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Home > Product > conformal coating > Becoat 9067
Becoat 9067 Low viscosity Solvent type silicone conformal coating
Type
one-part, moisture-cure, Solvent type; low viscosity
Physical Form
cure to flexible elastomers as film
Special Properties
- Room-temperature;
- resist humidity and other harsh environments;
- Easily removable;
- good dielectric properties;
- self-priming adhesion;
- prevent PCB board suffering humid and corrosive
- Becoat 9067 is a one-component, solvent type conformal coating ,based on silicone. It cures on exposure by moisture to form an elastic silicone rubber
- Becoat 9067 has excellent corrosion-free adhesion to metals, including copper, plastics, ceramics, glass, etc, without the use of
- Excellent high and low temperature resistance: from –60℃to250℃.
- Stably under working temperature 200? for longterm
- Excellent weather ability, water and chemicalresistance
- Excellent electrical insulation
- Simple and easy-to-use one-component
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TYPICAL UNCURED PROPERTIES |
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BECOAT 9067 |
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Appearance |
COLOR |
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Solid content |
70% |
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Specific GravityCg/cm33, GB/T 15223-1994 |
0.95±0.05 |
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25ŠTack-free Time(min), GB/T13477-2002 |
25±5 |
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TYPICAL CURED PROPERTIES (7 DAYS @ 25?/55%RH) |
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Hardness, Shore A, GB/T 531-2008 |
20 |
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Tensile strength (Mpa), GB/T 528-2009 |
>0.6 |
- Household control module;
- Impregnated transformers;
- Inductive protection;
- Tough and flexible PCB coating;
- LED lights’ surface coating;
- Clean the surface thoroughly, keep dry and loose debrisoClean with a solvent.
- Spraying with a dispenser. Thinner dosage recommendations for 30~50%. Diluent recommends the use of toluene and petroleum ether, do not use solvent such as alcohols, ketones.
- Dip-coating process. dip the PCB into the glue, and stay for about 10seconds to avoid bubbles.
How to apply
Apply a bead of Becoat 9067 Adhesive/Sealant (see Handling Precautions) to one of the prepared surfaces.
On exposure to moisture, the freshly applied material will “skin-over” in about 20-30 minutes at room temperature and 50% relative humidity. Any tooling should be completed before this skin forms. The surface is easily tooled with a spatula. The adhesive/sealant will be tack-free in approximately 30 minutes.
Cure time
In 24 hours (at room temperature and 50% relative humidity) Becoat 9067 Adhesive/Sealant will cure to a depth of about 2-3mm. If deeper sections, especially when access to atmospheric moisture is restricted, will take longer to cure completely.
Cure time is extended at lower humidity levels. Before handling and packaging bonded components, users are advised to wait a sufficiently long time to ensure that the integrity of the adhesive seal is not affected. This will depend on many factors and should be determined by the user for each specific application.
To reach stable property, it’s better to rise the temperature step by step, for example, after cured 7 days, heat the sealant on 150℃ for
5 hours, then 200℃ for 4hours, 230℃ for 4hours, 250℃ for 3 hours ,and 280℃ for 2hours.
[auth-download url=”https://beginor-chemical.com/wp-content/uploads/2019/03/TDS-of-Becoat-9067-conformal-coating.pdf” title=”TDS Download BeCoat 9067″]
