Sheet and Film Materials: Characteristics and Applications

Sheet materials are thin, inexpensive, and come in various colors, but are sensitive to pressure and prone to damage, unlike thicker, more durable film materials.

### A Comparison of Sheet Materials and Film Materials
Sheet materials are thin, inexpensive, and available in various colors, but they are sensitive to pressure and prone to damage. Film materials, on the other hand, are thicker, more resistant to scratches and deformation, and have better adhesive strength. Film materials also offer flame-retardant properties, making them widely used on-site.

### The Advantages of Using Film for Large Quantity Purchases
Film has more advantages than sheets, making it easier to install for large quantity purchases. The AS center recommends using film for those who need a larger quantity, as it is strong and easier to use in bulk.

### Sheet vs. Film Materials for Offset Printing: A Comparative Analysis
* 📄 **Sheet Materials**: Thinner (0.02mm), inexpensive, variety of colors, but **sensitive to pressure**, **prone to scratches**, and **difficult to install**.
* 🎞 Film Materials: Thicker (due to two layers), diverse types, **good initial adhesion**, easy to work with, **strong adhesive strength**, scratch and deformation resistant.
* 🔥 Flame-Retardant Properties: Sheets lack flame-retardant properties due to being hollow, while films are **flame-retardant and widely used on-site**.
* 💪 Adhesive Strength: Sheets have **strong adhesive strength**, suitable for small quantities, while films are more advantageous for large quantities due to **easier installation**.
* 🏭 **Usage Rate**: Film materials are commonly used as finishing materials on-site, with a **usage rate of about 70% to 80%**.
* 🔍 Primer Requirement: When using film, a primer should be applied first for **better initial adhesion**, despite **weaker adhesive strength** at that stage.
* 🛠 Installation Difficulty: Sheets are more difficult to install due to their thinness and sensitivity to pressure, while films are easier to work with and have **stronger adhesive strength over time**.
* 🔥💰 For offset printing, film materials are generally more advantageous due to their **durability, ease of installation, and flame-retardant properties**, making them suitable for **larger quantities and on-site use**.

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