What is Super Absorbent Polymer indeed? (including all the uses)

April 30, 2021

As a super absorbent polymer ( sodium polyacrylate & potassium polyacrylate ) factory founded in 2009, we think it's a responsibility to make a guide to purchasing this product.

This guide will be constantly updated and covers all the vital aspects that must know before purchasing. The corrections or suggestions are always welcome! You can easily contact us by leaving a message on our website.

Brief introduction

The origins of superabsorbent polymer chemistry trace back to the early 1960s when the U.S. Department of Agriculture developed the first superabsorbent polymer materials.

As a function polymer material, superabsorbent polymer (SAP) has a strong water-absorbing ability.

  • It can absorb hundreds of times its weight and lock water firmly.
  • After absorbing, SAP powder (or granule) will turn into water gel.

According to different usage, there are many types of superabsorbent polymers - sodium polyacrylate and potassium polyacrylate.

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SAP Quality Grade

SAP's main ingredients are sodium polyacrylate or potassium polyacrylate.

The grades of SAP as follows:

  • Improved SAP - Improved on some side like:
    • Starch-based SAP - The biodegradable type SAP;
    • Minerals based SAP (for plants) - Available in the soil for years;
    • SAP with an improved catalyst - High expansion ability (for water blocking of cable);
    • Cation type SAP - additive for concrete.
  • Common SAP
    • Potassium polyacrylate - mainly utilized in farming as a water-holding agent;
    • Sodium polyacrylate - generally utilized in industrial production, for example, Paper diaper, Sanitary pads, Ice pack, Air fresher, Expanding Rubber, and so forth.
  • Defective SAP
    • Recycled SAP: the SAP was utilized and reused;
    • Burnt SAP: the SAP was created in High-temperature.

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SAP For Plants

This sort of superabsorbent polymer is used for plants, it is an interesting superabsorbent granule, which acts to give increased moisture accessibility to plants.

Significant indicator as follows,

  • Absorbing limit in the soil;
  • Granular size;
  • The photolysis barrier;
  • Period of validity.

What can super absorbent polymer do for plants?

Farming grade SAP (potassium polyacrylate) can be broadly utilized in agribusiness, forest services, and planting, for example, soil water maintenance ability, seed covering, soil-less development, fake turf, and so forth.

-Improve seed germination and rise to give plants an early, sound beginning,
-Save the water system, increment harvests, and natural product yield,
-It contains Potassium, Phosphorus Nitrogen, and deliveries the compost proficiency gradually.

Usage for Farming

Application Procedures

  • Dry Application
    • Mix it with compost and soil uniformly and afterward apply the blend to the ground by utilizing a composting tool.
    • For the limited area (under 20 square meters), it is prescribed to apply physically.
    • Completely turn over the ground by utilizing a culturing machine (require it at the profundity of 20cm).
    • Flattening the ground.
    • Watering the ground.
  • Wet Application
    • Let SAP assimilate multiple times water, become gel structure.
    • Put into the planting wrinkle.
    • For the reserved zone (under 20 square meters), it is prescribed to apply physically.
    • Put surface soil all together before the plant.

For instance, in the cultivating of rain took care of sugar stick, huge increments in yield of approx. 25% are watched.

  • When replanting a field, placed SAP in the wrinkles where the stick shoots are put.
  • SAP might be applied simultaneously as a compost.
  • Cover the shoots with soil by earthing up.

Usage for Arboriculture

  • Dig a gap around multiple times the volume of the root framework.
  • Mix 1 to 2 kg of SAP for each m³ into the earth fill.
  • Place the root bundle of the plant at the base of the opening and fill in the gap with the treated soil. Ensure that the product is conveyed uniformly around the roots. At that point spread the surface with 5 cm of untreated soil to forestall corruption of the polymer by sunlight and stagnation of water on a shallow level.
  • Be particularly cautious not to put the unmixed dry item at the base of the gap. After hydration, the item would destabilize the plant.

Usage for Bare-root Dipping

  • Mix 1 kg of SAP in 150-200 liters of water. (Sums differ contingent upon the saltiness of the water)
  • Slowly pour in the item while mixing the water to acquire a dressing without unloading of particles.
  • Let the dressing wait for 15 minutes, the time required for SAP to arrive at its greatest ingestion. It is critical to get a dressing that will hold fast totally to the roots. The more extended the development time, the thicker the dressing will be, and the better it will stick to the roots.
  • A water-solvent nematocide and additionally fungicide may likewise be added to the planning to secure plants against nematode and parasitic assaults.

Usage for Flower Transport

SAP as the hydrogel might be set in fixed plastic pockets. When solidified, the pockets are frequently utilized in the vehicle of heat-sensitive plant items, for example, cut flowers. The hydrogel has incredible protection from heat burn and doesn't spill in the wake of defrosting.

Usage for Hydroseeding

The other favorable position of SAP is that it forestalls cellulose mulch from turning out to be hardpan during a drought. The mulch stays circulated air through and permits the seeds to grow rapidly. SAP additionally makes it conceivable to lessen the measure of mulch.

  • SAP must be added last to the hydroseeder tank, after different parts: seeds, composts, mulch, and so on.
  • Stir in any event 15 minutes before spreading.

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SAP For Hygiene Products

With its great properties of fluid retention and locking it has found extremely helpful application in items inclined to dampness like:

  • Diapers,
  • Sanitary napkins,
  • Nursing pads and
  • Pet pads.

Significant indicator as follows,

  • Absorbent rate;
  • Absorption under pressure and retention capacity after centrifugation;
  • Liquid Permeability;
  • Residual Monomer.

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SAP For Other Uses

As time passes, SAP is being utilized in an ever-increasing number of enterprises and applications because of its expanding ubiquity and productivity in water discouragement.

Some applications as follows,

Waterproofing cables

SAP exceptionally pines for the item to the extent the production of water-proof tapes and treatments for a wide range of cables are concerned; even, optical fiber cable use SAP. The degree and the speed of ingestion are very high as is the general swelling rate and its quantum of expansion after experiencing water.

Important indicator as follows,

  • Expansion stature;
  • Granular size.

Used in Cable

  • Professional-class powder,
  • Fast absorption,
  • Good stability to light, heat, acid, and alkali.

Used in water-blocking tape

  • Fine powder,
  • Fast absorption,
  • Well inflation under pressure
    ≥15mm/1 min
    ≥18mm/3 min
  • Good stability to light, heat, acid, and alkali.

Used in the water-blocking ointment

  • Fine powder with uniform size,
  • Well resistant to cold and high temperature,
  • Good stability to light, heat, acid, and alkali.

Ice Bags

Freshwater is aimed at the individual sheets of ice packs to initiate them; Superabsorbent Polymer in a flash beginning engrossing the water and changing over it to a Gel by putting them under new faucet water; in around 20 minutes time it apparently soaks up enough water to frame little pad molded Ice Cubes. They are currently prepared for use by setting in the cooler.

Significant indicator as follows,

  • Hydration time;
  • Price;
  • Granular size.

Inflatable anti-flood sandbags

SAP has this exceptional application in Disaster Management where it is utilized in planning blockades which, when interacting with water, rapidly assimilate it and grow to frame an obstruction to the propelling water. In spite of the fact that we call them Sandbags, they really don't contain any sand; they are alleged in light of the fact that that is the manner by which they have been known generally.

These Sand-less Sandbags are minuscule in size and light in weight at first however they absorb the water to create a strong shape. They are a lot simpler to store and transport and occupy lesser room when unused.

Significant indicator as follows,

  • Absorbent rate;
  • The photolysis resistance.

Concrete protection

  • Its penetrability happens to be very low; it absolutely closes out the water content,
  • Due to its sinewy surface, it very well may be put away to shape a vertical hindrance,
  • Since it is a compelling sealant, it discovers application in Cement-based things.

Sewage Treatment

SAP is a cost-sparing option in contrast to other mass solidifiers, including Portland concrete, furnace dust, corn-cobs, sawdust, or other ware absorbents.

The one-of-a-kind attribute of SAP is its capacity to ingest water or natural liquids, discarded oil, and oppose bio-debasement while holding fluid under tension. This makes it an ideal settling vehicle for garbage removal in landfills.

Mechanical waste streams fluctuate by saltiness, temperature, and substance synthesis, so it's important to offer different grade polymers to coordinate the monetary and execution necessities for each modern cementing venture.


  • Chemically bonds with water and won't discharge fluid,
  • Minimizes squander volume on the grounds that run of the mill development is under 1%,
  • Mixes rapidly to improve productivity,
  • Reduce waste transportation and removal costs contrasted with other building agents.


In oil or gas, well drilling lost circulation happens when drilling liquid, referred to regularly as "mud", streams into at least one land arrangement as opposed to returning up the annulus. Lost dissemination can be a major issue during the boring of an oil well or gas well.

SAP Drilling Mud Additive which is another natural assurance item with great water-absorbable and swellable properties, can viably against lost dissemination.

What is lost circulation?

In oil or gas well drilling, lost circulation occurs when drilling fluid, known commonly as "mud", flows into one or more geological formations instead of returning up the annulus. Lost circulation can be a serious problem during the drilling of an oil well or gas well.


1. Blowout

If the amount of fluid in the wellbore drops due to lost circulation (or any other reason), hydrostatic pressure is reduced, which can allow gas or fluid which is under higher pressure than the reduced hydrostatic pressure to flow into the wellbore. An influx of gas or fluid into the wellbore, known as a" kick", can lead to a blowout.

2. Dry Drilling

Dry drilling occurs when fluid is completely lost from the wellbore without actual drilling coming to a stop. The effects of dry drilling range from as minor as destroying a bit too as serious as major damage to the wellbore requiring a new well to be drilled. Dry drilling can also cause severe damage to the drill string, including snapping the pipe, and the drilling rig itself.

Solution of lost circulation

Traditional Solution of lost circulation

There are some options are available when lost circulation occurs, depending on the severity: Increasing the viscosity of the fluid with bentonite or with the addition of other additives, which typically includes organic plant particles.

SAP Drilling Mud Additive - A better solution for lost circulation

It is a new environmental protection material with good water-absorbable, thickening property and swellable properties, can effectively against lost circulation.

Other Applications

It finds broad utilization in various explicit items because of its stunning properties; some of them might be recorded here:

  • As an added substance for functional covering in numerous particular applications,
  • As an added substance in Air cleansers,
  • For extending rubber prerequisites,
  • Absorption of wastewaters from businesses,
  • In the digging business for the catastrophe situation the board and typical drainages,
  • In certain beauty care products.

Because of its wonderful ability to act on dampness, SAP (Superabsorbent Polymer) is discovering more up-to-date purposes for which it is being utilized.

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