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● The specially formulated adhesive ensures easy application and removal without leaving residue glue on the sandwich panels;
● The super-tough polyethylene film protects against scratches, dirt, marks, and damage during the transportation, cutting, drilling, and installation of sandwich panels;
● Good weather ability for outdoor exposure;
● UV resistance for up to 6 months;
● Can print customized logo or application instructions;
Main characteristics：
|
Thickness |
From 30um to 50um |
|
Width |
From 150mm to 1500mm |
|
Roll length |
500m to 2,000m |
|
Elongation |
≥300 |
|
Adhesion level |
Medium |
|
Adhesive type |
Acrylic |
|
Film color availability |
Transparent clear or blue etc. |
|
Printing availability |
0-3 colors |
1. Considerations for Choosing Protective Film
Selecting the right protective film for sandwich panels is crucial to ensure optimal protection and performance. Various factors need to be considered to match the film's properties with the specific requirements of the application.
a)Panel Material Compatibility: The compatibility between the protective film and the panel material is paramount. Different sandwich panel materials, such as steel, aluminum, or composite materials, may react differently to various adhesives and films. Choosing a film that adheres well without causing any chemical reactions or damage to the panel surface is essential. For instance, films designed for metal panels might not be suitable for composite panels due to differences in surface texture and chemical composition.
b)Duration of Protection: The required duration of protection plays a crucial role in selecting the appropriate film. For short-term protection during transportation and installation, a standard protective film might suffice. However, for long-term storage or extended protection in harsh environments, a more durable film with enhanced adhesive properties is necessary. It's essential to balance the film's durability with the ease of removal to avoid adhesive residue or film breakage during removal.
c)Ease of Application and Removal: The ease with which the protective film can be applied and removed affects both labor costs and the risk of panel damage. Consider the following aspects: Application Method: Films that can be applied smoothly and bubble-free with minimal tools and effort are preferred. Self-adhesive films that do not require additional adhesives or solvents simplify the application process. Removal Process: The film should peel off cleanly without leaving adhesive residue. Films designed for easy removal often have specially formulated adhesives that balance strong initial adhesion with clean removability. Repositionability: Some films allow for repositioning during application, which can be beneficial for ensuring perfect alignment and coverage.
d)Film Thickness and Strength: The thickness and strength of the protective film determine its ability to withstand physical impacts and abrasions. Thicker films generally offer better protection against heavy scratches and dents but may be more challenging to apply and remove. Conversely, thinner films are easier to handle but might provide less robust protection. It's important to select a film with the right balance of thickness and strength for the specific application requirements.
2. Industry Applications of Protective Film for Sandwich Panels
Protective film plays a crucial role across diverse industries by safeguarding sandwich panels during handling, transportation, storage, and installation.
a)Construction Industry: In the construction sector, sandwich panels are extensively used for their thermal insulation properties, durability, and aesthetic appeal. Protective film ensures that these panels remain in pristine condition from manufacturing through to installation on building exteriors and interiors. It shields panels from scratches, abrasions, and other damage during handling and construction activities. UV-resistant films prevent discoloration and maintain the panels' visual appeal during prolonged exposure to sunlight. Protective films with weather-resistant properties protect panels from rain, snow, and humidity during storage and prior to installation.
b)Refrigeration and Cold Storage: Sandwich panels are integral to refrigeration and cold storage facilities, where maintaining consistent temperatures is critical. Protective film helps preserve the integrity and cleanliness of panels used in these environments. It prevents contamination from dust, moisture, and other contaminants that could compromise the panels' insulation properties. Films designed for cold storage applications resist condensation and moisture buildup, ensuring panels remain effective in temperature-controlled environments. Anti-microbial films are also used to prevent bacterial growth and maintain hygienic conditions, crucial for storing food and pharmaceuticals.
c)Transportation and Logistics: During transportation and logistics, sandwich panels are susceptible to damage from handling, loading, and unloading processes. Protective film provides a barrier against scratches, dents, and abrasions caused by friction or impact during transit. Films with strong adhesive properties ensure panels remain securely protected throughout their journey, minimizing the risk of damage. Transparent films allow for easy inspection of panels without removing the film, facilitating quality control checks upon delivery.
d)Industrial Applications: In industrial settings, sandwich panels are used in diverse applications ranging from manufacturing facilities to warehouses and distribution centers. Protective film guards panels against chemical spills, abrasions from heavy machinery, and impacts from equipment or materials being transported. Chemical-resistant films protect panels from corrosive substances used in industrial processes, ensuring longevity and reducing maintenance costs. UV-resistant films maintain the panels' structural integrity and appearance in outdoor industrial environments exposed to sunlight and weather elements.
e)Agriculture and Farm Buildings: Agricultural buildings utilize sandwich panels for their insulation and structural benefits. Protective film shields panels from environmental factors such as rain, wind, and humidity, which can accelerate wear and tear over time. UV-resistant films prevent panels from fading or degrading due to prolonged exposure to sunlight, maintaining their aesthetic appeal and structural integrity. Anti-microbial films are also beneficial in agricultural settings, preventing mold and mildew growth on panels used in humid environments or near livestock areas.
