6. How to check quality?

Whiteness, fineness (finer = better), solution clarity (clearer = better), specific gravity (higher = better water retention).

7. Why does putty have bubbles?

Too much water or applying second coat on a wet base.

8. Why does putty powder dust off?

Mainly poor-quality lime (ash calcium); poor HPMC water retention is secondary.

9. Does HPMC participate in chemical reactions?

No. Physical role only (water retention/thickening/lubrication).

Cool, dry, sealed, moisture-proof. Aqueous solutions need preservative.

Construction Grade Hydroxypropyl Methyl Cellulose HPMC Powder with High Viscosity

Name: Construction Grade Hydroxypropyl Methyl Cellulose HPMC Powder with High Viscosity
Brand: Qingdao New Sanda Industry Co., Ltd.
SKU: 1957817662

Shandong, ChinaQingdao New Sanda Industry Co., Ltd.

US$1.45-1.95

25 kg

Sample price:US$1.00/kg.Request sample

Product profile

Customization

Available

CAS No.

9004-65-3

EINECS

231-545-4

Model NO.

HPMC

Appearance

Powder

Usage

Oil Drilling Auxiliary Agent, Coating Auxiliary Agents, Construction, Detergent, Cosmetic

Color

White

After-Sales Service

Technical Assistance

Type

Cellulose Ether

Other Names

Hydroxypropyl Methyl Cellulose

Viscosity (2% Solution, Rt)

400-200000MPa.S

Factory

OEM

Transport Package

25kgs/Bag

Specification

25kg/bag

Trademark

NEWSANDA

Origin

China

HS Code

3912900000

Production Capacity

15000tons Per Year

Key features

Cold water soluble --easy to use, unaffected by pH

Excellent water retention --prevents moisture loss, extends open time (key advantage in construction)

Thickening and anti-sagging -- improves workability and smooth application

Good film-forming properties --suitable for coatings, capsules, etc.

Chemically stable --non-ionic, good compatibility, no reaction with other ingredients

Safe and non-toxic --not metabolized by the human body, widely used in pharmaceuticals and food

Customizable specifications --various viscosity grades for different applications

Company profile

Qingdao New Sanda Industry Co., Ltd.

Shandong, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2015-05-03Nearest Port: QINGDAO, TIANJINAverage Response Time: ≤5.84hTerms of Payment: LC, T/T, PayPal, etc.International Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, FCA

AI-Powered supplier vetting

SummaryQingdao New Sanda Industry Co., Ltd. is identified as both a trading company and manufacturer/factory in China, focused on chemicals and construction-related products. The supplier reports ISO-series management certifications, two production lines, 21–30 quality-control staff, and peak- and off-peak order fulfillment within 15 working days. Its stated capabilities include R&D, customized formulations, formulation optimization, application testing, troubleshooting, multilingual documentation, and after-sales support. The supplier reports extensive export coverage and began exporting in 2015, but the available trade evidence shows only one recorded transaction and one associated buyer. Financial credibility cannot be assessed because financial data is excluded from evaluation.

Supplier typeThe supplier is explicitly classified as both a Trading Company and Manufacturer/Factory. Its stated business focuses on chemical products and industrial additives, including Titanium Dioxide, HPMC, VAE, HEC, CMC, and related materials.

CertificationsThe supplier lists ISO 9000, ISO 14001, ISO 9001, ISO 14000, and ISO 20000 certifications. These stated certifications provide explicit evidence of certified management-system coverage, although the slices do not provide certificate numbers, validity dates, or scope details.

After-Sales capabilityThe supplier states that it provides after-sales service, multilingual documentation, formulation optimization, application testing, and troubleshooting. These are explicit service offerings supporting customers after product delivery.

R&D capabilityThe supplier describes a dedicated R&D team, technical innovation, market-responsive product development, and feedback integration from global partners. It also reports total R&D engineer experience of 11–20 years, supporting an established innovation function.

Production capacityThe supplier presents itself as a chemical manufacturer and reports two production lines, 21–30 quality-control staff, and fulfillment within 15 working days in both peak and off-peak periods. Its product portfolio and end-to-end commercial supply description support production capability, although total output details are not evaluated here.

Customization capabilityThe supplier explicitly offers customized formulations for specific application challenges and provides formulation optimization, application testing, and troubleshooting. Its process includes sample testing through full-scale commercial supply, indicating support for tailored industrial additive solutions.

Product Q&A

Q:1. How to choose the right grade?

Putty powder : 100,000 Mortar & tile adhesive : 150,000+ Film coating : low viscosity (3-15) Controlled-release tablets : high viscosity (4,000-100,000)

Q:2. HPMC 100,000, What does the number mean?

Viscosity of a 2% solution at 20 degree (mPa.s). Higher number = thicker.

Q:3. What's the difference between "Instant" and "Hot-Soluble"?

Instant: disperses in cold water, viscosity releases gradually Hot-Soluble: disperses in hot water, dissolves upon cooling

Q:4. Can I add directly to hot water?

No. It will form hard lumps.

Q:5. What affects viscosity?

Temperature ( low when hot, high when cold), concentration (higher = thicker), pH (stable 3-11), additives (test compatibility).