One Pack Stabilizer

A One Pack Stabilizer is a pack of additives added during the processing of PVC. The additives are a combination of various chemicals. The PVC molecule is unstable to heat and light hence to process PVC, it has to be stabilised against the action of Heat required at processing temperatures. That is the reason for using One Pack Stabilizer. This One Pack has helped manufactures to just use one chemical rather than using multiple chemicals like DBLS, TBLS, LS etc traditionally being used.  One Pack Stabilizers play important roles during processing as well as during the service life of the product to which they are added.

One Pack Stabilizer available at SNG Microns Private Limited

S. No. Type Form
1 Leads Flex, Powder
2 Ca – Zn Powder
3 Tins Liquid

Form of One Pack Stabilizers

Lubricated Non-Lubricated

Non-Lubricated One Pack Stabilizers are high performance stabilizers that are specially designed for optimum performance in PVC Pipe and fittings. It come in form of Flex or Powder.

Type of One Pack Stabilizers



Lead Based Calcium, Zinc, Barium, Tins, Metallic Stearates, etc.

Lead Based One Pack Stabilizers
Lead Based One Pack Stabilizers that are metal complexes together with Stearates and Lubricants that are produced in solid form and most popular among PVC Pipe and Fittings manufactures. It has major advantages like high heat resistance and low cost.

Non-Toxic One Pack Stabilizers
Non-Toxic One Pack Stabilizers are based on Calcium, Zinc, and Barium or other chemicals that are blended with co-stabilizers and lubricants to make the product heavy metal free. However, currently available Non-Toxic One Pack Stabilizer in market has moderate heat resistance because of this the dosages are added compare to lead based stabilizer hence cost become higher for manufactures of PVC Pipe and fittings.

How to choose One pack stabilizer
The correct choice of stabilisers for the target application is best done in consultation with the stabilizer supplier and technical experts, However, as a general guideline the below given table may be useful.

PVC One pack stabilizer application areas


Type Heat Stability Main Applications Not recommended for
Leads Very Good Cables, Pipes & Fittings, Sleeves, Profiles Clear Application. Can be toxic. Cheapest.
Tins Best Transparent tubings and sheeting, High quality Pipes, Medical industry Causes sulphide staining with Leads. Costliest Stabiliser.
Cd – Zn Moderate ROHS Cables, Non-Toxic. Pipes and Extrusions For high heat history
Ca – Zn Moderate ROHS Cables, Non-Toxic. Pipes and Extrusions For high heat history
Ba- Cd Good Leather Cloth, Calendared products, Footwear Non-Toxic applications
Cd – Zn Moderate Foamed Leather Cloth For high heat history
Metallic Stearates Low Co-stabilisers with lubricating action Sole stabilizer

Newer families of heat Stabilisers are being researched, developed and offered with the background of environments contamination concerns. Organic Stabilisers and Calcium Zincs are in the forefront of this trend and leading the way. We already sell non-toxic one pack stabilizers.

Lead stabilisers: Because of its relatively lower cost and strong Stabilisation action, Lead stabilisers have historically been the most popular, however from 1st April 2022, lead base stabilizer is banned / restricted in many PVC Pipe and other plastic application by Government of India. Lead stabilisers consist of TBLS, DBLS, LS and few other additives.

How does the produced quality is different in PVC Pipe but Lead percentage (%) is same of different one pack stabilizer?
The one pack stabilizer is made of various chemicals and minerals, like Calcium Carbonate, Stearic Acid, Lead etc, just lead percentage does not signify quality of products, even lead is of better and worst quality, same with calcium carbonate, stearic acid and other ingredients. Hence quality of one pack stabilizer depend of raw materials being used in manufacturing of one pack stabilizer not just lead percentage.

Calcium- Zinc One Packs stabilizer
With the India moving away from Lead stabilizer along with world to control environments contamination and health. Calcium- Zinc based One pack stabilizer are becoming prominent for manufacturing Lead Free Pipes and where ROHS requirements are to be met as per BIS (Bureau of Indian Standards).

The lubrication systems in Ca-Zn are quite complex for boosting the efficiency, so many of the Calcium- Zinc grades are available as one packs and not individual components at present in market in India unlike lead based one pack stabilizer where DBLS, TBLS, LS are available individually.

Calcium- Zinc Stabilizers mainly consist of Calcium Stearate, Zinc Stearate, organic and inorganic non-toxic co-stabilizers, and internal and external lubricant.

Our Calcium Zinc stabilizers provide initial colour sufficient for PVC processing and our stabilizers are used to give excellent whiteness and long-term stability.

Calcium Stearate (CS)
Calcium Stearate (CS) is the most common non-Lead stabiliser. However, its stabilising power is quite low and is more viewed as a very effective Internal Lubricant, playing a major role in Lubrication at the die head for smooth extrusion and finish. Hence currently CS is not being used as stabilizer rather it is being used for smoother the extrusion and other benefits.

One Packs stabilisersTins
The other major stabilizer system is with Tins, very popular in the Americas, as they were very effective with single screw extruders, which was the norm there before the Americas also switched over to Twin screw. Tins One Packs stabilisers mostly being used in CPVC Pipes & Fittings, PVC Pipes & Fittings, PVC Films (Calendaring Film, Shrink Film, Rigid Film, Short Film), PVC Leather Cloth, PVC Hose Pipes, PVC Garden Pipes, PVC Windows & Door Profiles, Medical Tubing, Blister Tray (Food Grade), PVC Toys among others.

Top Global manufactures of One Packs stabilizer 

Baerlocher GmbH Arkema SA
Adeka Corporation Songwon Industrial Company Limited
Galata Chemicals Pau Tai Industrial Corporation
Reagens SPA Akzonobel N.V.
BASF SE Clariant AG
Addivant USA, LLC. Akcros Chemicals Ltd

Major Market Players in Eastern India of One Packs stabilizer
Goldstab Organic, Baerlocher, Pondy oxide & chemicals, Faith Industries, Balasore Chemicals, MLA group, Shital industries among others.

Distribution System or buying or availability of One Packs stabilisers
In India, generally all the manufactures have appointed their authorised distributor for every state / region. Hence for buying One Packs stabilisers of particular brand, customers need to approach the designated distributor. All distributors have different terms and conditions. The quality of One Packs stabilizer varies among players as the one who invest most on R&D are able to produce best One Packs stabilizer.

Why to buy from SNG Microns Private Limited
We offer an extensive portfolio of one pack of PVC heat stabilizers for a wide range of applications like Pipes, Profiles, Fittings and other industries with an emphasis on high-performance. Our Calcium-Zinc stabilizers are performance-oriented and particularly provide excellent long-term retention of colour, outstanding mechanical properties and a high level of the weathering resistance. We are one of authorized distributor of the of the most leading manufactures of India.



Calcium Carbonate

Calcium carbonate, or CaCO3, comprises more than 4% of the earth’s crust and is found throughout the world.  Its most common natural forms are chalk, limestone, and marble. Calcium carbonate appears as white, odourless powder or colourless crystals. Calcium carbonate (CaCO3) is the most widely used filler in polymer formulations. As a filler, calcium carbonate allows cost reduction and improved mechanical properties. Depending on their origin and history of formation, and their impurities, the calcium carbonates have different properties. Three major technological processes are used in the production of calcium carbonate fillers: milling, precipitation, and coating.

Type of Calcium Carbonate

Ground calcium carbonate (GCC) Activated Calcium Carbonate (ACC) Precipitated Calcium Carbonate (PCC)

GCC: Ground calcium carbonate (GCC) is a chemical compound with the formula CaCO3. GCC is produced by mechanical grinding of the raw material, limestone or calcite ore containing CaCO3 as major component. Then it is produced to required size. No chemical change is involved in the process.

ACC: Activated Calcium Carbonate (ACC) is produced by surface coating the Precipitated Calcium Carbonate slurry with Fatty Acids (Stearic Acid) and Titnate Coupling Agent then filtering and drying of the coated PCC slurry to produce ACC powder.

PCC: Precipitated Calcium Carbonate (PCC) involves following chemical changes.


Limestone is heated at about 1000-degree centigrade temperature in a Kiln to produce quick lime





The quick lime pebbles are mixed with water in a calculated ratio to form hydrated lime slurry, called milk of lime





Milk of lime slurry is then treated with CO2 evolved during calcination process and convert back to CaCO3




Filtration and Drying

The CaCO3 formed is in slurry form which is then filtered and dried to powder form

CaCO3 Heat → CaO(Lime/quick lime) + CO2 2CaO + 2H2O → 2Ca(OH)2 Ca(OH)2 + CO2 → CaCO3 + H2O Precipitated Calcium Carbonate (PCC)

The size and shape of PCC is controlled and other impurities are removed during the process. Hence PCC has more advanced applications as compared to GCC. Precipitated calcium carbonate (PCC) is used in applications where, for example, higher brightness or a narrow particle size distribution is required. PCC is finer particle size distribution, and hence is more suitable in extremely smooth/high gloss formulations.

Application of Calcium Carbonate
There are usages across various industries; plastics, paper, rubbers, paints, inks also in pharmaceutics, cosmetics, construction materials, and asphalts and as a nutritional supplement in animal foods among other industries.

Grades of SNG Microns Private Limited

Grade Name Origin Country Applications
SM001/ SM002/ SM003 Vietnam Paint, CPVC
SM004 / 4C Vietnam, Egypt, Malysia Plastic, Paint
SM010 Vietnam, Egypt, Malysia Plastic, Paint
PCC100 Vietnam, India Plastic, Paper, Profile
ACC India Plastic, Profile
SM006 / SM006C/ SM203/203C/ SM208P/ SM775/ SM775C India Plastic, Masterbatch, Paint, Animal Feed, Others

Note: “C” represents coated material with stearic acid. Connect with us for technical data sheet (TDS) of products.

Is customization of Calcium Carbonate powder possible by SNG Microns Pvt Ltd.
Yes, we understand the requirements of various industries and their application, hence we have infrastructure and technical expertise to customize the materials as per requirements of our customers.

Production process of Calcium Carbonate
Calcium carbonate, as it is used for industrial purposes, is extracted by mining or quarrying.  Pure calcium carbonate can be produced from marble, or it can be prepared by passing carbon dioxide into a solution of calcium hydroxide. There is various design of machine for producing powder, which severely impact the quality of calcium carbonate powder.

How does crushing machine impact the quality of Calcium Carbonate Powder Or role of various type of machine in quality of produced of Caco3 powder

Type of Machine

Raymond Mill Ball Mill Hosokawa Ball Mill Hydraulic machine

Raymond mill: In the grinding mill equipment, the production cost of Raymond mill is the lowest. Stereo structure save production line covers an area. Raymond grinding fineness is producing up-to 500 mesh size.

Ball mill: A ball mill is a type of grinder used to grind and blend ore material into nano size using different sized balls. The working principle is; impact and attrition. Size reduction take place as the ball drops from near the top of a rotating hollow cylindrical shell. The nanostructure size can be varied by varying the number and size of balls. Grinding elements in ball mills travel at different velocities. Therefore, collision force, direction and kinetic energy between two or more elements vary greatly within the ball charge.

China Origin mill: In Vietnam, most of manufactures are using Reymond mill with slight modification, that give the result similar to Raymond mill.

Hosokawa Alpine mill: For over 120 years now, Hosokawa Alpine has been designing and building process technological machines and systems for processing powders, granules and bulk materials as well as for manifold recycling jobs. The company has a comprehensive product portfolio – from mills and shredders to classifiers. Machine are design in such a way that its produce best of best quality powder in term of particle size and shape of particles.

Hydraulic mill:

Vertical grinding machines best so far, especially for finer mesh size of powder.

Comparison of Various Machine

  Raymond mill Ball mill China Origin mill  Hosokawa Alpine mill Hydraulic mill 
Mesh Size
Particle Distribution Highly distributed Even Highly distributed More even Highly even
Shape of Particle Ovel Round Ovel Round Round
Energy Consumption Low High Low Very High Very High
Production Cost Low High Low Very High Very High

Which Calcium Carbonate is suitable for us? What is difference between Dolomite, Calcite, Limestone Powder, Calcium Carbonate

Calcite mainly contains calcium carbonate and dolomite mainly contains calcium magnesium carbonate. Dolomite differs from calcite because of the presence of magnesium. Calcite reacts quickly with acids and produce carbon dioxide bubbles. But dolomite is weakly reacting with acids producing bubbles very slowly.

As limestone, calcium carbonate is a biogenic rock, and is more compacted than chalk. As marble, calcium carbonate is a coarse-crystalline, metamorphic rock, which is formed when chalk or limestone is recrystallised under conditions of high temperature and pressure. In perspective of PVC Pipe and fittings both the limestone powder and calcium carbonate powder are same. In case of limestone powder materials/ powder is always natural. Calcium carbonate could be natural as well as coated.

Imported Calcium Carbonate Vs Indian Calcium Carbonate
Indian mines lack purity (Caco3 %), whiteness and Brightness due to which in PVC pipe and Fittings and Plastic industries in India calcium carbonate powder of Vietnam, Egypt, Malysia origin is preferred by plastic manufactures. Even in paint and masterbatch industries the imported calcium carbonate powder gives better results compare to Indian counterpart.

  India Malysia Egypt Vietnam
Purity Low High High Very High
Whiteness Low High High Very High
Brightness Low High High Very High
Impurity High Low Low Very Low
Hardness High Low Low High

Coated Calcium Carbonate Vs Uncoated / Natural Calcium Carbonate
When the natural calcium carbonate powder is coated with Fatty Acids (Stearic Acid) or Zinc Stearate or Titanium Dioxide, the powder become coated. Generally, in market and PVC Pipe and fittings industries material coated with stearic acid is available and preferred by manufactures due to cost advantages and round the clock availability.

However, when manufactures are using calcium carbonate origin of Vietnam, Malysia or Egypt they should not be worrying about uncoated or natural calcium carbonate powder as all of them have very high percentages of CaCO3, means highly pure; among all for PVC Pipe and fittings, we suggest materials of Vietnam origin due to better physical and chemicals property of materials.

Which Calcium Carbonate is suitable for PVC Pipe & Fittings? / How calcium carbonate impact quality of PVC Pipe and Fittings
Calcium carbonate powder play vital role in PVC Pipe and fittings, hence choosing the right quality is must. Even said that if you get the right quality of calcium carbonate powder and with right compounding, you can always succeed in your business of PVC Pipe and fittings. The quality of pipe & fittings gets impacted due to compromise on quality of materials, we at SNG Microns always suggest our customers to use better calcium carbonate powder, which in turns reduce the overall production cost.

Why to buy Calcium Carbonate from SNG Microns Private Limited
We, SNG Microns Pvt Ltd offers wide ranges of Calcium Carbonate. Kindly contact us for technical data sheet or to understand your requirements and suggests you the best grade available for those particular applications. We are one of largest importer of calcium carbonate in eastern India. Materials are available of Vietnam, Malysia, Egypt, and India origin.

PVC Resin

Polyvinyl chloride (PVC), often known as vinyl. It is a versatile, durable, affordable and recyclable plastic material used for a wide range of applications. PVC is one of the oldest synthetic materials, with the longest history in industrial production. Its discovery dates back to the 19th century by French physicist Henri Regnault and by the German Eugen Baumann. Today, PVC is the third largest-selling commodity plastic in the world, after polyethylene and polypropylene. Globally, the growth of the industry over the last 100 years has been spectacular. Production capacity has grown from a few thousand tons in the 1930s to over 50 million tons today.

PVC Production type or how to select PVC Resin or which PVC Resin to Buy

Carbide based PVC Resin is produced by acetylene of carbide and hydrogen chloride plus direct synthesis of vinyl chloride (VCM), ethylene-based PVC resin is obtained by ethylene chlorination. The molecular mass of Carbide based PVC resin is lower than ethylene-based PVC resin, and carbide-based PVC resin molecular mass distribution is wider than ethylene process PVC resin. Narrow mass can get better processing properties, the thermal stability, heat distortion temperature, electrical insulation, mechanical strength and aging resistance of PVC resin. Ethylene based PVC is purer than Carbide based PVC resin, so compare with two type PVC resin, Ethylene based PVC resin quality better than carbide-based PVC resin, ethylene based use less lubricants and impact modifier in producing PVC Pipe.

Source- Jiangxi Yuefeng Group Polymer Co. Ltd, Sophie 0086-15367852031


Application of Polyvinyl chloride (PVC)
PVC is a versatile material that offers numerous possible applications, these include; drainage pipe, water service pipe, window frames, medical devices, blood storage bags, cable and wire insulation, resilient flooring, roofing membranes, stationary, automotive interiors and seat coverings, fashion and footwear, packaging, cling film, credit cards, vinyl records, synthetic leather and other coated fabrics among others.


Manufactures of PVC

Top 10 PVC Manufacturers in the World by production capacity (in kt) are

S. No. Company Name Production Capacity in KT Country
1 Shin-Etsu Chemical Co., Ltd 3850 Japan
2 Formosa Plastics Corp 3300 Taiwan
3 Inovyn ChlorVinyls Limited 2500 United Kingdom
4 ChemChina 1950 China
5 Orbia (formerly Mexichem) 1800 Mexico
6 Westlake Chemical Corporation 1800 USA
7 OxyVinyls (Occidental Corp.) 1700 USA
8 CNSG Anhui Hong Sifang Co., Ltd 1500 China
9 LG Chem 1500 Korea
10 Axiall 1200 USA
The few other manufactures in Indian market are 
a Reliance Industries 750 India
b Chemplast Sanmar Ltd 270 India
c Finolex Industries Ltd 260 India
d DCW Ltd 90 India
e DCM Shriram 70 India
f China General Plastic Limited Taiwan
g Hanwha Solutions Chemical Korea
h Ocean Plastic Corp Taiwan
i Chang Chun Petrochemical Co., Ltd Taiwan
j Mitusbishi Corporation Japan
k Celanese Corporation USA
l DuPont USA
m SABIC Saudi Arabia

* List is not exhaustive, production capacity may vary

Scenario in India of Polyvinyl chloride (PVC)
Around 75% of PVC in India was consumed in the pipes and fittings sector. This is in stark contrast to the consumption pattern worldwide, where pipes and fittings account for only approx. 43% of the total. PVC applications in India other than Pipes & Fittings are still in the early stages and are primed for growth. This, along with the relatively low per capita PVC consumption in India, shows that future prospects for the Indian PVC processing industry are bright. Currently, most of the PVC produced in India is based on imported ethylene dichloride (EDC) or vinyl chloride monomer (VCM).

In India, PVC is almost always short- supplied, because of high dependence on import, importers are importing inferior processed quality of PVC as well; PVC produced by process of carbide process, which impact the PVC processing industry especially small and medium enterprises.

How to choose PVC for Pipe
One of the most critical parameters is K value, hence check the K Value of product, it must be between 65 to 67 for PVC Pipe applications. But K value in itself does not guarantee the quality of PVC, customer must check the production process, ethylene based processed PVC always gives better results. For application like Pipe fittings & Garden pipe K value should be in between 55 to 57.

Generally available imported PVC Resin Suspension Grade in Eastern India

Grade Name Brand Name Origin K Value Application
LS100H LG Chem Korea 67 Pipe, Profile
LS100E LG Chem Korea 67 Pipe, Profile
LS100S LG Chem Korea 66 Flexible Sheet, Leather Sheet, Wrap
S65D Formosa Taiwan 65-67 Rigid Pipe and Molding
S65 Formosa Taiwan 65-67 Intended for soft application
TH1000 (Rigid) TAIYO VINYL CORPORATION Japan 65.7−67.7 Pipes, Corrugated sheets, Window frames
TH1000 (Soft) TAIYO VINYL CORPORATION Japan 65.7−67.7 Flexible films, Food films, Hosepipes, Wires and Cables, Tape
H66 CGPC Taiwan 65-67 Pipe, profile
P-1000 Hanwha Korea 66 Pipe, profile
SG660 SCG Plastics Co., Ltd Thailand 66 Flexible sheet packaging


SP660 SCG Plastics Co., Ltd Thailand 65.50 Pipe, Door and window frame, Construction profile


Ocean Plastics Co., Ltd Taiwan 65-67 General rigid sheets and pipe, good for rigid

or flexible product

TK-1000 Shin-Etsu Chemical Co Japan 67 Rigid/ Flexible
TK-700 Shin-Etsu Chemical Co Japan 58 Flexible
SPVC 60S SABIC Saudi Arabia 60 calendaring, extrusion and thermoforming application
SPVC 67S SABIC Saudi Arabia 67 Rigid pipes (pressure and non-pressure), Corrugated tubes and conduits, Rigid profiles

Why to buy PVC Resin from SNG Microns Private Limited

We at SNG Microns Pvt Ltd, import superior quality of PVC; ethylene based processed PVC.  There are various advantages of ethylene based processed PVC in pipe and fittings industry as mentioned above. Our PVC business partners are located across the globe, we import from top manufactures of world. Connect with us know available grades for specific applications. Our Warehouse located at Kolkata, West Bengal and Patna, Bihar to served the North and East India.

Buy Quality assured PVC Resin from us.