Introduction of HPMC uses
Product form:White to off-white powder
Hydroxypropyl Content: 9-12%
Methoxyl Content: 18-24%
Viscosity: 300-200,000 mPa.s
CAS No.: 9004-65-3
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Every HPMC use in industry can be traced back to one of five functions the molecule performs in water: it thickens, it holds water, it forms films, it suspends solids, and it gels reversibly on heating. Hydroxypropyl methylcellulose (HPMC) is a nonionic cellulose ether whose methoxyl groups (19–30%) and hydroxypropyl groups (4–12%) determine how strongly each function appears in a given grade. Once a formulator understands the five functions, the long list of HPMC uses stops being a list to memorize and becomes a set of problems to solve.
That is why this guide organizes HPMC uses by function rather than by industry. The same thickening function that gives a tile adhesive its body is the one that gives a liquid detergent its pour; the same water retention that stops render from drying too fast is the one that keeps a paint film leveling. Read the function, then follow it to the industries it serves.
Every batch of HPMC is produced to the same specification and verified in the laboratory before release. A certificate of analysis accompanies each shipment.
| Parameter | Specification |
|---|---|
| Appearance | White or off-white powder |
| Viscosity | 300–200,000 mPa·s |
| Methoxyl content | 19–30% |
| Hydroxypropyl content | 4–12% |
| Bulk density | 350–450 kg/m³ |
| pH value | 6.0–7.0 |
| Water retention rate | ≥90% |
| Gelation temperature | 65–75°C |
Three industry groups show how the five functions combine in real products. Each group leans on a different pair of HPMC uses.
Dry mix mortar, tile adhesive, plaster, render, putty and self-leveling compounds use HPMC to hold water in the mix while cement hydrates and to give the wet material body so it stays where applied. Retention of 90% or more directly controls open time, workability and final bond strength, which is why HPMC dosage is one of the first variables a dry mix formulator tunes.
Water-based paints, primers and texture coatings use HPMC to reach application viscosity, to suspend pigment and filler so they do not settle, and to slow water loss while the film levels. The nonionic character keeps HPMC compatible with latex and surfactants, and grades are selected across the 300–200,000 mPa·s range depending on whether the product is a spray paint, a roller paint or a thick texture coat.
Liquid detergents and cleaners rely on HPMC for body and clarity; ceramics use it as a binder and green-strength builder; polymerization processes use the protective colloid and suspension behavior; and the reversible 65–75°C gelation finds work wherever heat must trigger structure. One polymer, five functions — which is why HPMC uses keep multiplying across industries.
Every grade we supply is shipped in one dependable export format: a standard 25 kg bag with consistent net weight on every unit.
One supplier, one standard across every HPMC use. These are the reasons formulators keep reordering.
Every production batch is tested in our own laboratory before release — viscosity, methoxyl and hydroxypropyl content, pH, water retention rate and gelation temperature are verified against the specification sheet, and a certificate of analysis (COA) is issued for each shipment. Our chemists also help you match the right grade to your formulation and target viscosity.
Beyond the standard 25 kg bag, we offer flexible packaging customization — private-label and OEM bags printed with your brand, custom labelling for local markets, and packing formats arranged to your warehouse or project requirements. Share your specification with the order and we will confirm the details before production.
HPMC is used in dry mix mortars, tile adhesives, renders, plasters, putties and joint compounds as a water retention agent and thickener. It holds mixing water in the fresh material (retention ≥90%) so cement hydrates properly, and it gives the wet mix body so it stays where applied with a workable open time.
Uses describe the job the polymer performs — thickening, water retention, film formation, suspension or thermal gelation. Dosage is how much powder you add, usually expressed as a percentage of the dry mix or solution weight, and it depends on the grade viscosity you select within 300–200,000 mPa·s and the performance target of your formula.
Natural gums vary batch to batch, degrade quickly and often cannot tolerate salts, surfactants or heat. HPMC is a consistent, nonionic cellulose ether: its viscosity, substitution ratio and water retention are controlled in production and verified on a COA, so the same use delivers the same result in every batch.
Often yes. Because all five functions come from the same molecule, a mid-viscosity grade can thicken, retain water and suspend solids at once — which is why a single grade often serves both mortar and paint. For extreme requirements, such as very high body or a precise 65–75°C gelation behavior, a dedicated grade is a better fit.
Match the viscosity grade to the body your product needs: lower grades around 300–5,000 mPa·s for easy flow and fast dissolution, mid grades for paints and self-leveling compounds, and high grades up to 200,000 mPa·s for thick pastes and vertical applications. Send us your use and target consistency and we will narrow the range for you.
Yes. Free samples and the batch COA ship typically within 24 hours of your inquiry to sales03@eclatmat.com, so you can test thickening, water retention or film behavior in your own formulation before committing to a production order.
Tell us which function your product needs — thickening, water retention, film, suspension or gelation. We will recommend the right grade, confirm pricing and dispatch a free sample — typically within 24 hours.
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