hydroxypropyl Methyl Cellulose HPMC Powder

Frequently Asked Questions About HPMC Powder

What is HPMC powder used for in construction?

HPMC powder is a key additive in many building materials. It helps improve workability, water retention, and adhesion. You will find it in tile adhesives, renders, plasters, and self-leveling compounds. It makes these products easier to mix and apply.

How does HPMC affect water retention?

HPMC holds water inside the mixture longer. This gives cement more time to hydrate properly. Good water retention means stronger bonds and fewer cracks. It also helps prevent premature drying, especially on hot or porous surfaces.

Is HPMC powder safe to handle?

Yes, HPMC is non-toxic and safe under normal use. Always wear gloves and a mask when handling fine powders. Avoid breathing dust. Store it in a dry place away from moisture. Follow the safety instructions on the product label.

What grades of HPMC are available?

HPMC comes in different viscosity levels—low, medium, and high. The right grade depends on your application. Low-viscosity types suit tile adhesives. High-viscosity grades work better in thick renders or plasters. Choose based on your product’s performance needs.

How should HPMC powder be mixed?

Add HPMC slowly into water while mixing. Never dump it all at once—it can form lumps. Use clean, cool water. Mix until fully dissolved. Let the solution sit for a few minutes to reach full viscosity. Then add other ingredients as needed. Proper mixing ensures consistent performance.