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$101.12
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$59.91
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$234.20
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$272.74
單位
- Plastic Dual Cartridge 210 g Reenterable - - - Blue - - - >20kV/mm -
RS庫存編號 703-1228
製造零件編號Magic-rubber
BrandRaytech
HK$580.04
單位
- Rubber Kit 500 g Dielectric, Elastic Properties, Mechanical Properties, Thermal Conductivity 10 min - - - - - - >20kV/mm Odourless
RS庫存編號 121-3881
製造零件編號ISAAC4MP
BrandRaytech
HK$1,331.68
整套:1 個
Set(s)
- - Pack 30 x 24 x 23 mm - - - - Transparent +90°C - - - -
RS庫存編號 918-4996
製造零件編號834ATH-375ML
HK$490.23
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 552-668
BrandRS PRO
HK$100.42
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$816.01
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$246.07
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 183-1661
製造零件編號Nano3
BrandRaytech
HK$41.093
/個 (每包:4個)
單位
- - Blister - - - - - - +90°C - - - -
RS庫存編號 183-1679
製造零件編號100004-002
BrandRaytech
HK$197.49
單位
- - - - - - - - - +90°C - - - -
RS庫存編號 183-1662
製造零件編號Nano5
BrandRaytech
HK$57.185
/個 (每包:2個)
單位
- - Blister - - - - - - +90°C - - - -
RS庫存編號 918-4999
製造零件編號832HT-375ML
HK$640.26
單位
- Epoxy Can 375 ml - 10 min → 24 h - - Black +200°C -30°C C18-Unsaturated, Carbon Black, Dimers, Fatty Acids, Phenyl Glycidyl Ether/Formaldehyde Copolymer, Reaction Products with Polyethylenepolyamines, Triethylenetetramine - -
RS庫存編號 183-1671
製造零件編號Fred
BrandRaytech
HK$109.96
單位
- - Blister - - - - - - +90°C - - - -
RS庫存編號 183-1659
製造零件編號Ohm
BrandRaytech
HK$82.47
單位
- - Blister - - - - - - +90°C - - - -
RS庫存編號 183-1667
製造零件編號Bravo3-6
BrandRaytech
HK$102.11
單位
- - Blister - - - - - - +90°C - - - -
RS庫存編號 725-9997
製造零件編號ER2218RP250G
HK$171.86
單位
ER2218 Epoxy Pack 250 g Flame Retardant 24 h 55 Shore D, 90 Shore A 0.28W/mK Black +150°C -50°C - - -
RS庫存編號 146-2865
製造零件編號832HD-25ML
HK$143.79
單位
- Epoxy Dual Cartridge 25 mL Chemical Resistance, Harsh Resistance, Salt Water Resistance 24 h @ +25°C 80 Shore D 0.27W/mK - +150°C -40°C - 15.8 kV/mm, 400 V/mil Ammoniacal, Sulphurous
RS庫存編號 164-315
製造零件編號ER2195RP250G
HK$138.24
單位
ER2195 Epoxy Pack 250 g Flame Retardant 36 h 80 Shore D 0.45W/mK Black +130°C -40°C - - -