Potting Compounds

Potting compounds are a general-purpose types 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 perform as a better adhesive, 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 predictable. 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 an excellent 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.

Applications of Potting Compounds

Potting compounds are used in a range of applications such as;

  • Military
  • Industrial
  • Automotive industry
  • PCB's
  • Coils

...
Read more Read less

Filters

Viewing 1 - 20 of 54 products
Results per page
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
MYR105.30
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
MYR293.14
Each
units
QSil 553 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
MYR122.58
Each
units
AS1621 Silicone Cartridge 310 ml - 24 h 24 Shore A 0.2W/mK White +230°C -50°C - - -
RS Stock No. 703-1238
Mfr. Part No.100210-mag
BrandRaytech
MYR166.90
Each
units
- Plastic Dual Cartridge 210 g Reenterable - - - Blue - - - >20kV/mm -
RS Stock No. 832-4723
Mfr. Part No.WONDER-F280
BrandRaytech
MYR131.65
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. 703-1228
Mfr. Part No.Magic-rubber
BrandRaytech
MYR354.96
Each
units
- Rubber Kit 500 g Dielectric, Elastic Properties, Mechanical Properties, Thermal Conductivity 10 min - - - - - - >20kV/mm Odourless
RS Stock No. 703-1231
Mfr. Part No.M agic-Gel
BrandRaytech
MYR493.23
Each
units
- Gel Kit 1000 g Dielectric, Low Viscosity, Sealing Characteristics, Thermal Conductivity - - - - - - - >20kV/mm -
RS Stock No. 121-3884
Mfr. Part No.KELVINMP
BrandRaytech
MYR607.83
1 Set
Set(s)
- - Pack 45 x 45 x 30 mm - - - - Transparent +90°C - - - -
RS Stock No. 121-3883
Mfr. Part No.WATTMP
BrandRaytech
MYR442.56
1 Set
Set(s)
- - Pack 30 x 38 x26 mm - - - - Transparent +90°C - - - -
RS Stock No. 121-3880
Mfr. Part No.KELVIN
BrandRaytech
MYR42.92
1 Set
Set(s)
- - Blister 45 x 45 x 30 mm - - - - Transparent +90°C - - - -
RS Stock No. 164-292
Mfr. Part No.UR5044RP250G
MYR112.10
Each
units
UR5044 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. 192-7564
Mfr. Part No.8800-375ML
MYR218.76
Each
units
- PUR Bottle 375 ml - 24 h @ 22 °C, 25 min @ 80 °C, 30 min @ 65 °C 74 Shore A 0.32W/mK Black +125°C -50°C - 14.6kV/mm -
RS Stock No. 183-1671
Mfr. Part No.Fred
BrandRaytech
MYR58.83
Each
units
- - Blister - - - - - - +90°C - - - -
RS Stock No. 183-1660
Mfr. Part No.Bar
BrandRaytech
MYR53.03
Each
units
- - Blister - - - - - - +90°C - - - -
RS Stock No. 183-1655
Mfr. Part No.HappyJoint4
BrandRaytech
MYR37.955
Each (In a Pack of 2)
units
- - Blister - - - - - - +90°C - - - -
RS Stock No. 183-1663
Mfr. Part No.Nano6
BrandRaytech
MYR37.70
Each
units
- - Blister - - - - - - +90°C - - - -
RS Stock No. 192-7567
Mfr. Part No.9410-3ML
MYR407.29
Each
units
- Epoxy Syringe 3 ml - 1 h @ 90 °C, 30 min @ 100 °C, 7 min @ 150 °C 70 Shore D 1.1 W/mK @ 25 °C, 1.1 W/mK @ 50 °C, 1.2 W/mK @ 100 °C - +145°C -65°C - - -
RS Stock No. 183-1661
Mfr. Part No.Nano3
BrandRaytech
MYR21.463
Each (In a Pack of 4)
units
- - Blister - - - - - - +90°C - - - -
RS Stock No. 183-1659
Mfr. Part No.Ohm
BrandRaytech
MYR44.13
Each
units
- - Blister - - - - - - +90°C - - - -
RS Stock No. 183-1665
Mfr. Part No.Nanofor-4
BrandRaytech
MYR44.42
Each
units
- - Blister - - - - - - +90°C - - - -