40g Yellow Glassine Paper Silicone Coated Glassine Release Paper

Q1: What is Glassine Release Paper?
A: Glassine Release Paper is a high-density, super-calendered paper with an exceptionally smooth and glossy surface. It is produced by hydrating paper pulp and then calendering it under high pressure and heat. This process creates a non-porous structure that is naturally resistant to air, moisture, and grease. It is then coated with a layer of silicone on one or both sides, which gives it its excellent release properties, allowing sticky materials like adhesives to cleanly and easily separate from it.

Q2: What are the key features and benefits of Glassine Release Paper?
A: Its key features and benefits include:

• Excellent Release: Provides a consistent and clean release from pressure-sensitive adhesives (PSAs) and other sticky substances.

• Barrier Properties: Highly resistant to water, vapor, grease, and air, protecting the coated product.

• Smooth Surface: Offers a high-quality, defect-free finish, which is critical for many applications.

• High Tensile Strength: Strong and durable, making it suitable for high-speed converting machines without breaking.

• Dimensionally Stable: Resists expanding or contracting with changes in temperature and humidity.

• Translucent: Allows for visibility of the product underneath.

Q3: How is Glassine Paper different from other release liners like Kraft or Polycoated Paper?
A: The primary differences lie in the manufacturing process and surface properties:

• vs. Kraft Release Paper: Kraft paper is stronger and thicker but has a much rougher, more porous surface. Glassine is smoother, denser, and provides a superior barrier against moisture and gases.

• vs. Polycoated Paper: Polycoated paper has a layer of polyethylene (PE) applied, making it highly waterproof and very stiff. Glassine is more pliable, has a smoother surface for better release, and is often more environmentally friendly as it is primarily paper-based.

Q4: What are the common applications for Glassine Release Paper?
A: It is used in a wide range of industries, including:

• Pressure-Sensitive Adhesive (PSA) Products: Backing paper for labels, tapes, stickers, and graphic films.

• Composite Materials: Release liner for prepregs (pre-impregnated composite fibers) in aerospace, automotive, and wind energy.

• Industrial Tapes: Interleaving and backing for various adhesive tapes.

• Food Packaging: Grease-resistant paper for wrapping fats, oils, and baked goods (in its uncoated form).

• Printing & Arts: Used as a protective interleaving paper between prints or photographs.

Q5: What does "one-sided" and "two-sided" silicone coating mean?
A: This refers to which sides of the paper have the silicone release coating applied.

• One-Sided (1S): Silicone is applied to only one side. The other side remains uncoated and may be printable or have adhesive affinity. Used for single-sided adhesive products.

• Two-Sided (2S): Silicone is applied to both sides. This allows the liner to be released from adhesive on both surfaces and is often used for double-sided tapes or as a protective interleaving sheet.