At SpecBond, we are dedicated to helping a wide range of industries meet their specialty tape and converting needs. Among the many considerations in creating an optimal PSA tape (pressure-sensitive adhesive tape), is whether to use a film release liner or paper release liner.
Release liners are used to cover the tape’s adhesive surface until the tape is ready to be used. Liners can be made of either paper or film, and although paper release liners are more cost-effective, film release liners come with some distinct advantages. Let’s take a look.
Advantages of Film Release Liners for PSA Tapes
Here are five reasons why film release liners are particularly advantageous when compared to paper release liners.
1. Film liners will not tear like a paper liner during liner removal allowing a much easier process for substrate lamination.
2. Film liners will not leave paper fibers as paper liners can, preventing possible adhesive contamination concerns. This is especially critical for applications in the medical and electronics industries.
3. Film liners are considered more conformable than paper liners, allowing your adhesive tape construction to conform and stretch with more ease on your substrate, as opposed to a paper liner that can potentially crease and pop off.
4. Paper liners are limited in color availability for the most part while film liners offer much more color availability providing more options for desired colored liners for product traceability, identification, etc.
5. Film liners offer much better caliper controlled thicknesses vs paper liners allowing less liner variations for critical applications requiring release liner thickness specifications.
Here are two examples of products with film release liners:
SB132W-Film: This product is commonly used in plastic extrusions, signage, wire raceways, wire mounts and trim. A typical application for this type of construction would include bonding of two irregular surfaces that require gap filling. This adhesive has high immediate bond strength. See our Product Data Sheet for SB132W for more.
SB455B: This product, also available from SpecBond is designed for demanding bonding applications, useful for creating a permanent bond on many foams, high energy plastics, metals, and composite metals. This tape bonds to a wide range of materials, including polyester urethane foams, metals, glass, ceramics and more. See our Product Data Sheet for SC455B for more.
View more film release liners at SpecBond.com
About SpecBond, Inc.
SpecBond, Inc. provides custom product development for the design, manufacturing, and converting of pressure sensitive tape materials for a wide range of industries. Visit them at https://www.specbond.com or contact them at 773-967-0138 or technical@specbond.com.
