Potting Compounds

Potting compounds are a general-purpose type of sealant that can offer environmental, mechanical and physical protection to circuit boards and electronic assemblies. Used in electronics, potting is a process of filling a complete electronic assembly with a solid or gelatinous compound. The potting compound, once applied, cured and hardened encases your electronics in a solid mass providing a barrier which provides protection from moisture, vibration, thermal or physical shock and general contamination. The mechanical protection enables the components to maintain high performance under extreme conditions. Thermosetting plastics or silicone rubber gels are often used.

Types of compounds:

Epoxy Potting Compounds - Epoxy potting compounds generally have better adhesion, high temperature resistance, and chemical resistance. Epoxy systems have better adhesion to a wide variety of substrates and typically do not need primers. They are easy to use and are predicable. They have good high temperature resistance up to 400°F

Urethane Potting Compounds - Urethane potting compounds generally have better flexibility, elongation, and abrasion resistance. Since they can have Tg below -40°C they are a good selection for SMT PC board potting. Their gel time can be easily changed with an accelerator without changing the properties

Silicone Potting Compounds - Silicone potting compounds and encapsulating materials are also soft, flexible, and have better elongation. Silicone materials also provide the widest operating temperatures. Specially formulated silicone potting compounds can operate at below -100°C and most silicone materials can handle 200°C temperatures.

Acrylic Potting Compounds - Acrylic potting compounds are UV and heat hardening materials. They benefit from very fast hardening, adequate chemical resistance and are clear in appearance


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Description Price Trade Name Product Material Package Type Package Size Special Properties Cure Time Hardness Thermal Conductivity Colour Maximum Operating Temperature Minimum Operating Temperature Chemical Composition Dielectric Strength Odour
RS Stock No. 146-6593
BrandRS PRO
SGD34.39
Each
units
- PUR Pack 250 g Chemical Resistance, Mark Resistance, Scratch Resistance, UV Light Resistance, Weather Resistance, Yellowing Resistance 24 h @ 23 °C, 4 h @ 60 °C 75 Shore A 0.2W/mK Transparent +120°C -40°C Polyurethane Resin 11kV/mm -
RS Stock No. 283-460
Mfr. Part No.QSIL-553
SGD97.85
Each
units
- Silicone Dual Cartridge 250 g Thermal Conductivity 24 h 32 Shore A 0.68W/mK Grey +260°C -55°C - - -
RS Stock No. 448-0236
Mfr. Part No.740010360
SGD34.73
Each
units
- Silicone Cartridge 310 ml - 24 h 24 Shore A 0.2W/mK White +230°C -50°C - - -
RS Stock No. 703-1231
Mfr. Part No.M agic-Gel
BrandRaytech
SGD145.29
Each
units
- Gel Kit 1000 g Dielectric, Low Viscosity, Sealing Characteristics, Thermal Conductivity - - - - - - - >20kV/mm -
RS Stock No. 703-1228
Mfr. Part No.Magic-rubber
BrandRaytech
SGD101.56
Each
units
- Rubber Kit 500 g Dielectric, Elastic Properties, Mechanical Properties, Thermal Conductivity 10 min - - - - - - >20kV/mm Odourless
RS Stock No. 703-1238
Mfr. Part No.100210-mag
BrandRaytech
SGD47.75
Each
units
- Plastic Dual Cartridge 210 g Reenterable - - - Blue - - - >20kV/mm -
RS Stock No. 832-4723
Mfr. Part No.WONDER-F280
BrandRaytech
SGD43.95
Each
units
- Silicone Cartridge 280 ml Even Suitable For Standard Boxes, Ideal For Filling Wonder Joint Enclosures, No Waste - No Shelf Life, Once Open, It Does Not Solidify - - 0.2W/mK Green +200°C -60°C - >23kV/mm -
RS Stock No. 121-3880
Mfr. Part No.KELVIN
BrandRaytech
SGD13.87
1 Set
Set(s)
- - Blister 45 x 45 x 30 mm - - - - Transparent +90°C - - - -
RS Stock No. 121-3877
Mfr. Part No.ISAAC4
BrandRaytech
SGD24.60
1 Set
Set(s)
- - Blister 30 x 24 x 23 mm - - - - Transparent +90°C - - - -
RS Stock No. 121-3882
Mfr. Part No.PASCAL6MP
BrandRaytech
SGD135.02
1 Set
Set(s)
- - Pack 38 x 30 x 26 mm - - - - Transparent +90°C - - - -
RS Stock No. 183-1668
Mfr. Part No.Barney
BrandRaytech
SGD16.26
Each
units
- - Blister - - - - - - +90°C - - - -
RS Stock No. 183-1655
Mfr. Part No.HappyJoint4
BrandRaytech
SGD11.04
Each (In a Pack of 2)
units
- - Blister - - - - - - +90°C - - - -
RS Stock No. 192-7566
Mfr. Part No.8820-375ML
SGD83.83
Each
units
- PUR Bottle 375 ml - 1.5 h @ 80 °C, 2 h @ 65 °C, 48 h @ 22 °C - 0.27W/mK Black +150°C -50°C - 14.9kV/mm -
RS Stock No. 915-9732
Mfr. Part No.Scotchcast 8882 Easy dispenser 250
Brand3M
SGD46.34
Each
units
- - - - - - - - - - - - - -
RS Stock No. 164-292
Mfr. Part No.UR5044RP250G
SGD37.19
Each
units
- PUR Pack 250 g Reenterable 24 h 40 Shore A, 60 Shore A, 80 Shore A 0.25W/mK Blue +120°C -70°C - - -
RS Stock No. 183-1670
Mfr. Part No.Barney-Y
BrandRaytech
SGD35.99
Each
units
- - Blister - - - - - - +90°C - - - -
RS Stock No. 192-7570
Mfr. Part No.9510-300ML
SGD115.10
Each
units
- Epoxy Cartridge 300 ml - 1 h @ 90 °C, 3 h @ 80 °C, 30 min @ 120 °C 84 Shore D 0.3W/mK Black +150°C -65°C - 15.8kV/mm -
RS Stock No. 121-3884
Mfr. Part No.KELVINMP
BrandRaytech
SGD196.43
1 Set
Set(s)
- - Pack 45 x 45 x 30 mm - - - - Transparent +90°C - - - -
RS Stock No. 192-7569
Mfr. Part No.9510-30ML
SGD44.97
Each
units
- Epoxy Cartridge 30 ml - 1 h @ 90 °C, 3 h @ 80 °C, 30 min @ 120 °C 84 Shore D 0.3W/mK Black +150°C -65°C - 15.8kV/mm -
RS Stock No. 121-3879
Mfr. Part No.WATT
BrandRaytech
SGD15.33
1 Set
Set(s)
- - Blister 30 x 38 x 26 mm - - - - Transparent +90°C - - - -
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