Author: Site Editor Publish Time: 2026-02-03 Origin: Site
Release paper is a crucial auxiliary material in many fields, including modern composite material processing, label printing, and the electronics industry. In particular, selecting the appropriate release paper type is crucial not only for product quality but also for overall production efficiency and cost control in the manufacturing of carbon fiber and mold release materials. This article will delve into the differences between silicone-coated and non-silicone-coated release paper, providing a professional analysis from multiple perspectives, including structural characteristics, application scenarios, performance, and purchasing recommendations, to help you make an informed choice.
Silicone-coated release paper is a release material coated with a silicone release agent (usually polysiloxane). This coating has an extremely low surface tension, resulting in excellent release properties and easy separation from a variety of adhesive materials, such as epoxy resins, pressure-sensitive adhesives, and prepregs.
Non-silicone-coated release paper is a release paper that has not been treated with silicone. It typically achieves a certain release effect by leveraging the structural properties of the substrate itself (such as supercalendered paper and glassine paper). This type of product is primarily used in applications with low adhesion and less demanding process requirements.
Release agents are key to achieving effective release. Silicone-coated release paper relies on surface siliconization to form a dense protective layer, enabling efficient release. Non-silicone-coated release paper, on the other hand, relies on the paper's surface smoothness, calendering, and physical isolation achieved through specific coating treatments.
Silicone-coated release paper: Controllable release force and strong stability make it particularly suitable for industrial products requiring precise release, such as prepregs and carbon fiber composites.
Non-silicone-coated release paper: Release force relies on the substrate itself, resulting in poor stability and susceptible to humidity and temperature effects, leading to the risk of uneven release.
Silicone-coated paper has excellent temperature resistance and can withstand high-temperature curing environments (such as carbon fiber hot press molding). Its silicone component also exhibits excellent chemical inertness, making it resistant to a variety of resin systems.
Uncoated paper, on the other hand, is prone to problems such as sticking, residue, and paper cracking when exposed to high temperatures or highly viscous materials, limiting its application in high-end applications.
Silicone-coated release paper undergoes multiple coating and calendering processes, resulting in high surface smoothness, which facilitates product surface quality control. Uncoated paper performs poorly in this regard and is more prone to instability, especially in high-volume continuous production.
Uncoated release paper has significantly lower production costs than silicone-coated paper and is therefore often used in low-cost, short-run, and less demanding applications. However, silicone-coated release paper offers a better price-performance ratio for high-end processes, reducing scrap and improving efficiency.
In carbon fiber processes such as prepreg molding and hot press molding, release liners must possess high-temperature resistance, resin resistance, and a smooth surface. Silicone-coated release liners are the only viable solution. Non-silicone-coated products simply cannot meet these technical requirements.
For high-performance silicone-coated release liners suitable for carbon fiber product production, contact Revolve CF, a professional release paper supplier with extensive experience and a high-quality product line in carbon fiber release materials.
This industry places particular emphasis on clean, residue-free release. Silicone-coated release liners are particularly crucial in high-speed processes such as automated labeling and roll-to-roll printing. Using non-silicone-coated paper can easily lead to adhesive damage or labeling failure.
Non-silicone-coated release liners can be an alternative for certain applications, such as disposable paper cups and baking mats, where adhesion is weak and cost is a concern. For example, paraffin paper and super-calendered paper also have a certain anti-sticking effect.
Precision processes such as electronic packaging, circuit board protective films, and temporary transfer films require extremely high cleanliness and release force accuracy for release paper. Siliconized release paper is the preferred choice, and double-sided silicone-coated or electronic-grade release paper is often used.
For high-precision manufacturing applications such as high-temperature molding and carbon fiber prepreg, medium-to-high weight (≥90g) silicone-coated paper with high release force is recommended.
For short-term protective films or ambient temperature label printing, economical silicone-coated paper can be used.
For food packaging or low-viscosity applications, cost-sensitive scenarios may consider non-silicone-coated paper.
Release paper is not a standard product but must be customized according to process parameters. High-quality suppliers can provide customized development, technical support, and small batch testing services, significantly reducing development costs and trial-and-error risks. As a professional release paper supplier, Revolve CF not only offers a wide range of silicone-coated release papers but also provides customized solutions for industries such as carbon fiber prepreg and composite mold release. For more information, please visit https://www.revolve-cf.com or email HarveyXu@revolve-cf.com.
With the advancement of global carbon neutrality policies, more companies are focusing on the recyclability and environmental standards of release materials. Silicone-coated release paper is more complex to recycle, while non-silicone-coated paper has a slight advantage in this regard. However, some suppliers are developing soluble or bio-based release coatings, which hold promise for future market growth.
Although both silicone-coated and non-silicone-coated release papers are release materials, they differ fundamentally in performance, application, and cost. The former is more suitable for specialized manufacturing scenarios requiring high precision, strong adhesion, and high-temperature environments, while the latter occupies a niche in cost-driven markets. When selecting release paper, consider the material properties, process temperature, adhesive type, and release method. Prioritize working with experienced release paper suppliers to ensure product quality and production efficiency.
If you require high-performance release paper for carbon fiber processing and demolding, please contact Revolve CF Release Liner by emailing HarveyXu@revolve-cf.com or visiting https://www.revolve-cf.com for one-on-one professional service.
