Bectron® AR 4820 N is a 1-component resin based on polyurethane with moderate viscosity which cures rapidly by reaction with moisture in the atmosphere to form a flexible material suitable for sealing and protection of components and connections on the PCB. Bectron® AR 4820 N satisfies the requirements of ROHS.
FEATURES
- Good electrical properties even after water immersion.
- Good adhesion on many substrates
- Low shrinkage on curing
- Withstands low temperature (-45°C)
- Resistant to moisture and migration
- Resistant to organic and inorganic solvents
APPLICATIONS OF AR 4820 N
Bectron® AR 4820 N is used for chemical protection of PCBs against moisture and contamination and for securing large components on the board against mechanical shock and vibration. It is an effective adhesive on most surfaces of PCBs and electronic components. It has viscosity suitable for thick film coating of large areas selectively on individual components contacts or sealing open connections on the PCB. The applied material will remain in place during curing with no stress on delicate components protected. The cured product is soft and flexible and will not damage sensitive components under thermal shock, including low temperatures.
ABOUT PROSTECH
Prostech provides specialized manufacturing and bonding solutions for a wide range of industries, serving as an authorized distributor of leading global manufacturers of industrial materials and equipment. Our product range is focused and in-depth, with the aim of delivering “customized” solutions tailored to each customer’s specific applications and needs. Browse our full selection of products here.
Our dedicated technical team is always ready to assist our customers in:
- Testing sample quality and verifying product compatibility in our laboratory
- Providing expert advice on suitable equipment and automation processes
- Customizing material formulas to meet special application requirements
- Customizing product sizes, quantities, and packaging according to customer needs
- Offering technical training and on-site support to ensure optimal use of our products
Prostech ensure the safe and acurrate delivery of all types of materials, including “dangerous goods,” in compliance with legal regulations.
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| Property | Condition | Value | Unit |
|---|---|---|---|
| Colour | Colourless | ||
| Viscosity DIN 53019 | 23°C, D=3 s⁻¹ | 7,000 ± 2,000 | mPa.s |
| Specific gravity DIN EN ISO 2811-1 | 23°C | 0.99 ± 0.05 | g/cm³ |
| Shelf Life | 5 – 10 °C | 12 | weeks |
