What is pu stone?
 2023/12/08 | View:580
  • What Is Pu Stone?

We first analyze its original components. The Chinese interpretation of PU is polyurethane, the full name of polyurethane, which is the general name of macromolecular compounds containing repeating carbamate groups on the main chain. It is composed of organic diisocyanates. Polyisocyanate and dihydroxy or polyhydroxy compound polyaddition to form polyurethane material, PU stone is very versatile and can replace rubber, plastic, nylon and other products.

  • What Kinds of Products Are There in Pu Stone?

All cultural stones have the shape of PU stone, such as the great wall stone, tile board, flowing water stone, etc. in our traditional concept, in addition to the more distinctive concrete cement board, mushroom stone.


The most distinctive style is the stone skin, which is designed with uneven stone shapes. We all know that the comprehensive cost of the original ecological rubble is very high. In addition to the material itself, it is also necessary to build a steel frame structure during construction, which consumes huge manpower and material resources. In some areas with high floor heights, there are still certain safety hazards.

Then, PU stone has become the preferred substitute at this time. The size of the great wall stone, flowing water stone and other conventional models ranges from 1115 to 1200mm in length and 180 to 310mm in width. The conventional sizes of concrete cement board and mushroom stone are as follows: 1200*600mm, 1200*450mm, the conventional sizes of stone skin are2400*800mm, 2400*300mm, 1200*600mm.

What Are the Characteristics of Pu Stone?

From the perspective of raw materials, PU stone is more like a new cross-border material, applying well-known materials to the decoration materials that restore the real stone. In terms of craftsmanship, the raw materials are pressed through the mold, and at the same time, the color is applied in the mold. Usually, 2-4 sets of molds will be developed for the PU stone of the same appearance. To achieve the effect, the surface is protected by spraying with water-based environmental protection paint for exterior wall waterproofing.

1. Simulation appearance

The product mold of PU stone is finely polished according to the real stone, and with special processing, the appearance of the product is realistic and delicate, which is indistinguishable from the real stone.

2. Long lasting

PU stone has a long service life and saves costs. The PU stone is composed of polymer materials and sprayed with multiple layers of high-strength coatings to make it resistant to acid, sunscreen, and ultraviolet rays, and to last longer.

3. Excellent temperature resistance

The temperature resistance of PU stone is minus 20 degrees – high temperature 120 degrees.

4. Environmentally friendly and pollution-free

Polyurethane products are non-polluting, non-toxic and tasteless. Due to the properties of the raw materials, the synthesis of PU stone does not add too many artificial materials.

5. Keep warm function

PU stone integrates the advantages of an external thermal insulation system and has thermal insulation function.

6. Easy to install

The installation of PU stone does not require high technical requirements for construction personnel, and non-professionals can also construct according to the drawings. PU stone can be used on almost any dry flat substrate indoors, and the direct installation time and the time period required for the entire project are far less than the installation time of traditional cultural stone products. PU stone products are designed with an inner card structure, with tongue edges, full grooves and reserved seams. Most of the installation work does not require caulking, and can be installed directly with screws and gun nails.


7. Novel appearance

The PU style can be adapted to random designs, with strong texture and various shapes, and can be customized according to special requirements.

8. Firm and safe

PU stone adopts prefabricated installation or matching glue to bond to the wall, with high safety factor.

9. Water-proof

PU stone plus a layer of self-developed coating, with waterproof and flame retardant functions.

10. Lightweight

PU stone is made of PU as the main material, and anti-corrosion polymer materials are added, and the weight per square meter is only 6 kg. Since the PU stone is made of high-tech materials, it is light in weight and does not require the cooperation of other machinery, and can be installed by a single person.

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