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

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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庫存編號 199-1424
BrandRS PRO
HK$99.14
單位
- Epoxy Pack 250 g Flame Retardant 24 h 85 Shore D 0.45W/mK Black +120°C -40°C Epoxy Resin, Formaldehyde, Neodecanoic Acid Glycidyl Ester, Polymer with 1, 3 Dimethylbenzene 16.6kV/mm Characteristic
RS庫存編號 199-1402
BrandRS PRO
HK$58.74
單位
- Epoxy Pack 50 g Flame Retardant 24 h 85 Shore D 0.45W/mK Black +120°C -40°C Epoxy Resin, Formaldehyde, Neodecanoic Acid Glycidyl Ester, Polymer with 1, 3 Dimethylbenzene 16.6kV/mm Characteristic
RS庫存編號 195-978
BrandRS PRO
HK$214.40
單位
- PUR Pack 250 g Low Penetrating Viscosity 24 h 12 Shore A 0.2W/mK Transparent Yellow +100°C -60°C Diphenylmethane-4, 4'-Di-Isocyanate 18kV/mm -
RS庫存編號 703-1238
製造零件編號100210-mag
BrandRaytech
HK$267.39
單位
- Plastic Dual Cartridge 210 g Reenterable - - - Blue - - - >20kV/mm -
RS庫存編號 121-3881
製造零件編號ISAAC4MP
BrandRaytech
HK$1,364.14
整套:1 個
Set(s)
- - Pack 30 x 24 x 23 mm - - - - Transparent +90°C - - - -
RS庫存編號 703-1228
製造零件編號Magic-rubber
BrandRaytech
HK$568.67
單位
- Rubber Kit 500 g Dielectric, Elastic Properties, Mechanical Properties, Thermal Conductivity 10 min - - - - - - >20kV/mm Odourless
RS庫存編號 552-668
BrandRS PRO
HK$98.45
單位
- Epoxy Pack 250 g Chemical Resistance, Water Resistance 24 h 80 Shore D 1.26W/mK White +130°C -40°C [(2Ethylhexyl)Oxy]Methyloxirane, Bis[4-(2, Epoxy Resin, Zinc Oxide, 3-Epoxypropoxy)Phenyl]Propane 10kV/mm -
RS庫存編號 121-3882
製造零件編號PASCAL6MP
BrandRaytech
HK$800.01
整套:1 個
Set(s)
- - Pack 38 x 30 x 26 mm - - - - Transparent +90°C - - - -
RS庫存編號 832-4723
製造零件編號WONDER-F280
BrandRaytech
HK$250.88
單位
- Silicone Cartridge 280 ml Even Suitable For Standard Boxes, Ideal For Filling Wonder Joint Enclosures, It Does Not Solidify, No Waste - No Shelf Life, Once Open - - 0.2W/mK Green +200°C -60°C - >23kV/mm -
RS庫存編號 918-4996
製造零件編號834ATH-375ML
HK$502.19
單位
- Epoxy Bottle 375 ml Flame Retardant 45 min 85 Shore D 0.37W/mK Black +200°C -40°C Alkyl Glycidyl Ether, Aluminum Trihydrate, Antimony Trioxide, Bisphenol-A Epoxy Resin, Carbon Black, Heavy Alkylate, Hydrated, Naphtha, Petroleum, Phenyl Glycidyl Ether/formaldehyde Copolymer, Zinc Borate, 1,1'-(1,2-Ethanediyl) Bis[2,3,4,5,6-Pentabromo-Benzene - -
RS庫存編號 918-4974
製造零件編號832B-375ML
HK$286.78
單位
- Epoxy Can 375 ml - 35 min → 24 h - - Black +145°C -30°C Acetone, Ethyl Lactate, Hydrocloric Acid, Isohexanes, Isopropyl Alcohol, Mineral Spirits, Water, Xylene - -
RS庫存編號 183-1677
製造零件編號FOXBOX
BrandRaytech
HK$528.16
單位
- - - - - - - - Grey +90°C - - - -
RS庫存編號 183-1664
製造零件編號Nanofor-2.5
BrandRaytech
HK$71.84
單位
- - Blister - - - - - - +90°C - - - -
RS庫存編號 183-1650
製造零件編號Happy0
BrandRaytech
HK$37.588
/個 (每包:4個)
單位
- - Blister - - - - - Orange +90°C - - - -
RS庫存編號 192-7566
製造零件編號8820-375ML
HK$652.88
單位
- 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庫存編號 918-4986
製造零件編號832C-375ML
HK$272.41
單位
- Epoxy Can 375 ml - 35 min → 24 h - - Translucent +145°C -30°C Alkyl Glycidyl Ether, Bisphenol A, C18-Unsaturated, Dimers, Epoxy Resin, Fatty Acids, Reaction Products with Polyethylenepolyamines, Triethylenetetramine - -
RS庫存編號 283-460
製造零件編號QSIL-553
HK$561.27
單位
QSil 553 Silicone Dual Cartridge 250 g Thermal Conductivity 24 h 32 Shore A 0.68W/mK Grey +260°C -55°C - - -
RS庫存編號 164-321
製造零件編號ER1450RP250G
HK$197.24
單位
ER1450 Epoxy Pack 250 g Water Resistance 2 h 70 Shore A - White +150°C -50°C - - -
RS庫存編號 183-1671
製造零件編號Fred
BrandRaytech
HK$112.64
單位
- - Blister - - - - - - +90°C - - - -
RS庫存編號 458-800
製造零件編號UR5083RP250G
HK$273.22
單位
UR5083 PUR Pack 250 g Water Resistance 48 → 72 h - - Translucent +100°C -60°C - - -