The unique porosity provides a large surface area with an open cell structure. Therefore, the natural cellulose sponge is able to absorb 20 times its own dry weight of water and retain this in its pore structure. The cellulose sponge will retain the liquid until this capacity is reached. This feature can also be seen with other fluids such as motor oil, petroleum, gasoline, and also dilute acid (e. g. formic acid or nitric acid).
Sponge can be compressed keeping 100% of its characteristics. Only when it comes into contact with water it expands to full size. Compression can be achieved in dry state only. When it’s wet, the material is elastic.
Spontex sponge is one of the most resistant sponge on the market. Its tensile strength is regularly controlled during production. It is a huge advantage compared to cotton cloths, non-woven cloths and paper wipes.
For decades the cleaning properties of SPONTEX cellulose sponges are well known all over the world. The unique external skin makes the sponge tight and rigid.
Our cellulose sponge material is 100% biodegradable.
Our sponge in dry condition has been proved to be hypoallergenic. We can produce sponges without bleach. Although we haven’t gone through the process of certification ourselves, Spontex sponges are used by customers in medical products of class II and III.
Chemical analysis has shown a good stability with several diluted acids and bases.
In humid conditions the Electrical conductivity of natural cellulose sponge is outstanding. This feature is often used in electro therapy.
Combustibility & temperature resistance:
Cellulose sponge material is flammable although combustibility rates can vary with impregnated fluids. Thermographic analysis with cellulose shows that sponge starts to burn away at more than 300 °C.
Cellulose sponge is able to filter gas and liquids from some impurities, depending on the material.
Spontex sponge can be sterilized either by gamma radiation, autoclave or ETO gas.
Our cellulose sponge material is machine washable up to 95°C with detergent.
Warehousing and Transportation:
In their compressed state cellulose sponges have the perfect requirements for warehousing and transportation. They are light weight and take less space, fantastic properties for low transportation and warehousing costs.