Potting Resins

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Casting & Potting Resins Area

The resins can enhance the integrity of electronic devices, improve their resistance to external impact and vibration, prevent direct exposure of components and circuits, and provide waterproof, moisture-proof, dust-proof, thermal conductivity, confidentiality, corrosion resistance, and temperature resistance properties.

For General Types

They include three types: epoxy, polyurethane, and silicone, predominantly with double-component. They can be categorized into two types based on the curing method: ambient curing and heat curing. They can also be divided into various types based on their performance, such as flame retardant, thermal conductive, and low modulus. Rongtai Technology is a professional epoxy resin supplier and wholesaler for electric insulating.

Item No.Base ResinUnique CharacteristicsViscosity

@25℃ mPa·s

Mix RatioCure ScheduleFlame retardant GradeThermal Conductivity(W/m·K)HardnessThermal Class
SW-729-9Epoxy ResinMedium temperature curing, excellent liquidity, good flame retardant, high strength2000-8000100:25~3585℃@6h/105℃@2hV-00.4-0.680-90D130℃
SW-729-11Epoxy ResinDouble-filled medium temperature cure, excellent liquidity, flame retardant, high strength, low CTE(Coefficient of Thermal Expansion)25000-45000100:10085℃@6h/105℃@2hV-00.690D155℃
SW-729-8Epoxy ResinMedium viscosity, fast curing, good adhesion,  anti-crack150000-250000100:18~20100℃@0.5h/23℃@12hV-00.680D155℃
SW-729-7Epoxy ResinLow viscosity, anti-crack, low shrinkage, shiny surface8000-30000100:20~2523℃@12h/80℃@1hV-00.580D155℃
SW-729-7
Extra Clear
Epoxy ResinNon-filled and self-drying products, good for water pump cable sealing2000-3000100:30~4023℃@2h————75D130℃
SW-729-35Epoxy ResinNon-filled and self-drying product, high stiffness, good for water pump cable sealing2300-3300100:45~5023℃@2h————80D130℃
SW-729-6Epoxy ResinHigh cost-effectiveness8000-20000100:1523℃@12h/80℃@1h——0.570D130℃
SW-729-6
Enhanced
Epoxy ResinFilling aluminum casting water pumps15000-21000100:1023℃@12h——0.570D130℃
Epoxy ResinPotting shielded pump5500-7500100:1723℃@12h/80℃@1hV-00.775D155℃
SW-729-42Epoxy ResinHigh strength, low curing shrinkage,  low CTE(Coefficient of Thermal Expansion)40000-90000100:1080℃@2h+120℃@2hV-00.985D180℃
SW-729-47Epoxy ResinHigh thermal conductivity, medium viscosity, excellent liquidity, fast curing100000-200000100:780℃@2hV-01.390D155℃
SW-729-48Epoxy ResinAddition system, high thermal conductivity, good liquidity30000-70000100:780℃@2hV-01.590D155℃
SW-729-4DZEpoxy ResinExcellent liquidity, high thermal conductivity, flame retardant,  anti-crack6000-35000100:1323℃@12h/100℃@1hV-00.980D155℃
SW-729-5Epoxy ResinExcellent liquidity, fast curing, good flexibility, high hardness, low modulus8000-12000100:1623℃@12h/100℃@1hV-00.775D155℃
SW-729-4Epoxy ResinExcellent processability, medium curing speed8000-12000100:1880℃/2h——0.580D130℃
SW-727-9SiliconeAddition system, low curing shrinkage2000100:10023℃@6h/80℃@10minV-00.6560A200℃
SW-727-11SiliconeAddition system, low cost2500100:10023℃@6h/80℃@10minV-00.7560A200℃
SW-727-12SiliconeAddition system, high flow, potting for small gaps1000100:10023℃@10h/80℃@30minV-10.4368A200℃
SW-727-15SiliconeAddition system, red color, high strength, good heat resistance2000100:10023℃@6h/80℃@10minV-00.5560A250℃
SW-727-8SiliconeAddition system, good thermal conductivity, good  liquidity2900100:10023℃@6h/80℃@10minV-0160A200℃
SW-727-7SiliconeAddition system, high thermal conductivity, good  liquidity5700100:10023℃@6h/80℃@10minV-01.667A200℃
SW-727-32SiliconeAddition system, high thermal conductivity, good  liquidity8000100:10023℃@6h/80℃@10minV-0270A200℃
SW-727-33SiliconeAddition system, high thermal conductivity, good liquidity15000100:10023℃@6h/80℃@10minV-0378A200℃
SW-727-TSiliconeAddition system, transparent1000100:10023℃@6h/80℃@10min————30A200℃
SW-727-T5SiliconeAddition system, transparent, strong bond strength500100:10060℃@1h/80℃@30min————18A200℃
SW-727-T51SiliconeAddition system, transparent, Gel900100:10023℃@6h/80℃@10min————190Cone penetration200℃
SW-727-4SiliconeCondensation system, easy mixing ratio, good adhesion900100:2023℃@24h——0.5548A200℃
SW-727-3SiliconeCondensation  system, good adhesion900100:1023℃@24h——0.5548A200℃
SW-727-2SiliconeCondensation  system, flame retardant, matte color available900100:1023℃@24hV-10.431A200℃
SW-727-T6SiliconeCondensation  system, transparent, good adhesion600100:1023℃@24h30A200℃
SW-728-53PolyurethaneSoft, low-temperature resistance, good adhesion1300100/3023℃@12h/80℃@1hV-00.450A130℃
SW-728-271PolyurethaneLow viscosity, vibrate resistance, shiny surface600100/2023℃@12h/80℃@1hV-00.575A130℃
SW-728-B3PolyurethaneFlexible, vibrate resistance, shiny surface1100100/1723℃@12h/60℃@4hV-00.680A130℃
SW-728-32Polyurethanegood adhesion, vibrate resistance, fast curing1000100/2523℃@12h/80℃@1hV-00.690A130℃
SW-728-13PolyurethaneExtra low viscosity, vibrate resistance, shiny surface500100/3323℃@12h/80℃@1hV-00.450D130℃
SW-728-36Polyurethanehigh hardness, low shrinkage, vibrate resistance, good water resistance1200100/2023℃@12h/80℃@1hV-00.6570D130℃
SW-728-39PolyurethaneHigh thermal conductivity, strong water resistance, resistance to cold  thermal shock2500100/1423℃@12h/80℃@1hV-0140D130℃
SW-728-T2PolyurethaneTransparent, soft, low-temperature resistance, waterproof350100/2023℃@12h/80℃@1hV-0——30A130

For Rotating Motors

They are mainly epoxy resin-based, including some silicone-based potting products. They possess excellent flow-ability, high penetration, low shrinkage, resistance to thermal shocks, good thermal conductivity, and high heat resistance, which are suitable for potting various motors.

Item No.Base ResinUnique CharacteristicsViscosity @25℃ mPa·sMix RatioCure ScheduleFlame retardant gradeThermal Conductivity(W/m·K)HardnessThermal Class
SW-729-1EEpoxy ResinHigh thermal conductivity, high strength, anti-crack, heat resistance800-1500 @80℃100:10080℃ @5h+100℃@ 4h+130℃@6h——1.090D155℃
SW-729-8Epoxy ResinMedium viscosity, fast curing, good adhesion, anti-crack150000-250000100:18~20100℃@0.5h/23℃@12hV-00.680D155℃
SW-729-6
Enhanced
Epoxy ResinFilling aluminum casting water pumps15000-21000100:1023℃@12h——0.570D130℃
Epoxy ResinPotting shielded pump5500-7500100:1723℃@12h/80℃@1hV-00.775D155℃
SW-729-68Epoxy ResinHigh strength, low curing shrinkage,  low CTE(Coefficient of Thermal Expansion)40000-90000100:1080℃@2h+120℃@2hV-00.985D180℃
SW-729-63Epoxy ResinHigh thermal conductivity, medium viscosity, excellent liquidity, fast curing100000-200000100:780℃@2hV-01.390D155℃
SW-729-62Epoxy ResinHigh thermal conductivity, medium viscosity, excellent liquidity, fast curing30000-70000 100:780℃@2hV-01.590D155℃
SW-729-4DZ Epoxy ResinExcellent liquidity, high thermal conductivity, flame retardant,  anti-crack6000-35000 100:1323℃@12h/100℃@1hV-00.980D155℃
SW-729-5Epoxy ResinExcellent liquidity, fast curing, good flexibility, high hardness, low modulus8000-12000100:1623℃@12h/100℃@1hV-00.775D155℃
SW-729-4Epoxy ResinExcellent processability, medium curing speed8000-12000100:1880℃/2h——0.580D 130℃
SW-529-8Epoxy ResinFlame retardant, heat resistant, good resistance to cracking1000-2000 @60℃100:980℃@2h+100℃@2hV00.885D180℃
SW-727-77SiliconeAddition system, high thermal conductivity, good liquidity15000100:10023℃@6h/80℃@10minV-0378A200℃

For Linear Motors

It has the characteristics of good fluidity, low shrinkage, low coefficient of linear expansion, resistance to cold and thermal shock, and high thermal conductivity. It is suitable for pouring and packaging various types of linear motors.

For Power Transformers

They cover the potting of small electronic components and the casting of large dry-type transformer coils. They have good flowability and excellent insulation performance and are especially characterized by low shrinkage and good crack resistance.

Item No.Base ResinUnique CharacteristicsViscosity

@25℃ mPa·s

Mix RatioCure ScheduleFlame retardant GradeThermal Conductivity(W/m·K)HardnessThermal Class
SW-729-DEpoxy ResinVacuum cast resin, flexibility,anti-crack, easy to penetrate700-1200 @80℃100:10080℃ @5h+100℃@ 4h+130℃@6h——0.685D155℃
SW-729-8Epoxy ResinMedium viscosity, fast curing, good adhesion,  anti-crack150000-250000100:18~20100℃@0.5h/23℃@12hV-00.680D155℃
SW-729-7Epoxy ResinLow viscosity, anti-crack, low shrinkage, shiny surface8000-30000100:20~2523℃@12h/80℃@1hV-00.580D155℃
SW-729-75Epoxy ResinNon-filled and self-drying product, high stiffness, good for water pump cable sealing2300-3300100:45~5023℃@2h————80D130℃
SW-729-6
Enhanced
Epoxy ResinFilling aluminum casting water pumps15000-21000100:1023℃@12h——0.570D130℃
Epoxy ResinPotting shielded pump5500-7500100:1723℃@12h/80℃@1hV-00.775D155℃
SW-729-68Epoxy ResinHigh strength, low curing shrinkage,  low CTE(Coefficient of Thermal Expansion)40000-90000100:1080℃@2h+120℃@2hV-00.985D180℃
SW-729-63Epoxy ResinHigh thermal conductivity, medium viscosity, excellent liquidity, fast curing100000-200000100:780℃@2hV-01.390D155℃
SW-729-62Epoxy ResinHigh thermal conductivity, medium viscosity, excellent liquidity, fast curing30000-70000100:780℃@2hV-01.590D155℃
SW-729-4DZ Epoxy ResinExcellent liquidity, high thermal conductivity, flame retardant,  anti-crack6000-35000100:1323℃@12h/100℃@1hV-00.980D155℃
SW-729-5Epoxy ResinExcellent liquidity, fast curing, good flexibility, high hardness, low modulus8000-12000100:1623℃@12h/100℃@1hV-00.775D155℃
SW-729-4Epoxy ResinExcellent processability, medium curing speed8000-12000100:1880℃/2h——0.580D 130℃

For Special Field

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