Understanding Structural Differences and Selecting the Right Peel Force for Tapes, Labels, and Die-Cutting
Product Overview
In the pressure-sensitive adhesive (PSA) and die-cutting industries, the release liner is the silent partner that dictates production efficiency. When specifying materials, buyers often ask about the difference between Single-Sided vs Double-Sided Release Film. While they look similar, their structural differences dictate entirely different applications and handling processes. Understanding these differences is key to avoiding costly lamination failures.
Single-Sided Silicone Coated Film
In a single-sided film, only one side is coated with silicone, while the other side (often corona-treated) is left bare for adhesion or printing.
- Function: The silicone side provides the release, while the non-silicone side acts as a stable backing for inks, adhesives, or coatings.
- Applications: Widely used as the backing for single-sided tapes, labels, and protective films where one side needs to bond to something else.
- Peel Force: Available in light, medium, and heavy release forces to match the tackiness of the adhesive.
Double-Sided Silicone Coated Film
A double-sided film has a silicone coating on both sides.
- Function: Both sides repel adhesives. This is critical when the liner needs to be unwound from a roll without sticking to itself, or when it acts as a carrier between two adhesive layers.
- Applications: The mandatory choice for double-sided tapes, transfer tapes, and complex multi-layer die-cutting processes.
- Peel Force: Usually engineered with specific differential release (e.g., one side light, one side tight) so the tape stays on one side of the liner during unwinding.
Choosing the Right Peel Force
Whether single or double-sided, the release force (measured in grams per inch) must match your adhesive:
- Light Release: For low-tack adhesives or delicate surfaces.
- Medium Release: The standard choice for general-purpose labels and tapes.
- Heavy Release: Used for high-tack adhesives or when the liner must remain firmly attached to one side during processing.
Technical Characteristics
The following values represent the typical capabilities of our release film range:
- Material: Silicone-Coated PET (Polyethylene Terephthalate)
- Coating Types: Single-Sided or Double-Sided
- Release Force: Light, Medium, Heavy (Customizable)
- Thickness Range: 12 μm to 100 μm
- Compliance: RoHS, REACH compliant
Manufacturing and Supply
Jinlu Film is a direct manufacturer of high-performance functional films. We operate advanced coating lines that ensure precise silicone weight and uniform release forces on both single and double-sided films. We support custom slitting widths, bulk order fulfillment, and reliable global shipping.
Contact us today for a factory quote, technical data, or a sample of Release Film.
