UL-94v0 SFY-131 AB glue silicon resin potting sealant for electronic components

SFY-131 AB glue silicon resin potting sealant for electronic components
Since 1983, FONG YONG CHEMICAL CO., LTD. has been a main Taiwan manufacturer for liquid silicone rubber for potting, sealing, coating and supply globally. OEM/ODM orders are welcome.
SFY-131 is a two-part with good flow ability addition curing RTV silicone rubber. It is mainly designed for electrical and electronic potting, such as power supplies, connector, sensor, relay, high voltage resistor pack, and LED pottings. It is suitable for batch processing or automated dispensing. With different colors for better distinction, SFY-131A and SFY-131B are black and white, respectively. It can be cured in a 1:1 ratio by weight or volume either at room temperature or elevated temperature for faster processing. The cured mixture is a black flexible elastomer. The elastomer has excellence in electrical properties and waterproof, fire resistance and weather resistance. Those properties are not significantly affected by the changes of temperature. It does not contain hazardous substancesin the candidate lists of Restriction of Hazardous Substances (RoHs) and Substances of Very High Concern (SVHC) for green environmental protection.
Features:1. No corrosive and no cure by-product.2. Equal amount of mixing ratio, good fluidity, easy processing.3. Easy distinction of the two parts and inspection of complete mixing.4. No significant exotherm or shrinkage during curing.5. Flexible curing schedule, can be cured at room temperature (R.T.) or at elevated temperature.6. Very stable to changes of temperature, stability over wide temperature range (-50 to 200 oC).7. Good fire resistance meets the level of UL94V0.8. Excellent dielectric properties for maintaining and protection of existing electrical insulation requirements.9. Excellent weather resistance and waterproof property for protection from moisture and dust contamination.10.Relative easier removal benefits to repair of electrical/electronic devices.11.Green environmental protection materials.
How to use1. Prior to use, thoroughly stir SFY-131 A and SFY-131B individually. Be sure no precipitation on the bottom of container. 2. Put SFY-131A and SFY-131B in a ratio of 1:1(by weight or by volume) into a clean container with triple volume of the mixture volume. Inspect if the mixture is completely mixed by the homogeneity of color.3. During or after mixing two parts, the air entrapment should be removed under vacuum.4. Potting or encapsulating.
Cured at room temperature (R.T.) or at elevated temperature as shown on the characteristics table for reference. Cure time can be varied slightly due to dimension and thermal mass of your parts. Longer heating time should be provided for larger amount or thicker mixture, according to the amount and thickness of mixture.
5.If repairing is needed, just simply cut with a knife or sharp blade and remove from the area to be repaired. Re-pot in place of new mixture of SFY-131A / SFY-131B on the repaired area after repair.
Characteristics
SFY-131A (BK, GY)
SFY-131B
Appearance
Black or Gray Liquid
Cream white Liquid
Specific Gravity (25oC)
1.30
1.30
Viscosity (cps, 25oC)
6,000
5,000
Mixing Ratio
1 : 1
Pot life (25oC, 100g)
60 min
Cure Condition (100 g)
150 oC: 10 minShrinkage (%)
0.2
Hardness (Shore A)
50
Water Absorption (24hrs, %)
< 0.05
Tensile strength (psi)
220
Elongation (%)
125
Thermal conductivity (W/mK)
0.4
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