Sandwich Panel – COJIASTEEL https://www.cosasteel.com Sat, 14 Jan 2023 09:08:41 +0000 en-US hourly 1 https://wordpress.org/?v=6.3.2 https://www.cosasteel.com/wp-content/uploads/2018/05/cropped-COSAsteellogo-32x32.jpg Sandwich Panel – COJIASTEEL https://www.cosasteel.com 32 32 Glass Wool Sandwich Panel https://www.cosasteel.com/prod/glass-wool-sandwich-panel/ Wed, 03 Jun 2020 03:51:20 +0000 http://www.cosasteel.com/?post_type=prod&p=22153 Glass Wool Sandwich Panel

The Definition of Glass Wool Sandwich Panel:

The glass wool sandwich panel is composed of two layers of upper and lower color profile plates through the combination of keel and glass wool.

The Advantages of Glass Wool Sandwich Panel:

(1) The glass wool sandwich panel has a high closed cell rate and excellent energy-saving effect;

(2) Green environmental protection, no formaldehyde;

(3) One-time investment and continuous savings;

(4) Unique plug-in interface design, stronger ability to resist negative wind pressure;

(5) Various shapes, beautiful and elegant advantages: no cold bridge, high rigidity, good flatness, and glass wool A-grade non-combustible;

(6) The plug interface is tight and there is no heat conduction of the steel plate

(7) Polyurethane side seals on both sides block the core material from absorbing water and extend the service life;

(8) Unique connection port design, stronger ability to resist negative wind pressure;

(9) Good fireproof performance: It is suitable for the wall and roof of large public buildings, industrial plants and other buildings that require fireproofing.

The Specification of Glass Wool Sandwich Panel:

ProductGlass Wool Sandwich Panel
WidthWall panel: 950mm/1150mm Roof panel: 960mm
MaterialsFiber glass wool , Color steel sheet
StructureUpper and lower layer: Color steel sheet
Middle: Fiber glass wool
ThicknessColor steel sheet: 0.3-0.8mm
Fiber glass wool core: 50mm 75mm 100mm 120mm
Glass wool density40-80kgs/m3
Applicationvarious roofs and walls referring to the large size factory buildings,temporary house,dormitory, storages, exhibition halls, gymnasiums etc.
Fireproof rateB1 / B2
Compressive Strength200Kpa
PriceUS $12-16/ Square Meter
HS Code7210709000

The Application of Glass Wool Sandwich Panel:

  1. Industrial plant, warehouse
  2. Cold storage, box packaging
  3. Light steel house, original building mezzanine house
  4. Activity board room
  5. Various clean rooms, air-conditioned rooms, etc.
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EPS Sandwich Panel https://www.cosasteel.com/prod/eps-sandwich-panel/ Tue, 02 Jun 2020 06:05:21 +0000 http://www.cosasteel.com/?post_type=prod&p=22140 EPS Sandwich Panel

The Definition of the EPS Sandwich Panel:

The inner and outer sides of the EPS sandwich panel are glass steel plates, and the sandwich layer is made of polystyrene foam. The surface of the sandwich panel is smooth and clean, and dirt can be easily removed. The entire panel is brightly colored and has excellent gloss retention. There is a layer of gel coat with excellent performance on the surface of the glass steel plate, which has good chemical stability to the atmosphere, water and general concentration of acids, alkalis, salts, and other media; the surface has high smoothness, excellent gloss retention, discoloration, corrosion resistance, and anti Light and anti-aging.

The Advantages of EPS Sandwich Panel:

  1. With the analysis of scientific testing data, the heat resistance of the EPS sandwich panel is equivalent to a brick wall being 75CM in thickness.
  2. The sound insulation effect and heat insulation effect of the EPS sandwich panel are more significant than others.
  3. Adopting steel structure as edge enhances the strength of the panel itself, and can independently support 5 meters in length.
  4. The fireproof grade of the EPS sandwich panel material can reach the B2 level.
  5. It has a wide range of applications, such as roofing panels in construction projects and plant structures that require insulation. Specifically used in industrial plants, warehouses, exterior walls of the building materials and furniture market, roofs and partitions, meeting halls, building mezzanines, purification workshops, combined cold storage, mobile houses, toll stations, field operations, etc.
  6. It has the characteristics of thermal insulation, waterproof, fast construction, no need for decoration, lightweight and beautiful appearance.

The Specification of the EPS Sandwich Panel:

ProductEPS Sandwich Panel
Steel Thickness0.3-0.6mm
MaterialsEPS +Steel Sheet
Thickness60/75/90/100/120/150mm
Fireproof>4 Hours
Sound Proof35-42dB
Moistureproof<=10
LengthLess Than 12meters
EPS Density5-25kgs/M3
ApplicationExternal wall, Interior wall, floors, partition wall, roof, prefab house wall panel, fence and so on
PriceUS $3.8-10/ Meter
HS Code73089000

The Application of the EPS Sandwich Panel:

It is applied in thermal insulation / dry truck compartments, large-span structural roofs, walls, thermal insulation (or fire protection) workshops, purification workshops, high- and mid-range combination houses, container houses, etc.

 

FAQ:

What is EPS?

Expanded Polystyrene (EPS) is a light-weight polymer. It is made of polystyrene resin, adding foaming agent, while heating to soften with gas generated, and finally form a rigid closed-cell foam.

What are the deferences between PU Sandwich Panel, Rock Wool Sandwich Panel, and EPS Sandwich Panel?

1. Different fire protection grades: Rock wool sandwich panel is class A, EPS sandwich panel is class B3, PU sandwich panel is class B1.
2. Different thermal insulation performance: PU sandwich panel is the best among the three.
3. Different waterproof performance: PU sandwich panel and EPS sandwich panel are superior to rock wool in the three.
4. Different density: the bulk density of rock wool sandwich panel is generally 120KG/m3, EPS sandwich panel is generally 16KG/m3, PU sandwich panel is generally 40KG/m3.

Is EPS Sandwich Panel flammable?

EPS polystyrene panel itself is a flammable material, so it is not a fireproof material in terms of fire rating. So it is not at all A level or B1 level. The fire resistance grades of the EPS panel on the market are only B2 (flammable) and B3 (flammable).

The difference between eps fire resistance class A, B, and B1:

1. Fire prevention coefficient: Class A is non-combustible; Class B is divided into three classes, B1, B2, and B3 have different degrees of combustion.

2. Flammability: Class A flammability is zero; B1 is flame retardant, B2 is flammable, and B3 is flammable.

What is a SIP panel construction?

SIP construction is a kind of prefabricated house with a SIP panel and installed on site. SIP panel generally uses OSB as the panel and polyurethane PU as the core material; glass magnesium panel, cement fiberboard, and other materials can also be used as the panel, EPS, rock wool and other materials are thermal insulation materials. All pipelines in the SIP house are set in the wall or floor, which can effectively increase the use area and make the utilization rate as high as 85%~90%.

How thick is a SIP panel?

The thickness of the SIP panel can range from 4 inches to 12 inches (approximately from 10.16 cm to 30.48 cm).

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PU Sandwich Panel https://www.cosasteel.com/prod/pu-sandwich-panel/ Thu, 21 May 2020 08:50:12 +0000 http://www.cosasteel.com/?post_type=prod&p=22104 Definition:

The inner and outer sides of the PU sandwich panel are glass steel plates, and the rigid polyurethane foam of the sandwich layer is compounded by German vacuum technology and high pressure. The surface of the sandwich panel is smooth and clean, and dirt can be easily removed. The entire panel is brightly colored and has excellent gloss retention.

PU Sandwich Panel Specification:

ProductPU Sandwich Panel
Steel Sheet Thickness0.4-0.7mm
Core Material Thickness40mm 50mm 60mm 75mm 100mm 120mm 150mm 200mm
Density40kg/m3
Effective WidthWall:400-1120mm Roof panel: 1000mm
Length Less than 11.8m (container inner length)
Thermal Conductivity0.019-0.023w/m.k
Moisture Permeability Coefficient≤3.34Ng/Pa/m.s
Water Absorption≤0.5g/100cm2
The Compression Strength≥220KPa
The Bending Strength≥2450KN/m2
Fireproof GradeB1 B2
ApplicationInsulation / refrigeration / dry truck compartments, large-span structural roofs, walls, thermal insulation (or fire protection) workshops, purification workshops, high- and mid-range combination houses, cold storage, container houses, etc.
Price$5-15/ Meter
HS Code73809000

Advantages of PU Sandwich Panel:

1.Efficient insulation.

Because the thermal conductivity of the foaming agent used in the PU board is much lower than that of air (good insulation), the insulation performance of PU rigid foam is better than pure air materials such as mineral wool, glass fiber, and polystyrene. In addition, its unique closed-cell and high gas diffusion resistance make it have excellent long-term insulation performance, which can last 20-50 years or more.

2.Corrosion resistance.

The closed-cell structure of polyurethane rigid foam and the surface material used make it have excellent air resistance and moisture resistance and can be made into a mosaic structure during the molding process, easy to assemble. It does not require an additional insulating layer to protect it from moisture and thus does not require many insulating layers. Other insulating materials cannot achieve these characteristics.

3.Wide, light, and thin-walled.

Since PU rigid foam is used as a structural material at the same time, the overall structure has the advantages of a lightweight, large span, and high load. Compared with other insulating materials, polyurethane rigid foam has insulating properties. Therefore, thinner polyurethane sandwich panels can meet building energy requirements and allow thinner panels to be used during construction, saving building space.

4.Stable quality and high production efficiency.

Nowadays, in the case of a sharp increase in demand, in addition to the convenience of quality control, the production line of the factory producing polyurethane sandwich panels has also brought a good economy and competitiveness.

5.Good weather resistance and easy installation.

PU sandwich panels are prefabricated at the factory and can be used directly for building installation without additional processes and structures. And there is no need to consider whether changes to planning production.

The product is a synthetic material with excellent properties. It has the advantages of high specific strength and low thermal conductivity. It is mainly used as an insulating material, followed by structural materials.

Application of PU Sandwich Panel:

PU Sandwich Panels are widely applied in insulation/refrigeration / dry truck compartments, large-span structural roofs, walls, thermal insulation (or fire protection) workshops, purification workshops, high- and mid-range combination houses, cold storage, container houses, etc.

FAQ:

What are the PUF panels?

Polyurethane Rigid Foam Sandwich Panel (PUF) is a polymer thermosetting thermal insulation heat-resistant synthetic material with excellent performance. It is currently the best thermal insulation material in the market with low thermal conductivity, good thermal insulation effect, and convenient construction. There are several major advantages and features:

  1. Lower thermal conductivity (0.019 ~ 0.027).
  2. Unique construction method.
  3. It has good adhesion.
  4. It has good fire and temperature resistance.
  5. It has the characteristics of breathability and impermeability.
  6. Good crack resistance.

What are insulated metal panels?

The insulated metal panel is directly prepared anodized layer (aluminum oxide film) on the surface of the metal substrate (aluminum substrate/aluminum alloy substrate). The aluminum oxide film has good electrical insulation and can be used as an insulating layer. Because the aluminum oxide film is directly used as the insulating layer of the insulating metal panel, the aluminum oxide film has high electrical insulation, excellent heat dissipation characteristics, and good thermal shock resistance. Therefore, such an insulated metal panel has strong heat dissipation capacity and high reliability and is one of the ideal substrate materials.

Regarding sea shipping from Japan

you can estimate the container shipping costs from FreightPaul, the digital freight forwarder in Japan.

Types of Sandwich Panels:

  1. In terms of core materials:
  • Polystyrene sandwich panel, namely EPS sandwich panel (currently the most widely used variation on the market);
  • Extruded polystyrene sandwich panel, namely XPS sandwich panel;
  • Rigid polyurethane sandwich panel, namely PU sandwich panel;
  • Three polyester sandwich panels, namely PIR sandwich panels;
  • Phenolic sandwich panel, namely PF sandwich panel;
  • Rock wool sandwich panels, namely RW sandwich panels.
  1. In terms of the panel:
  • Metal panels.
  • Non-metal panels
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RockWool Sandwich Panel https://www.cosasteel.com/prod/rock-wool-sandwich-panel/ Wed, 20 May 2020 09:22:06 +0000 http://www.cosasteel.com/?post_type=prod&p=22095 Rock Wool Sandwich Panel

RockWool Sandwich Panel Specification

ProductRock Wool Sandwich Panel
Thickness50mm  75mm  100mm  150mm  200mm
Mental Thickness0.3~0.6mm
Width950mm 960mm  1150mm
Density120~150kg/m3
ApplicationSteel Structure Building/Shed/Steel Construction
Price$10-19/ Meter
HS Code73809000

Advantages of Rock Wool Sandwich Panel:

  1. Excellent fire-resistance performance: The raw materials, production process, and formula used in the rock wool sandwich panel make it have good fire performance. Tests show that it has a fire resistance of more than 1000 ° C.
  2. Good thermal insulation.
  3. Significant sound absorption and heat insulation effect:
  •  Sound insulation: The rockwool sandwich panel has a significant reduction effect on noise transmission, and is especially suitable for places where designated flights pass by. In addition, after using the rockwool roof panel, the impact of rain and hail on the roof steel plate of the building caused the indoor sound, which was also significantly reduced.
  • Sound absorption: The rock wool sandwich panel also has an excellent attraction effect, it can absorb sound in a relatively wide frequency range.

Characteristics of RockWool Sandwich Panel:

  1. Sealing performance: Polyurethane double-sided sealing rock wool sandwich panel adopts the production line process, thus taking advantage of the excellent waterproofness of polyurethane products to overcome the shortcomings of rock wool easy to absorb water deliquescence, and effectively extend the service life of the product in terms of physical properties.
  2. Beautiful performance: The interface is designed according to European standards. The appearance is round and smooth, the surface is smooth and beautiful, the joints are tight, the strength is reliable, and the generation of cold and hot bridges is effectively prevented.
  3. Good rigidity: The polyurethane double-sided sealing rockwool core material is bonded to the two layers of steel plates to form a whole and work together, together with the corrugated pressure profile on the top surface of the roof panel, the overall stiffness is much better than that of the rockwool (glass fiber) Cotton) on-site composite sheet. After the sandwich panel is fixed to the purlin by the connecting piece, the overall rigidity of the roof is greatly improved, and the overall working performance of the roof is strengthened. The rock wool sandwich panel is selected, and a larger purlin distance can be used, so the amount of purlin can be saved by 1/3 ~ 2/3.
  4. The buckling method is reasonable: The two-sided polyurethane rockwool roof panels are connected by concealed buckles, which avoids the hidden leakage of the roof panel joints and saves the number of accessories.
  5. The fixing method is firm and reasonable: the polyurethane double-sided sealing rock wool roof panel is fixed with special M6 self-tapping screws and purlins, which can effectively resist external forces such as typhoons. Self-tapping screws are set at the peak position between the joints of the two panels of the roof panel, and a special waterproof structure is adopted to avoid weak points of waterproofing.
  6. Short installation cycle: Because there is no need for secondary processing on-site, the polyurethane double-sided sealing rock wool sandwich panel, not only can keep the surrounding environment tidy, does not affect the normal operation of other processes, but also can greatly shorten the installation cycle of the board. The daily installation area of rock wool sandwich panels is 600-800m2
  7. Anti-scratch protection: In the production of polyurethane double-sided sealing rock wool sandwich panel, polyethylene self-adhesive protective film can be pasted on the surface to avoid scratching or abrasion of the surface coating of the steel plate during transportation and installation.

Application of Rock Wool Sandwich Panel:

It is widely applied in the roof and wall of steel structure workshop, simple mobile house, and suspended ceiling and partition of air cleanroom.

 

FAQ:

How do you make RockWool Acoustic Panels?

A fireproof and soundproof rockwool thermal insulation board includes an upper rockwool board and a lower rock wool board and also includes a middle fireproof and soundproof layer. The middle fireproof and soundproof layer is obtained by splicing several soundproof plates, and the joint between two adjacent soundproof plates is filled with vitrified micro-beads.

Is rock wool mineralwool?

Mineral wool:

The molten metallurgical slag is made into a flocculent shape by spraying method or centrifugal method, which has the characteristics of heat insulation, sound absorption, corrosion resistance, non-combustibility, low price, and good waste.

Rock wool:

The natural rock such as dolomite, granite, and basalt rock is melted and then sprayed or centrifuged to make rock wool A. Its performance is the same as slag wool.

Rock Wool Insulated Roof Panels:

The rock wool board can be used as a roof. The general construction that uses rock wool board has excellent performance of fire prevention and heat insulation. Therefore, it is widely applied in various buildings. It is a kind of thermal insulation material with high-cost performance and excellent performance, which can meet the design requirements of building roofs.

Can Rock Wool cause cancer?

The history of rock wool in Japan was not very long, but it has been used for many decades in Europe, North America, and other regions, and has been widely used, but many people suspect that the fiber released by it will be inhaled during using, having the risk of suffering from cancer. To this end, the International Cancer Agency did a corresponding investigation and study. As a result, there was no evidence to prove that rock wool can increase the risk of lung cancer or mesothelioma. The following research also shows that it is the same for other cancers. Moreover, rock wool has been used as a thermal insulation material for a long time, and the decomposition rate is also very slow, which has deepened people’s misunderstanding. Many tests have been done, and it is found that most of them are non-carcinogenic. Only in extremely bad circumstances can cancers occur in experimental animals.

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