Do you want to achieve excellent insulation in your building? A PU Sandwich Panel is a good insulating solution to go for.
If you are looking for more details, kindly visit KUKU.
It is designed as a double sheet layer at the sides with an insulating material present in the core.
It works effectively for both indoor and outdoor uses. Whether you install it at your home, office, school, or any other place, it will work amazingly.
The lightweight of your PU Sandwich Panel contributes a lot to its easy transportation and handling.
All the raw materials used in its manufacturing are the least harmful to the environment and human health. Maintaining it will increase its life so that you can get the benefits for a greater period.
This guide presents you with the specifications, applications, and maintenance of your PU Sandwich Panel. So, let&#;s start reading.
Sunnyda PU Sandwich Panel Transportation
1.What is a PU Sandwich Panel
2.What are the Major Features of a PU Sandwich Panel?
3.What are the Applications of the PU Sandwich Panel?
4.What are the Advantages of Using the PU Sandwich Panel?
5.What are the Responsibilities of the Manufacturer of your PU Sandwich Panel?
6.What are the Safety Considerations when using the PU Sandwich Panel?
7.What are the Tools Required for the Installation of your PU Sandwich Panel?
8.How to Store your PU Sandwich Panel at the Building Site?
9.What Things Should you Consider While Lifting your PU Sandwich Panel?
10.What are Some General Rules for Installing your PU Sandwich Panel?
11.What are the Methods for Cleaning your PU Sandwich Panel?
12.What are the Factors to Consider When Buying a PU Sandwich Panel?
13.How to Cut the PU Sandwich Panel?
14.Where is the Self Drilling Screws used for Installing the PU Sandwich Panel?
15.What is the Suitable Temperature for Installing the Dark Colored PU Sandwich Panel?
16.How to Repair Damaged Coating of your PU Sandwich Panel?
17.What are the General Instructions for the Workers Handling the PU Sandwich Panel?
18.How to Repair the Damaged Surface of your PU Sandwich Panel?
19.What are the Possible Solutions for the Dents on your PU Sandwich Panel?
20.How to Minimize Fire Loss in your PU Sandwich Panel Construction?
21.How to Repair your Damaged PU Sandwich Panel?
22.How to Repair the Damaged Insulation of your Rockwool Sandwich Panel?
23.How to Clean your PU Sandwich Panel Surface?
24.How to Clean Snow on your PU Sandwich Panel?
25.Conclusion
A PU Sandwich Panel is a panel that contains a core filled with Polyurethane surrounded by an inner and outer layer.
It offers great resistance to water which minimizes the damage to its construction. Moreover, it is resistant to corrosion and rusting which aids in its durability and longer life.
It has good mechanical strength and high weight-bearing capacity which helps in its rigidity even when exposed to high pressure or force.
These features provide your PU Sandwich Panel with great protection against harsh weather conditions.
It is available in different colors and sizes to exactly match your location with greater ease.
Moreover, good-quality screws and joints are used in the durable fastening of your PU Sandwich Panel.
The best thing about it is that you can customize the length according to your requirement.
Sunnyda PU Sandwich Panel
Some major features of the PU Sandwich Panel are:
Waterproof PU Sandwich Panel
The applications of the PU Sandwich Panel are listed below:
PU Sandwich Panel Applications
Various advantages of using the PU Sandwich Panel are given below:
Fire-Resistance PU Sandwich Panel
The manufacturer of the PU Sandwich Panel is responsible to provide the following facilities to the buyer:
While installing the Polyurethane Foam Sandwich Panels, it is significant to be careful about the regulations of health and safety that are valid to the place it is installed.
It has sharp, mechanically tooled surfaces, edges, and corners. Don&#;t forget to use safety gloves and clothing.
While mechanical treatment, make sure you wear goggles and ear protectors.
The PU Sandwich Panel is huge and needs to be handled with care following all the safety instructions.
Make sure there are no people beneath it when it&#;s lifted. Its stability can be decreased when lifted because of strong winds.
It is advised not to install it when it is windy. If the wind gust increases up to 10 m/s, its installation is not permitted.
To know more about the instruments, equipment, and devices read the manual and safety instructions carefully.
To install your PU Sandwich Panel, the following tools are necessary:
Below are mentioned some storage instructions that will help in properly storing your PU Sandwich Panel at the construction site:
PU Sandwich Panel Storage
Here are some considerations that are essential to keep in mind during lifting of your PU Sandwich Panel:
PU Sandwich Panel Lifting
Some general rules for good installation of your PU Sandwich Panel are explained below:
Rules For Tooling
Soon after tooling it, all drill holes and cuts must be free from splinter using brushing.
Prevention Of Thermal Bridge
The inside facings act as a thermal bridge if it comes across a different environment with different temperatures and helps lose heat.
However, it can be problematic in the buildings outside and inside corners.
So it is necessary to eliminate the thermal bridges whenever possible or avoid developing thermal bridges.
Cutting of the internal facing at the end of the PU Sandwich Panel can lead to the elimination of the thermal bridge from the outside corner of the building.
The process should be carried one after installation is done. Make sure the cutting doesn&#;t affect the stability.
To eliminate inner thermal bridges, mounting thermal insulation is necessary between the framework and the end of the panel. Make sure the thermal insulation works properly and does not clasp.
Sealing Of Fasteners and Joints
To prevent air and vapor movement, joints in between should be tightly locked.
The PU Sandwich Panel should have no gaps. To remove gaps from it if any, fill it using insulating or sealant materials.
To avoid entrance of outdoor air or precipitation of buildings, seal the joints and fasteners.
Only the sealants and insulation mentioned in the drawing set should be used for sealing. Insulation should not be squeezed or lose its function.
Sealant should be applied on a dry and clean surface. If not clean, clean it before applying. Even application of a sealant is necessary on PU Sandwich Panel gaps and joints.
For more information, go through the instructions mentioned on the packaging and the safety sheet of your product.
PU Sandwich Panel Installation
Cleaning your PU Sandwich Panel is essential for its maintenance. You can use any of the three mentioned cleaning methods that are commonly used:
Method 1. Cleaning With Water Jet
Make use of clean water with low salt content and water jet at high pressure to clean the PU Sandwich Panel. The pressure of the water jet should be higher than 4Mpa.
Water jet at a higher pressure should be kept at least 50 cm away at a skew angle from the surface.
Take care that while cleaning, no water enters the joints by avoiding placing water jet exactly onto the joints.
You should keep the water temperature up to +30 C normally but it can be raised to 50 C if you see the surface of the PU Sandwich Panel.
Method 2. Clean Agents Cleaning
Cleaning agents having a pH between 5 to 10 with no organic solvents can be used for cleaning the surface.
Method 3. Clean With Organic Solvents
Organic solvents such as isopropanol, ethyl acetate, white spirit, or cleaning agents containing solvents like windshield washer fluids can be used to clean permanent stains and residuals of the adhesive.
While cleaning the PU Sandwich Panel, keep seeing the solvent does not change or destroy the appearance of the metal covering.
To apply solvent on the surface, use a sponge or textile. You can use the rubber or plastic scraper for the removal of adhesive residues.
While using soapy water is a good suggestion for cleaning the rest of the portion.
Before buying a PU Sandwich Panel, it is required to consider the given factors:
Cutting the PU Sandwich Panel is not a hard task but you need to use the proper tools for it.
A sharp saw that has fine tooth blades is the most suitable tool you can use for cutting your PU Sandwich Panel.
You may also use the special buzz saw blades if you want a better cutting option, or in case the first one doesn&#;t suit you.
Just make sure that you are not using any heat-producing tool such as the angle grinder, as it is not safe for the coating material.
PU Sandwich Panel Cutting
Self-drilling screws are used in the fastening and installation of the PU Sandwich Panel.
One great benefit of using these screws is that they don&#;t require any pre-drilling techniques, because of their drilling tip.
Due to their stainless steel construction, you can use them in a humid, or chemically aggressive indoor environment.
The suitable temperature for installing a dark-colored PU Sandwich Panel is greater than 10°C.
Don&#;t install below this temperature as it can result in increased thermal load resulting in damage to your PU Sandwich Panel.
However, you may use your product&#;s manual to check the exact or most suitable temperature for your specific unit.
The coating of the steel facing needs extra care. It can easily be changed due to ultraviolet radiation, air pollution, and temperature fluctuations.
If the PU Sandwich Panel is in direct contact with sunlight, the temperature can reach up to 60°C for light colors and 80°C for dark colors.
However, the temperature of the air in shades remains +28 °C. The possibility of damage increases at a higher temperature.
Microcracks can be observed if rainwaters drop on the heated steel coating. Polymer scratching also becomes easy in high temperatures as the hardness of polymer decreases.
The polymer coating vanishes out due to climate changes which make the surface matted and top polluted.
You may also experience bubbling, peeling, cracks, and corrosion of paints if the damage is extreme.
If PU Sandwich Panel is properly installed, has the light color of coating according to the climate then up to 25 to 50 years it will show no sign of aging. The light color coatings are more durable than dark color coatings.
If you encounter larger area damages they may be due to climate changes as climate changes are never local and are spread all over the area. The best way of repairing the damage caused by climate change is by painting it all over again.
Another main cause of damage in the PU Sandwich Panel is mechanical impact. It causes dents, scratches, and other damages but requires little repairing most of the time.
PU Sandwich Panel Repairing
The workers need to obey the following instructions when handling the PU Sandwich Panel:
PU Sandwich Panel Handling
The whole PU Sandwich Panel needs to be changed in case a larger area is damaged.
Repairing of PU Sandwich Panel having a polyester coating is compulsory even after every 15 to 20 years whether the damage is visible on the exterior or not.
One with polyvinyl fluoride (PVDF) coating can work with repairing for up to 20-30 years.
However, repainting should be done after every 10 years. You can exceed its life up to 50 years with proper maintenance. Only acrylate polymer-based paints should be used for repainting SP and PVDF coatings.
To fix a dent on your PU Sandwich Panel, clean it thoroughly, and then use a grinder to grind the paint, but make sure the zinc content is not being destroyed.
Now you have a trowel for applying a primer. Then use a filler to fill the dents and in the end wipe of the excess.
You can minimize the fire loss in your PU Sandwich Panel by the following things:
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Cracks and Scratches on Steel Coating
The durability of the PU Sandwich Panel lowers down because of the cracks and scratches on the steel facing.
It also results in the breakdown of the building. The scratches and cracks get filled with dust, gas, and materials that accelerate the corrosion of steel.
To stop corrosion, immediate repair is necessary otherwise the new defects will not be easily repaired.
So early repairing of the damaged area is important. It can be done by restoring the protective coating by grinding.
The paint color of the repaired part will be different from the original color of the PU Sandwich Panel.
The difference can be easily visible when the repaired area will be large. So it is recommended to repair a damaged area soon after it is spotted.
Core Damage
The core of PU Sandwich Panels is mostly damaged during transportation, installation, or handling. Easily damageable among all are those which are made of the mineral wool core.
The only way to repair a panel having a mineral core is through panels that have no fire safety requirements. Fill polyurethane foam into the core after cutting out the damaged area.
The mechanical properties of the PU Sandwich Panel are not affected by little filling.
Cuts and Crossings
Cuts larger than 200mm affect the durability of the PU Sandwich Panel. So if you are making a cut check for its effects on durability.
If its structure is to be enhanced by adding any engineering communication or equipment, the level of safety requirements of the crossing must be the same as applied to the PU Sandwich Panel.
Distribution of the Loads
Protection of one that accesses the load is important. To equally distribute the load, cover the access area with mineral wool boards.
All the load should be shifted to the part that has the load-bearing frame. No additional load or access load is allowed to be placed. The design load should be taken into account.
Improper cutting, installation, and transportation may cause the debonding of the steel core from the insulation core.
For small areas, flashings can be used. However, applying glue is necessary for larger areas debonding.
Single component polyurethane adhesive is recommended to be used for this purpose. Press the core after applying glue or put a weight on it to get it bound to the steel core firmly.
You can water jet for cleaning the PU Sandwich Panel keeping its pressure up to 4Mpa. Directly point the water jet with a skew angle from 50 cm away for proper cleaning.
Avoid targeting the joints directly and make sure no water enters the joints.
The normal temperature of the water should be 30 C but in case of any fats or grease, the temperature can be increased to 50 C.
Hopefully, this guide is sufficient to inform you about all the features, construction, and uses of the PU Sandwich Panel.
Its easy installation and effortless transport are liked the most by the operators. Moreover, it offers easy maintenance and cleaning solutions for the convenience of the user.
But it is always recommended to hire a professional installer for achieving a perfect installing at the required site. PU Sandwich Panel always succeeds in satisfying the user from every aspect so you won&#;t be disappointed.
The PU Sandwich Panel offers excellent resistance against fire, so if there are enhanced chances of a fire in your building, don&#;t forget to install it.
100% Quality Tested PU Sandwich Panel
FAQs of PU Sandwich Panel.
What Factors of the PU Sandwich Panel Save on the Heat Bills?
The exclusion of the cold bridges and excellent flame retardation of the PU Sandwich Panel save on the high heat bills.
Is the PU Sandwich Panel Friendly for Environment?
Yes, the PU Sandwich Panel is friendly to the environment. From the manufacturing stage till the disposal stage it provides no harm to the environment.
What is the Advantage of Low Thermal Conductivity of the PU Sandwich Panel?
The low thermal conductivity of the PU Sandwich Panel is beneficial for its excellent thermal insulation, or for protecting against thermal changes.
How is the Installation of your PU Sandwich Panel Easier?
The installation of your PU Sandwich Panel is easier due to the use of fewer accessories within less time consumption.
What are the Skin Types Available for the PU Sandwich Panel?
The three skin options available for the PU Sandwich Panel are ribbed, corrugated, and plain.
What is the Reaction of the Polyurethane Present in your PU Sandwich Panel When Exposed to Heat?
The Polyurethane present in your PU Sandwich Panel remains unmelted and stays in place even when exposed to high heat, making it an excellent insulating material.
What is the Benefit of the Carbonaceous Char Formation for your PU Sandwich Panel?
The carbonaceous char production is beneficial for the core of your PU Sandwich Panel as it protects it from damage and deformation.
What is the Tensile Strength Value of the PU Sandwich Panel?
The tensile strength of the PU Sandwich Panel is 370 kPa. This makes it a lot suitable to be used in the construction industry.
How Can you Increase the Fire Retardation Properties of your PU Sandwich Panel?
Adding FR agents to the PU Sandwich Panel increases its fire retardation proving it enhanced resistance to fire.
What is the Density of the Polyurethane Present in the PU Sandwich Panel?
The density of the Polyurethane present in the PU Sandwich Panel is around 32kg per meter cube.
What is the Thermal Conductivity Value of the Polyurethane in the PU Sandwich Panel?
The thermal conductivity of the Polyurethane in the PU Sandwich Panel is 0.020 W/m.K.
How Much Water Can the PU Sandwich Panel Absorb?
The PU Sandwich Panel can hardly absorb a maximum of 2 percent water entering the material.
Sunnyda PU sandwich panel is widely used for cold room, freezer, industrial building wall, roof, partition, construction enclosure, and modular building.
Sunnyda is equipped with full set of accessories such as ceiling hanging materials, various channels and profiles to ship together with PU sandwich panel. Including doors and windows.
Sunnyda PU sandwich panel ship on pallets, or piece by piece to save space. Both surfaces of PU sandwich panel is protected by thick film from scratch on transport. To protect the panels from the floor and four corners of the container, we put foam when no pallets are used. Do not to unload PU sandwich panel by a forklift when no pallet has been used. This can hurt the panel section.
Sunnyda has exported PU sandwich panel to dozens of countries during the last 10 years. We are trusted by clients, keep long term relationship. Order or no order, we&#;ll be happy to support your business.
Welcome your visit to our production facility and showroom. Contact us for a free sample!
One of the effective prefab house materials trending in the field of engineering is the sandwich panel. It is produced in various types with each of them manufactured for specific industrial and residential applications. Basically, all sandwich panels are manufactured with more than one material with each compatible for thermal insulation.
For example, rockwool sandwich panels are designed specifically for users who deal with a fire at home or in their line of business. This is because it is non-combustible. On the other expanded polystyrene sandwich panel (PU sandwich panel) is designed to reconcile the extremity of hot or cold temperatures. However, there is still a gap for a product that is a perfect and suitable sandwich panel for users whose uses and application fall under freezing or cold category.
It has been found that manufacturers have produced PU Sandwich Panel to fill this gap. This study guide is quality research produced to guide potentials users of PU Sandwich Panel on the basic things to know. It is segmented into chapters for a sound comprehension by readers.
Figure 1: PU Sandwich Panel
The term &#;PU&#; is an abbreviation for polyurethane. A polymeric resins that compose contents that are urethane which is a white crystalline organic compound (ethyl-carbamate). In the process of manufacturing, polyurethane is injected into other secondary materials such as double-dyed galvanized steel sheet, stainless steel, and aluminum magnesium manganese.
The end result of this combination is a polyurethane sandwich panel which is used to beautify a house and also to guarantee a high thermal insulation performance in a building. In terms of insulation, PU sandwich panel is superior to other types of the sandwich panel because of its lambda measures at 0.022 (W/MK). The Coil Coating technology used to paint PU Sandwich Panel ensures that the skin of the panel is corrosion-resistant. PU Sandwich Panel finds its application either as the whole fabric of a building or as a part of the building which is usually the roof, the wall, the facade, or the floor. Its water-friendly external layer makes it perfect for cleaning when it is used on floors. PU Sandwich Panel is also color-friendly as it gives painting the radiance and longevity required for quality aesthetics.
Having seen what PU Sandwich Panel is made up of and some of its qualities, it is time the questions of the uses and application of this product is answered.
It promises to be enlightening.
Figure 2: PU Sandwich Panel
Having seen some of the uses and application of PU sandwich panel, there is something more to see.
Best Thermal Insulation Performance: Of all the sandwich panels in the market, PU sandwich panel has the most effective thermal insulation capacity. Its heat conductivity coefficient only 0.022 (W/mK) making it perfect for any type of temperature extremes. It absorbs heat and makes the occupants enjoy the benefit of tranquility and coolness. PU sandwich panel heat insulation is perfect. PU sandwich panel also features maximum security against chemicals and water.
Integrity in Fire Resistance: PU sandwich panel maintains a satisfactory level of resistance to fire. It still does not reach the level of resistance that the rockwool sandwich panel is but its fire integrity layers is fair enough.
Panel Joint is Perfect: The joint panel of PU sandwich panel removes cold bridges through its milled core contact faces.
Fast and Easy Erection: The joint lock profile is carefully designed to ensure that the laying of the panels is quick. The tapered inner contact edges and lengthwise grooves also are significant in the time-efficient process of installation. This makes the installation of the PU sandwich panel not only fast but can also be done by two or more people.
Environmental Friendliness: PU sandwich panel is easy to recycle. With this, it does not have any side effect on the environment.
It is not Susceptible to Corrosion: PPGI has good rust resistant performance. When used for interior wall of cooling room for meat or seafood, recommend the stainless steel 304, food grade and best for no rust.
Versatile Application: It can be used for many interior and exterior parts of the building.
Lightness in Weight and Heavy Weight Carrier: With respect to weight, PU sandwich panel is versatile. It is light in weight and can be easily transported from one geographical location to another. Also, it can carry heavy weights occupants and building content. This feature gives PU sandwich panel its mechanical strength with a top ranking thickness and density value.
It is Accredited Internationally: It is a product that has gained trust in all parts of the world especially in Australia because of its suitability for seafood storage. Already, a credible manufacturer like Sunnyda has partnered with many individuals and company in more than ten countries in the world in the use and application of PU sandwich panel.
Good for Colors: Beauty is the end result of all building materials. It has to be beautiful above all. PU sandwich panel is not lacking at all in this context. You can&#;t paint a PU sandwich panel with any paint of your choice. However, there is a provision for you to tell your manufacturer the RAL color of your specification when buying it.
Durability: When compared with all other insulation panels, PU sandwich panel remains the most durable. Its durability is compatible with that of bricks building. Its longevity ranges from 5-20 years.
Anti-Fingerprint: For absolute privacy, PU sandwich panel could comes with an anti-fingerprint feature. It doesn&#;t retain the traces of users. This will be of importance to maximum security agencies.
Having seen some of the benefits of PU sandwich panel, there is prior knowledge you must have before you make orders.
Figure 3: PU Sandwich Panel Technical Properties
PU sandwich panel features a width of 1m but its length can be customized according to the specification of the potential users. The steel used in the manufacturing of PU Sandwich Panel comes in either galvalume steel or PPGI in a measure of 0.4-0.8mm. For walls and roofs, PU e sandwich panel comes in various measures which are 50mm, 75mm, and 100mm respectively.
Figure 4: PU Sandwich Panel Technical Properties
Its cold room panel ranges from 50-200mm. It plastic films capacity is measured at a range 0.06-0.08mm. Its density specification is 40kg/m3. Its thermal conductivity is measured at 0.022 W/mK and in terms of fireproof authenticity, PU sandwich panel is valued &#;B&#;. It comes in a pre-painted any Ral color. PU sandwich panel comes in a width of m. However, there is no limit to the length of the PU sandwich panel. The length that will be measured for your purchased PU sandwich panel will be largely determined by what you want to use the PU sandwich panel for. This implies that for one order, you may have up 10,000 of PU sandwich panel length that will be cut in a maximum 11.85mm for transportation reasons. The 11.8mm maximum length packaging is because the shipping container that will be used to store your purchased product for distribution is 40HQ.
Another important technical description that you should know about PU sandwich panel is that its joint is a groove. Its screws are absolutely invisible so that it looks perfect.
Figure 5: PU Sandwich Panel Technical Properties
In this chapter, you will see some of the answers to the frequently asked question surrounding the use of PU sandwich panel.
Question: Can I use PU Sandwich Panel for the structure of my oven?
Answer: For your bakery or other sensitive fire requirements, rockwool sandwich panel serves as the number one insulation performance you can use. However, if getting a rockwool sandwich panel proves difficult, PU sandwich panel also guarantees heat absorption and fire integrity up to 65%.
Question: How do I know that material has thermal insulation?
Answer: You can know that any material assures you of thermal insulation if its thermal conductivity is measured below 0.065 W/mK. In the case of PU sandwich panel, it is measured 0.022 W/Mk making it the number one thermal insulation performer.
Question: Why do I need a product that has thermal insulation?
Answer: You need it because you need to reduce the extremities of your temperature. You need to maintain a temperature in your building that is not too hot and not too cold. This can only be attained if your roofs, walls, and other areas have thermal insulators on them. If you are in a place that as extreme temperatures then it is very efficient that you use PU Sandwich Panel for your various industrial and residential applications.
Question: What is R-Value?
Answer: The &#;R&#; stands for resistance. The &#;R&#; value is a concept designed to measure how effective am insulation product is. Here, the product&#;s resistance to heat flow or other temperature conduction will be questioned. An insulation product is to be ranked high based on the level of its R-value which means the better the R-value, the better the insulation performance. The R-value is determined by the thickness and density of the insulation product. PU Sandwich Panel has ranked high in terms of R-value. The thickness of PU Sandwich Panel comes in various measures which are 40, 50, 75, 100, 200mm and its density is one of the best you can get from an insulation panel with a value that ranges from 38-45kg/m3. With this measure of thickness and density level, you can be assured that you have found a product that is suitable for your cold room, cooling facilities, freezers, building roofing, building a wall for industrial facilities, modular building, and construction enclosures.
Having seen the answer to your important questions, something essential is below
We can be contacted at any time any day. Since our customers are all over the world, we have a 24/7 active customer care service.
PU sandwich panel is the number one choice for users who want a lasting serenity in their homes and offices. Sunnyda House company has manufactured it to correspond exactly to all the advantages you have read in this guide. Your comfort is our priority.
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