BRANOperl siliconised release paper: Efficient separation during the manufacture of base circuit boards

Challenges in the Production of Base Printed Circuit Boards

Pressing processes with fabrics and resins – high demands on release materials

Base printed circuit boards are often produced by pressing glass fabrics with thermosetting resins. During the pressing process, defined pressures and elevated temperatures act on the entire material system. The release material used must withstand these conditions while ensuring a uniform separation effect.

Especially in pressing processes where fabrics and resins are compressed into composite materials under defined pressure and elevated temperature, a consistently effective and reliable release layer is required. Insufficiently matched release materials can lead to adhesion, material transfer, or surface defects.

Typical issues without suitable release paper

Without a suitable release paper, various problems can occur in practice. These include difficult demolding after pressing, uneven surfaces, or resin residues on press plates and tools. Such effects negatively impact downstream process steps and increase cleaning and maintenance efforts, reducing overall production efficiency.

BRANOperl as a silicone-coated release paper in PCB manufacturing

Use of BRANOperl in pressing processes for base PCBs

BRANOperl is specifically used as a silicone-coated release paper in pressing processes for PCB manufacturing. It serves as an interlayer between press plates, tools, and the material layers made of fabrics and resins. The evenly applied silicone coating supports controlled separation after pressing and contributes to stable production processes.

Reliable release performance when processing fabrics and resins

Especially in resin-intensive applications, consistent release performance is essential. BRANOperl prevents resin from adhering to tools or press plates and enables clean separation of the pressed layers. This helps avoid material damage and supports consistently high surface quality, contributing significantly to process reliability.

Result: Optimized pressing processes through the use of BRANOperl

Clean separation of material layers without residues

The use of BRANOperl allows the individual material layers to be cleanly separated after the pressing process. Residues of resin or silicone are avoided, enabling further processing of the base PCBs without additional rework. This is particularly important for subsequent steps such as coating, drilling, or assembly.

Consistent quality and reduced scrap rates

The consistent release performance of BRANOperl leads to reproducible process results. Process fluctuations are reduced, positively affecting product quality and scrap rates. At the same time, cleaning and downtime efforts are minimized, increasing overall production efficiency.

Advantages of BRANOperl as a silicone-coated release paper

BRANOperl combines technical, economic, and ecological properties relevant to industrial pressing and separation processes. The release paper is designed as an environmentally friendly material and represents a sustainable alternative to plastic films.

Its excellent release properties reliably prevent unwanted adhesion. This enables clean and economical processing, as workflows are optimized and rework is reduced.

In addition, BRANOperl offers flexibility in customization. Individual customer printing allows process- or identification-related adaptations. Formats and quantities can also be selected, enabling tailored solutions for different applications.

Another advantage is its easy recycling and disposal. The release paper can be easily integrated into existing recycling systems, supporting efficient material recovery.

Further applications of silicone-coated release paper BRANOperl

• Interlayer for laminate panels in the composites industry
• Interlayer for self-adhesive medical dressings
• Interlayer for photographic materials in the photo industry
• Release paper for labels and self-adhesive stickers in office supplies
• Release paper for liquid bitumen, casting compounds, and rubber processing
• Transfer and release paper for thermal fixation in textile printing
• Release paper for film printing
• Transfer paper for hot-melt adhesives in the plastics industry
• Transfer paper for screen and pad printing
• Carrier paper for web-based materials
• Scratch protection for metal and wood surfaces in furniture manufacturing
• Surface protection in sheet metal processing

Conclusion – Silicone-coated release paper BRANOperl in PCB manufacturing

In the production of base printed circuit boards, suitable release materials are an essential component of stable pressing processes. BRANOperl meets these requirements by providing reliable separation performance when processing fabrics and resins, as well as through its wide range of applications. The use of silicone-coated release paper supports consistent quality, reduced scrap rates, and more efficient production processes in the electronics and PCB industry.

*The content on this page was generated in part with AI support and reviewed by editors.