At the primary stage of building plants, CCEWOOL already began to invest in Italian imported production equipment of international production standards. The rock wool production line has 6 t/h in capacity; surfaces can be overlaid with paper, glass fabric, or aluminum foil. All the raw materials adopt fully automatic batching equipment. Products are produced in accordance with EU EG standards by an advanced four-roller centrifuge to form high-speed centrifugal fiber. Products are then packaged by automatic heat-shrink packaging machines with the use of heat-shrink film that has good penetration resistance and shrinkage. Every step of production has reached the standard of an international top brand in the rock wool field.

CCEWOOL rock wool takes high-quality natural rocks, such as basalt and dolomite, as the main raw materials. The raw materials are melted in the cupola at a high temperature of about 1500 °C and then centrifuged into fibers at a high speed by a four-roll centrifuge. Meanwhile, a small amount of phenol resin with water repellent and emulsified oil is sprayed at the surface of the fabric. Under the action of negative pressure air, the newly formed rock wool fibers are quickly accumulated into felt. Through pendulum, pleating, pressurizing, and curing, the felt is processed into rock wool boards, rock wool felt or rock wool shell, etc. according to the requirement of customers.

CCEWOOL rock wool is free of asbestos and environmentally harmful substances, such as CFCs, HCFCs and HFCs, during the production process; thus, CCEWOOL rock wool does not have detrimental effects on human health, nor does it increase the risk of cancer.

CCEWOOL high-quality rock wool selects top natural rocks as the raw materials, of which Basal, one of the most abundant resources on earth, takes up over 80%.

CCEWOOL rock wool is not only renewable and sustainable, but also is outstanding in energy conservation of industrial cupolas. It is estimated that the use of every m3 of rock wool as insulation material in industrial thermal facilities can save energy up to 2500 kcal/hour, equivalent to three tons of standard coal every year. Also, at least one ton of petroleum can be saved by using one ton of rock wool insulation in buildings.

In addition, its great durability in fire protection and insulation can provide lifelong protection for buildings and for people from noise and fire.

One

Resisting to high temperatures, effectively reducing maintenance costs, and increasing production efficiency

CCEWOOL high-quality rock wool fibers have a softening point of 900-1000 °C. By using special formula and mature production techniques, they will not change at 650 °C for a long time. Moreover, although the fibers will shrink at a high temperature, their special fiber structure can still ensure the thickness of insulation under the condition of mechanical vibration; therefore, the surface of the thermal equipment does not have hot spots or super-temperature on the surface, which avoids insulation failures, effectively reduces the direct costs of downtime maintenance, and increases production efficiency. However, when low-quality rock wool’s working temperature exceeds 650 °C, the cooling process is getting slow, which causes the internal structural transformation density to decrease from 3.28 to 2.97 and the volume to expand by about 10%, leading the low-quality rock wool to be powdered and disintegrated.

two

The low thermal conductivity can effectively protect the heat-concentrated parts of equipment, which saves energy and reduces production and operation costs

The thermal conductivity of CCEWOOL high-quality rock wool does not vary with time. The uniformity of microporous structure and the content with extremely low slag keep its thermal conductivity low at high temperatures. Its superior thermal insulation performance can protect the highly heat-concentrated parts of equipment, which can reduce the thickness of the insulation layer while reaching the same energy efficiency; and thereby further reducing production and operation costs. Reversely, the thermal conductivity of low-quality rock wool does not vary with density, while the thermal resistance is proportional to its thickness. Therefore, it can be seen the compression caused by the load, the compression creep under the long-term load, and the sinking under the long-term use will cause decreases in thermal resistance.

three

High corrosion resistance causes no corrosion to metal equipment or pipelines and helps reduce maintenance and operation costs

CCEWOOL high-quality rock wool is made from superior raw materials and formula, which can effectively prevent the entry of harmful ions, such as corrosive sulfur and chlorine. As its pH value is strictly controlled between 7.0-10.5, and it is free from corrosive ions, such as fluorine and chlorine, there is no corrosion to metal equipment, pipelines, etc., which can greatly reduce the cost of post-maintenance and the loss caused by downtime.
One of the main functions of blast furnaces in smelting is desulfurization to prevent brittleness of iron. The removed sulphur remains in the blast furnace slag in the form of CaS and then enters low-quality rock wool, which takes up about 5%. In a high humid environment, CaS will decompose into Ca(OH)2 and H2S when exposed to water. Ca(OH)2 makes water alkaline and reduces the water resistance of low-quality rock wool. Moreover, H2S gas can be dissolved in water to form hydrogen sulphric acid, which will corrode when in contact with metal.

four

Excellent water repellency ensures the safety and durability of the thermal insulation system in humidity

CCEWOOL high-quality rock wool crystallization zone is CS-C2AS-C2S (wollastonite-aluminum stellite-alkaline feldspar), which does not have hydraulic characteristics, and it shows little change when in contact with water, so it has great water resistance. At the same time, with German-imported water repellent, this unique production process leads to rock wool’s excellent water repellency rate at over 99%. However, the low-quality rock wool crystallization zone is CS-C2AS-CAS2 (wollastonite-aluminum stellite-dicalcium silicate). The hydrated reaction of silicate hydrate with water during the production process can result in the degradation of low-quality rock wool fibers’ stability in humidity and their greatly shortened service life cycle.

Five

Outstanding sound insulation can effectively prevent sound penetration and reduce production and operation costs under the same effects

CCEWOOL high-quality rock wool is made from superior raw materials and formula, so the fiber distribution is more even, and the surface of products is porous. The internal high porosity makes our products a great porous sound absorbing material. The sound absorption performance is stable, which produces excellent effects. In the case of achieving the same sound absorption effects, the thickness of the insulation layer can be effectively reduced; thereby, the production and operation costs can be reduced, too. Our products are ideal for sound insulation in the construction sector or industrial plants and equipment. Reversely, the sound absorption and insulation effects of low-quality rock wool often require it to be hollow, punched, and its density to be reduced, which will significantly degrade the strength of low-quality rock wool, resulting in breakage during lifting.

six

Sustainability. Its excellent durability and stability ensure cost savings of products

CCEWOOL high-quality rock wool is a sustainable product. It selects top natural rocks as raw materials, which is a sustainable natural resource. CCEWOOL rock wool itself is produced by sustainable resources through sustainable production; thus, CCEWOOL rock wool is a sustainable product because of its excellent durability and stability. Low-quality rock wool is an inorganic fiber made from industrial slag, such as blast furnace slag, phosphate slag, fly ash, etc. through re-melting and fibrillating. In view of raw materials, low-quality rock wool is not sustainable, and the cost of use will increase greatly. The acidity coefficient of low-quality rock wool is about 1.2, almost unable to surpass 1.3; therefore, it will take two to five years to be powdered. If it is used on the exterior walls, the walls will start to drum up after several years, and then crack and fall off.