ISO 9001 · ISO 14001 · ISO 45001 certified factory Polycarboxylate superplasticizer specialist since 2012
Factory-direct PCE powder & flake · Free samples on request

Polycarboxylate Superplasticizer Powder with 97% solid content

Third-generation PCE superplasticizer in flake and powder form — 97.0% min solids, completely water-soluble, up to 35% water reduction. For concrete, dry-mix mortar, self-levelling, tile adhesives and oil-well cementing. Manufactured and tested in-house, shipped worldwide.

97%solid content
25–35%water reduction
0.1–0.6%recommended dosage
SGS third-party tested R&D lab with Shandong University 25 kg bags to 27 t containers
CL-2621 polycarboxylate superplasticizer powder
3rd-generationPCE, eco-friendly & non-toxic
97% solidscompletely water-soluble
Factory directcut out the middleman
4PCE powder & flake grades
97%solid content
25–35%water reduction ratio
50–60 °Cheat-stable grades
What it does for your mix

Powder PCE that pays back in every mix

PCE superplasticizer is the third generation of water-reducing agents — evolved from lignosulfonate and naphthalene types. In flake and powder form it disperses cement and mortar particles more effectively, so you use less water and less binder without giving up workability.

97%

Solid content

97.0 ± 1.0% solids in every bag — completely water-soluble. Dissolve to a 10% or 20% solution for ready-mix concrete and mortar dosing.

25–35%

Water reduction

Lower water-cement ratio means higher strength and denser concrete — water reduction ratio tested at ≥ 25%, up to 35% on P.O 42.5 cement.

50–60 °C

Heat-stable grades

CL2618 stays effective to 60 °C and the rest to 50 °C — built for hot climates, warm storage and demanding mixing conditions.

≤ 0.02%

Low chloride & alkali

Chloride ≤ 0.02% and total alkali ≤ 0.3% keep reinforcement safe — suited to reinforced and prestressed concrete.

0.1–0.6%

Low dosage, high yield

Recommended dosage is only 0.1–0.6% of cementitious weight. A little goes a long way — each 25 kg bag covers far more mortar or concrete than conventional admixtures.

Flake + powder

Form matched to your use

Flakes for water-reducing and slump-retention concrete, powders for dry-mix mortar, self-levelling and tile adhesives. Pick the form that suits your plant.

The product

Four powder & flake grades. One supplier.

Flakes and powders with 97% min solids, ISO-certified and batch-tested in our own lab. Choose by form and priority: water reduction, slump retention, dry-mix mortar or heat resistance.

CL-2628 polycarboxylate superplasticizer flake Water reducing

CL-2628

Flake97% solids≤ 50 °C

High-performance PCE flake with water-reduction ratio up to 35%. Completely water-soluble, eco-friendly, made from EPEG 912.

Use for: ready-mix concrete, precast, high-strength & SCC
CL-2645 polycarboxylate superplasticizer flake with long slump retention Slump retention

CL-2645

Flake97% solidsLong retention

Slump-retention PCE flake that keeps concrete fluid and cohesive over long hauls and hot weather, without segregation.

Use for: long hauls, hot weather, pumped & mass concrete
CL-2621 fully water-soluble polycarboxylate superplasticizer powder Dry-mix mortar

CL-2621

Powder97% solidsWater-soluble

Fully water-soluble PCE powder for dry-mix mortar and concrete — gypsum- and cement-based systems, self-levelling, plaster, grouts and adhesives.

Use for: dry-mix mortar, SLU, tile adhesives, grouts
CL-2618 heat-resistant polycarboxylate superplasticizer powder Heat stable 60 °C

CL-2618

Powder97% solids≤ 60 °C

Heat-resistant PCE powder with excellent early strength, optimized for construction chemicals, self-levelling screeds and oil-well cementing.

Use for: screeds, repair mortars, oil-well cementing
GradeFormSolidWater reductionDosageBest for
CL-2628Flake97%≥ 25% (up to 35%)0.1–0.5%Ready-mix, precast, high-strength concrete
CL-2645Flake97%≥ 25%0.1–0.5%Long slump retention, hot weather
CL-2621Powder97%≥ 25%0.1–0.5%Dry-mix mortar, self-levelling, tile adhesives
CL-2618Powder97%≥ 25%0.1–0.6%Heat-resistant mortar, screeds, oil-well cement

Packaging: 25 kg plastic woven bags with PE inner liner · 14–16 t per 20'GP · 27 t per 40'HC — customized packaging available on request.

Each grade links to its full datasheet on our official site.

Technical data

Specs you can build a mix around

Published figures below are from our product datasheets for the powder & flake grades. Every batch is tested in our own laboratory; independent SGS testing per GB 8076-2008 is available on request.

Property (typical, CL-2628 flake)Value
AppearanceWhite or light yellow flake
Bulk density450 ± 50 kg/m³
Solid content97.0 ± 1.0%
pH value5 – 7
Moisture content≤ 3.0%
Water reduction ratio≥ 25% (up to 35%)
Chloride content (Cl⁻)≤ 0.02%
Total alkali content≤ 0.3%
Property (typical, CL-2621 powder)Value
AppearanceWhite or light yellow powder
Bulk density500 ± 50 kg/m³
Solid content97.0 ± 1.0%
pH value5 – 7
Moisture content≤ 3.0%
Water reduction ratio≥ 25%
Chloride content (Cl⁻)≤ 0.02%
Total alkali content≤ 0.3%
Max working temperature50 °C (CL-2618: 60 °C)
Usage & handlingGuideline
Recommended dosage0.1–0.5% of cementitious materials by weight (CL-2618: 0.1–0.6%) — confirm by mix design test
How to doseDissolve flake or powder in water to a 10% or 20% solution before use in ready-mix concrete
CompatibilityDo not mix with naphthalene sulphonate; run compatibility tests when used with other admixtures
StorageStore dry below 40 °C, no stacking or heavy pressure to avoid caking
Shelf life12 months unopened — use within 60 days after opening

Non-toxic, non-irritating, non-combustible. Transported as general chemical products. Full COA and MSDS supplied with every shipment.

Applications

One powder, every dry and wet mix

From dry-mix mortar plants to ready-mix concrete, from self-levelling screeds to oil-well cementing — one supplier covers the whole mix design.

Ready-mix & precast concrete
Dry-mix mortar
Self-levelling underlayments (SLU)
Tile adhesives & joint fillers
Plaster & masonry
Non-shrink & injection grouts
Repair & waterproofing mortars
Gypsum & cement-based screeds
Oil-well cementing
Pressed cement slurry
Dry-mix concrete
High-strength concrete & SCC
Why Chengli

Buy from the factory, not a trader

Binzhou Chengli Building Materials Co., Ltd. is a Chinese manufacturer specializing in concrete admixtures — production, R&D and export under one roof since 2012.

Certified quality systems

ISO 9001 quality, ISO 14001 environmental and ISO 45001 occupational health & safety management — valid through 2028.

Third-party verification

Independent SGS testing per GB 8076-2008 confirms solid content, pH, alkali and chloride levels — shareable on request.

25,086 m² plant, 600 m² lab

Complete production lines plus a chemical-analysis and physical-property laboratory built with Shandong University.

Batch-to-batch consistency

Incoming raw materials are inspected and every index recorded; production is controlled end-to-end so every drum performs like the last.

Export-ready logistics

200 kg drums, 1000 L IBC tanks and 23 t flexitanks; packaging can be customized to your port, pallet or labeling needs.

Technical support included

Tell us your cement, aggregates and target slump or strength — our lab will recommend the grade and dosage before you order.

Verified, not just claimed

Certificates and test reports are available for your compliance review.

ISO 9001:2015Quality management · valid to 2028
ISO 14001:2015Environmental management · valid to 2028
ISO 45001:2018Occupational health & safety · valid to 2028
SGS test reportGB 8076-2008 compliant results
Transport classificationNon-toxic, non-flammable, non-corrosive
Verified by third parties

Certifications & Patents

ISO-certified management systems, plus invention and utility-model patents covering our admixture formulations and production equipment.

FAQ

Quick answers before you ask

Can I get a sample first?

Yes — samples are available on request. Send us your contact and application details through the form or WhatsApp, and we will arrange a sample with the datasheet for the grade that fits your mix.

What forms are available — flake or powder?

CL-2628 and CL-2645 are flake grades for water reduction and slump retention in concrete; CL-2621 and CL-2618 are powder grades for dry-mix mortar, self-levelling and heat-resistant applications. All are 97% min solids and completely water-soluble — dissolve to a 10% or 20% solution before use in ready-mix concrete.

How do I choose between the four grades?

Use CL-2628 for standard and high-strength concrete, CL-2645 when you need long slump retention for hauls or hot weather, CL-2621 for dry-mix mortar and self-levelling systems, and CL-2618 when you need heat resistance or oil-well cementing performance. Our technical team can recommend the right grade and dosage for your materials.

What is the recommended dosage?

Typically 0.1–0.5% of cementitious materials by weight (0.1–0.6% for CL-2618), depending on the grade, target performance and materials. Always run a compatibility and dosage trial with your own cement or dry-mix formula; our lab can support the mix design.

How should it be stored, and how long does it last?

Store in a dry place below 40 °C without stacking or heavy pressure to avoid caking. Shelf life is 12 months in the original package; use within 60 days after opening. The product is non-toxic, non-irritating and non-combustible.

What is the packaging and MOQ?

Standard export packaging is 25 kg plastic woven bags with PE inner liner — about 14–16 t per 20'GP and 27 t per 40'HC with pallets. Packaging can be customized to your port, pallet and labeling needs; MOQ and lead time depend on grade and destination — we confirm within one working day.

Get a quote or free sample

Tell us your application, grade and quantity. A factory sales engineer will reply within one working day with pricing, datasheets and shipping options.

Factory137-7# Yongxin Rd, Bincheng District, Binzhou City, Shandong Province, China

Request your quote

Fields marked * are required. We reply within one working day.

Your enquiry is delivered to the same factory inbox as our website feedback form and saved in our admin backend. We reply within one working day.

Get a Quote WhatsApp