Against the backdrop of the rapid development of the electronics manufacturing industry, the printed circuit board (PCB), as the core of electronic products, has sophisticated and stringent protection requirements in its manufacturing process. In critical processes such as wave soldering, selective soldering, and conformal coating, efficient and precise temporary protection of non-oldering areas, precision connectors, and through-holes is essential to ensure product yield and reduce subsequent cleaning costs.
Whereas traditional protection methods such as high-temperature tapes suffer from low adhesion efficiency, edge and corner seepage, and residual glue stains, irregular surface or dense areas are even more difficult to cope with. Nowadays, there is an urgent market need for a flexible, precise, residue-free solution that can adapt to automated production.
Ancham PM7005 strippable adhesive coating from Yaskawa is an innovative product born to address this market demand. As a liquid protective that can quickly solidify into a film after spraying and be completely stripped afterwards, it is gradually becoming the new standard for temporary protection processes in high-end electronic manufacturing, with application scope expanding from traditional consumer electronics to a broader field including automotive electronics, communication devices, and industrial control.
1. Product core features and advantages
Ancham PM7005 is not an ordinary adhesive, but a functional polymer material, and its product characteristics directly target the pain points in production forming unique advantages:
1. Precise protection and perfect separation: This product is a milky white viscous liquid (viscosity: 20000 ± 500 mPa.s), which can be precisely coated by spraying, brushing, etc., and forms a complete layer of rubber film after curing. Its most feature is "easy to peel off". After completing the protection, it can be easily and completely peeled off from the surface of the part, leaving no residue, no corrosion and protecting the surface smoothness of the protected part.
2. Outstanding high temperature resistance: In processes such as wave soldering, materials are required to withstand extremely high temperatures for a short period of time.7005 has excellent short-term heat resistance up to 280℃, ensuring that the protective film does not decompose, carbonize, or lose its protective during welding, providing a reliable guarantee for the quality of the weld.
3. Efficient production, accelerated speed and reduced cost:
• Fast curing: It can be dry and peeled off in about 2 hours 25℃, and only needs 0.5 hours at 70~80℃, which greatly shortens the production waiting time and speeds up the production line.
• Wide process adaptability: The product is suitable for manual and automated operations, and can be seamlessly integrated into existing production lines to meet the different needs of small batch multi-ety and large-scale automated production, providing a "reasonably variable production process plan".
4. Excellent mechanical properties: The cured adhesive film has a tensile strength of 2MPa and a breaking elongation of more than 50%. This means that the adhesive film has a certain strength and excellent toughness, and it is not easy to break during the peeling process, ensuring that it can be completely, while also adapting to the slight deformation of the base material.
5. Safe and environmentally friendly: The product meets environmental protection requirements and provides support for the company's green and sustainable development goals.
2. Typical Application ScenariosBased on the above characteristics, Ancham PM7005 plays a crucial role in the electronic manufacturing:
Application one: Selective solder protection during wave soldering
• Scenario: When performing wave soldering on PCBs containing gold fingers, precision connectors, surfacemounted components, and specific through-holes (such as screw holes), it is necessary to prevent these areas from soldering.
• Solution: Precisely apply or spray PM005 on the areas that need to be protected. After curing, a protective film is formed. When the PCB passes through the tin bath, the protective film effectively the molten solder from contacting. After soldering is completed, the complete peeled film can be discarded, leaving a clean protected area, eliminating the tedious process of traditional adhesive attachment and cleaning.
Application two: Masking protection in conformal coating process
• Scene: When spraying conformal coating on PCB boards, certain connectors, sensor areas, points, etc., need to be protected from being covered by the conformal coating to avoid affecting electrical performance.
• Plan: Use PM7005 to mask these areas and the dense film formed can effectively block the penetration of conformal coating. After the coating process is completed, peel off the protective film, and the protected area is as bright as new ensuring the integrity of the circuit function.
Application Three: Temporary Protection and Marking for Universal Parts
• Scenario: Can be used to protect precision machined surfaces, threaded holes during assembly, preventing scratches or contamination; also suitable for temporary area marking.
• Solution: Utilizing its easy-to-apply and easy-to-remove properties, it provides layer of "invisible clothing" for parts requiring temporary protection, which can be removed after all machining processes are completed, simplifying the management of logistics and assembly processes.
Ancham PM7005 is not just a material, but a systematic solution to enhance the quality and efficiency of electronic manufacturing. By fully leveraging its advantages such as rapid curing, easy separation, and high-temperature resistance, enterprises can optimize production processes, reduce scrap rates, and address increasingly complex manufacturing challenges.
