What is super absorbent polymer (SAP) ?

SAP is a new functional  material with good water absorption and water holding capacity.

We can use it absorbing, retaining or blocking liquid – SAP can absorb water up to hundreds times of its own weight and turn to water gel.

As a Eco-friendly material, it is totally non-toxic, harmless and nonpolluting.

Super absorbent polymer for agriculture

SOCO Agriculture grade SAP just like a “Mini-reservoir”: absorb the water when it is raining and release water back when it is dry. 

It can:

-improve seed germination & emergence, give plants an early, health start;

-contains Potassium 18.3% and release the fertilizer efficiency slowly;

-save the irrigation and improve the soil water holding capacity 85% (for sand);

– increase crops and fruit yield 70% (for melon planting in California).

How it works

Agriculture grade SAP consists of a set of polymeric chains that are parallel to each other and regularly linked to each other by cross-linking agents, thus forming a network.

When water comes into contact with one of these chains, it is drawn into the molecule by osmosis. Water rapidly migrates into the interior of the polymer network where it is stored. That’s how SAP powder turns to water gel.

As this water gel’s absorption ability is bigger than soil but less than roots of plants, the absorbed water by SAP will be released to plants when it is dry.

Tips: the specific retention of agriculture SAP is 1.3-1.4 MPa and the specific retention of roots is about 1.6-1.7 MPa.

Product Test

Water Holding Capacity Test

Soil: 500 ml; Water: 750 ml; soco SAP: 5 grams

Test Details

Laboratory Test ( wilting point )

Mainly Applications

Common plants and crops

15 to 30 kg per Hectare dosage, along with seeds hole application or ditch application to the soil around the seed, the seed germination rate can effectively improve and promote seedling growth. Gets success planting corn in the U.S, pature in arid area of Inner Mongolia, potatoes grown in Cape Verde Africa, and melon yield increase more than 70%.

Seed coating

Seed coating use SAP should be fine particle size of 0.3 mm or less, after SAP coating the seed emergence quickly, strong and good disease resistance, this is the easy available way use SAP to plants in drought area, which also with small quantity, low cost and good performance.

Gardening, Horticulture and landscape

SAP is ideal for mixing soil matrix, for indoor and outdoor pots, planters, window boxes, balconies, terraces, roofs, hanging, gardens and city landscape. Planting shrub, flower, grass, vegetables are available. Using SAP can bring water-saving, labor saving, time-saving benefits and reduce the drought or wilting risk causing by long time no watering the plants, longer the green time and the blossom period.

Lawn and Golf course

Application in golf and lawn can save about 50%-70% water, Reduce the cost of maintenance, Save about 30%-50% fertilizer. Lawn grows faster, healthier, and the green last longer, less pollution caused by the loss of fertilizer.


Using 10-20g SAP can double the survival rate of young trees when planting tree seedlings (bare root).

For adult deciduous fruit trees, put SAP with organic fertilizer, taken with a ring groove or furrow in the root area. The dosage is up on the soil condition, tree size and the ditching situation, should generally be 0.3% of the backfill soil and fertilizer.

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