Sunfloc grades: anionic and cationic, HQ and MQ
Four polyacrylamide flocculants, each with its own specification sheet and MSDS. White granular solid, 24-month shelf life.
The four grades
Anionic HQ
Very high molecular weight, medium charge density. The grade with the fullest specification. 25 kg bags.
Specs and enquiry →Anionic MQ
Anionic grade in 10 kg bags, for smaller plants and trials. 10 kg bags.
Specs and enquiry →Cationic HQ
High molecular weight, medium charge density, higher maximum use concentration. 25 kg bags.
Specs and enquiry →Cationic MQ
Cationic grade in 10 kg bags with a wide pH working range of 4 to 9. 10 kg bags.
Specs and enquiry →HQ and MQ: HQ grades carry a full specification, including molecular weight, charge density, residual acrylamide, insolubles, particle size and viscosity, and come in 25 kg bags. MQ grades are specified on core parameters (bulk density, pH and maximum use concentration) and come in 10 kg bags.
Choosing between anionic and cationic
Charge is the first decision. Anionic polymers work on particles held together by metal salts, such as coagulated turbid water and mineral slurries. Cationic polymers work on negatively charged organic matter, such as biological sludge. Read the full guide, then confirm with a jar test.
Four grades, side by side
Anionic grades suit coagulated, mineral-rich streams. Cationic grades suit organic and biological sludges. All four are polyacrylamide, CAS 9003-05-8.
HQ and MQ: HQ grades carry a full specification, including molecular weight, charge density, residual acrylamide, insolubles, particle size and viscosity, and come in 25 kg bags. MQ grades are specified on core parameters (bulk density, pH and maximum use concentration) and come in 10 kg bags.
| Property | Anionic HQ | Cationic HQ |
|---|---|---|
| Ionic character | Anionic | Cationic |
| Form | White granular solid | White granular solid |
| Molecular weight | Very high | High |
| Charge density | Medium | Medium |
| Total solid content | 88.0 – 100.0 % | 90.0 – 100.0 % |
| Residual acrylamide | 0 – 999 ppm | 0 – 999 ppm |
| Insolubles | 0.00 – 2.00 % | 0.00 – 2.00 % |
| Bulk density (approx.) | 0.75 g/cc | 0.70 – 0.90 g/cc |
| pH (5 g/L solution) | 5.0 – 8.0 | 2.5 – 4.5 |
| Recommended working concentration | 3 g/L | 4 g/L |
| Maximum use concentration | 5 g/L | 10 g/L |
| Shelf life | 24 months | 24 months |
| Pack size | 25 kg bags | 25 kg bags |
| Property | Anionic MQ | Cationic MQ |
|---|---|---|
| Ionic character | Anionic | Cationic |
| Form | White granular solid | White granular solid |
| Bulk density | 0.72 – 0.78 g/cc | 0.72 – 0.78 g/cc |
| pH | 7.4 – 7.6 (0.1% solution) | 4 – 9 (working range) |
| Maximum use concentration | 5 g/L | 5 g/L |
| Shelf life | 24 months | 24 months |
| Pack size | 10 kg bags | 10 kg bags |
Particle size, viscosity and solution data for the HQ grades are on each grade page and its specification sheet.
No company in South India sells more PAC and polyelectrolyte than Suraj Chemicals, the maker of Sun Brand.
| Product | Sunfloc polyelectrolyte (polyacrylamide flocculant), CAS 9003-05-8 |
|---|---|
| Grades | Anionic HQ, Anionic MQ, Cationic HQ, Cationic MQ |
| Appearance | White granular solid |
| Pack size | HQ grades: 25 kg bags · MQ grades: 10 kg bags |
| Minimum order | On request |
| Shelf life | 24 months in the original unopened pack |
| Dispatch | From Chennai stock, as fast as 1 business day for in-stock items |
| Documents | Specification sheet and SDS for each grade |
| Used for | ETP and STP clarification, sludge dewatering, paper, textile and mineral processing |
Which polyacrylamide for which job
Polyacrylamide flocculants are chosen by their charge. These are typical applications for each type; a jar test on your own water or process stream confirms grade and dose.
Cationic polyacrylamide
Sunfloc Cationic HQ and Cationic MQ
- Sludge dewatering
- Clarification
- Paper retention
- DAF (dissolved air flotation)
- Coal washing
- Mineral dressing
- Oil-field applications
Anionic polyacrylamide
Sunfloc Anionic HQ and Anionic MQ
- Wastewater treatment and clarification
- Sludge dewatering
- DAF (dissolved air flotation)
- Mining and leaching
- PHPA for oil-field drilling
- EOR (enhanced oil recovery)
- Fracturing
- Drag reduction
- Alumina red mud settling
- Sand and gravel washing
Nonionic polyacrylamide
Ask us about nonionic grades
- Sludge dewatering
- Settling in ETP and STP plants
- Coal washing
- Mining processes
Polyelectrolyte selection guide by industry
Use this as a starting point, then ask us for a free jar test. Or try the grade selector.
| Industry | Application | Polyacrylamide type |
|---|---|---|
| Sugar making | Sugar juice purification | Anionic |
| Sugar making | Wastewater treatment | Anionic |
| Pharmaceutical | Wastewater treatment | Cationic |
| Brewing and distillery | Wastewater treatment | Cationic |
| Textile and dyeing | Wastewater treatment | Cationic |
| Textile and dyeing | Textile sizing | Anionic or nonionic |
| Leather and tannery | Wastewater treatment | Cationic |
| Oil refinery | Wastewater treatment | Cationic |
| Mining | Wastewater treatment | Anionic |
| Mining | Tailings concentration | Anionic |
| Industrial wastewater (ETP) | Biological sludge | Cationic |
| Industrial wastewater (ETP) | Physical and chemical treatment | Anionic |
| Industrial wastewater (ETP) | Sludge dewatering | Cationic |
| Municipal wastewater | Primary sludge treatment | Cationic |
| Municipal wastewater | Secondary sludge treatment | Cationic |
| Municipal wastewater | Sludge dewatering | Cationic |
| Municipal wastewater | Phosphate removal | Cationic |
| Oil extraction | Tertiary oil recovery (EOR) | Anionic |
| Oil extraction | Drilling fluid treatment | Anionic |
| Oil extraction | Water shut-off | Anionic |
| Steel industry | Wastewater treatment | Anionic |
| Paper making | Retention of fillers and fibres | Anionic and cationic |
| Paper making | Paper strength | Anionic and cationic |
| Paper making | Wastewater treatment | Anionic |
| Coal washing | Concentration and filtration | Anionic |
| Coal washing | Slime settling | Anionic |
| Coal washing | Wastewater treatment | Anionic |
| Plastics industry | Wastewater treatment | Cationic |
| Chemical industry | Wastewater treatment | Cationic |
| Sewage treatment plants (STP) | Wastewater treatment | Cationic |
| Slaughterhouse | Wastewater treatment | Cationic |
Why Sunfloc
Manufactured by us, backed by our own name
Sunfloc is sold under Suraj Chemicals' own Sun Brand, developed from years of on-site experience of what water-treatment users need, with one supplier and one set of documents.
Documents with every grade
A specification sheet and an SDS are available to download for each grade, with no waiting on an email.
Supplied from Chennai
ISO 9001:2015 certified, with pan-India dispatch from Chennai. Bulk quantities and other pack sizes are available on request.
Sunfloc questions, answered
Who makes Sunfloc?
Sunfloc polyelectrolytes are manufactured by Suraj Chemicals, Chennai. Sunfloc is part of the company's own Sun Brand range of water-treatment chemicals.
What is the difference between the HQ and MQ grades?
HQ grades are specified in more detail: total solids, residual acrylamide, insolubles, molecular weight, charge density, particle size, solution viscosity and recommended working concentration. MQ grades are specified on bulk density, pH and maximum use concentration. Both anionic and cationic types are available in each. A jar test on your own water or slurry confirms grade and dose.
What is the shelf life of Sunfloc?
24 months for all four grades, stored sealed at 0–35 °C away from moisture and direct sunlight in the original unopened pack.
What is Sunfloc used for?
As a flocculant in mineral processing, municipal and industrial water treatment, paper and textile applications.
Can I download the specification sheet and SDS?
Yes. Each Sunfloc grade has its own specification sheet and SDS (MSDS) to download from its product page or from the quality and documents page.
What pack sizes are available?
HQ grades (Anionic HQ and Cationic HQ) come in 25 kg bags and MQ grades (Anionic MQ and Cationic MQ) in 10 kg bags. Contact us for bulk quantities.
Take the range with you
Two free downloads for your plant file: the Sun Brand catalogue with every grade's specification, and a technical handbook covering grade choice, dosing, jar testing and troubleshooting.
Not sure which grade suits your water?
Send us a one-litre sample or describe your process. We test it in our lab free of charge and recommend a grade and starting dose.
Sunfloc by city and charge
Pick your city for local notes on anionic or cationic polyelectrolyte.