Sun Brand water treatment, led by Sunfloc polyelectrolytes, from Suraj Chemicals.
The official home of Sun Brand water-treatment chemicals. Sunfloc anionic and cationic flocculants are the star of the range, alongside SunMac, SunDec, SunRedep and SunSPC pool chlorine. Pick a Sunfloc grade, watch it floc, then open its full specification.
- Ready stock in Chennai
- Dispatch in as little as 1 business day
- Spec sheet and MSDS for every grade
- Free jar-test support
Illustration of how polymer bridges fine particles. Real dose depends on your water; confirm with a jar test.
The Sun Brand range
Five product lines from Suraj Chemicals' own Sun Brand, each with a specification sheet and an SDS.

Sunfloc Polyelectrolytes
Anionic and cationic polyacrylamide flocculants in four grades, HQ and MQ. For ETPs, STPs, municipal and drinking water, sludge dewatering, paper, textile and mining.
See the four grades →
SunRedep SC10
Very high charge anionic anti-redeposition polymer. Near-neutral clear liquid in drums.

SunSPC
Speciality calcium hypochlorite made for swimming pools: 70% min available chlorine, no cyanuric acid, at least 35–40% cheaper than TCCA. 25 kg drum.
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.
One maker. Stock in hand. A jar test on your water.
What stands behind the range.
Made by Suraj Chemicals
Sunfloc is our own range, not a relabelled import. The company has supplied water-treatment chemicals from Chennai since 1999 and is ISO 9001:2015 certified.
In stock in Chennai
In-stock grades dispatched from Chennai in as little as one business day, pan-India. HQ grades in 25 kg bags, MQ grades in 10 kg bags.
Insured, protected stock
All Sun Brand stock is fully insured against natural calamities and other unforeseen risks, so the material you order is protected until the day it ships.
Grade and dose confirmed on your sample
Send a litre of your water or slurry. We run the jar test and tell you which grade to use and where to start dosing.
Stock in hand, in Chennai
Stock is held in Chennai, off the floor and ready to dispatch across India. In-stock grades can ship in as little as one business day.



Where Sunfloc is used
Each page covers where the polymer sits in the process, which charge to choose and how to start dosing.
Paper, textile and mineral processing
Flocculation and settling in process and effluent streams.
Read more →Size your polymer order in a minute
Enter your flow and dose. Get kilograms per day, the dosing-pump rate, how to make up the solution and the cost per litre treated. Free, no sign-up.
Open the dosing calculatorStock Sunfloc in your region
We are looking for dealers and distributors across India who already serve effluent plants, water utilities and treatment contractors.
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