Encapsulation of Electronic Components

Epoxy and acrylate resin based sealing and potting compounds are often used in electronics to protect electronic components, semiconductors and subassemblies. The encapsulation protects components from moisture, dust, dirt and solvents. Used to fill cavities or encapsulate components, sealing compounds also provide effective protection from mechanical stress.

All Panacol sealing or potting compounds are made without solvent and many have a low ionic content of less than 10 ppm Na+, K+, Cl- and Br-. They therefore provide perfect protection from internal corrosion and reduce local voltaic coupling. 

Many sealing compounds are UV-curing, allowing rapid setting in just a few seconds. This makes them suitable for encapsulating components in fully automated high-volume production.
 
Thermally curing potting compounds, on the other hand, have the advantage of curing even in dark areas that the UV light cannot reach. These encapsulants are also available in black colour for use as a coating or covering. 

Black glob tops are used to protect chips

A black sealing compound is used to protect mass-produced chips

The table below lists a selection of encapsulants, sealing and potting compounds from Panacol. Further products and custom solutions are available on request.

To download the technical datasheets (TDS) please click on the adhesive name.

Potting Compound Viscosity [mPas] Base Curing* Properties
Structalit® 5511 800-1,200 epoxy thermal at 60°C Non-conductive
Outstanding adhesion to high performance
plastics (LCP, PBT)
High purity
Electronic grade standard
Structalit® 5521 1,200-2,000 (Rheometer, 25°C, 10s^-1) epoxy thermal at 60°C Non-conductive
Outstanding adhesion to high performance
plastics (LCP, PBT)
High purity
Electronic grade standard
Flexible
Structalit® 5531 5,000-10,000 (Rheometer, 25°C, 10s^-1) epoxy thermal at 60°C Non-conductive
Outstanding adhesion to high performance plastics (LCP, PBT)
High purity
Electronic grade standard
Good mechanical stability
Good chemical resistance
Structalit® 5800 7,000-15,000 mix (LVT, 25°C, Sp. 4/30 rpm) 2-part epoxy thermal, room temperature High temperature resistance
short pot life
fast application
Structalit® 5801 12,000-22,000 mix, 10,000-20,000 part A, 18,000-29,000 part B, (Rheometer, 25 °C, 10s^-1) 2-part epoxy thermal, room temperature Black color
Excellent oil, chemical and moisture resistance
Low shrinkage
Low water absorption
Good adhesion to metal, glass and plastics
Structalit® 5802 40,000-65,000 mix (Rheometer, 25°C, 10s^-1) 2-part epoxy thermal, room temperature Dark grey color
Excellent oil, chemical and moisture resistance
Low shrinkage
Low water absorption
Good adhesion to metal, glass and plastics
Flame classification based on UL 94 HB

Structalit® 5810-1 3,000-4,000 mix (LVT, 25°C, Sp. 4/30 rpm) 2-part epoxy thermal
room temperature
Very high adhesion to PC
resistant to moisture and chemicals
Structalit® 5891 25,000-50,000 ( Rheometer, 25 °C, 10s-1 ) epoxy thermal Black color
fast curing at low temperatures
impact resistant
Structalit® 5891 T 80,000-150,000 (Rheometer, 25 °C, 10s^-1 ) epoxy thermal Black color
stable frame material, can be applied wet-in-wet with filling material, suitable for frame stacking
stable edges
resistant to shocks
Structalit® 5893 6,000-10,000 (Rheometer, 25°C, 10s^-1) epoxy thermal Black color
excellent flow properties
filling material for frame&fill applications
high resistance to heat and chemicals
certified to ISO 10993-5 standards
Structalit® 5894 M 20,000-30,000 (Rheometer, 25 °C, 20s ^-1) epoxy thermal Black color
excellent flow properties
filling material for frame and fill applications on PCBs,
very high resistance to heat and chemicals
Structalit® 8801 30,000-45,000 (LVT, 25°C, Sp. 4/6 rpm) epoxy thermal Resistant to oils, grease and fuels
excellent flow properties
beige color
certified to ISO 10993-5 standards
Structalit® 8801 black 30,000-45,000 epoxy thermal Resistant to oils, grease and fuels
black color
excellent flow properties
Structalit® 8801 T 16,000-30,000 (Rheometer, 25 °C, 5s^-1) epoxy thermal Resistant to oils, grease and fuels;
Stable;
Fast curing at low temperatures
Structalit® 8805 30,000-45,000 epoxy thermal Resistant to oils, grease and fuels
excellent flow properties
beige color
Structalit® 8838 6,500-7,500 (Rheometer, 25°C, 20s^-1) epoxy thermal Black color
flexible potting compound
excellent flow properties
Structalit® 8926 30,000-45,000 epoxy thermal Resistant to oils
grease and fuels
excellent flow properties
beige color
Vitralit® 1600 LV 3,000-5,000 epoxy UV
secondary heat cure
Very high Tg
low water absorption
low ion content
very high chemical resistance
Vitralit® 1605 200-400 (LVT, 25°C, Sp. 2/30 rpm) epoxy UV
secondary heat cure
low shrinkage
low heat expansion
very high tg
excellent chemical resistance
certified to ISO 10993-5 standards
Vitralit® 1650 3,000-5,000 epoxy UV Electronic grade
low ion content
suitable for chip protection
UL94 HB test passed
Vitralit® 1655 150-300 (Brookfield LVT, 25 °C, Sp. 2/30 rpm) epoxy UV
secondary heat cure
flexible
certified to USP Class VI and ISO 10993-5 standards
resistant to all common sterilization methods
Vitralit® 1657 5,000-15,000 epoxy UV Low ion content
excellent chemical resistance
low water absorption
suitable for covering open bonded chips
Vitralit® 1671 9,000-14,000 (Rheometer, 10s^-1) epoxy UV
secondary heat cure
Stable frame compound
high ion purity
electronic grade adhesive
high temperature conductivity
low water absorption
UL94 HB test passed
Vitralit® 1680 5,000-8,000 epoxy UV Very high resistance to heat and humidity
electronic grade adhesive
low ion content
suitable for chip protection
Vitralit® 1688 1,200-2,000 epoxy UV Excellent flow properties and leveling
electronic grade adhesive
low ion content
suitable for chip protection
excellent resistance to heat and humidity
Vitralit® 1691 20,000-40,000 epoxy UV
secondary heat cure
black color
high ion purity
electronic grade adhesive
high temperature resistance
fast surface curing with UV light
Vitralit® 1720 2,700-3,700 (LVT, 25 °C, Sp. 2/6 rpm) epoxy UV High temperature resistance
Vitralit® 1722 5,000-8,000 (LVT, 25 °C, Sp. 4/30 rpm) epoxy UV Very high adhesion to most thermoplastics
low shrinkage
high temperature resistance
Vitralit® 2004 F 60-100 (LVT, 25 °C, Sp. 2/30 rpm) epoxy UV
secondary heat cure
fluorescing
flexible
autoclavable
dry surface after curing
low ion content
sprayable
Vitralit® 2007 F 150-350 (LVT, 25 °C, Sp. 2/30 rpm) epoxy UV
secondary heat cure
fluorescing
flexible
autoclavable
excellent chemical resistance
low ion content
Vitralit® 2028 160-300 epoxy UV
secondary heat cure
Dry surface after UV-curing
autoclavable
excellent chemical resistance
scratch resistant coating
Vitralit® 2009 F 100-200 epoxy UV
secondary heat cure
fluorescing
flexible
autoclavable
high chemical resistance
low ion content
Vitralit® 4451 MV F 2,000-3,000 (LVT, 25 °C, Sp. 4/30 rpm) acrylate UV, VIS soft and elastic
dry surface after curing
protective coating
fast curing
fluorescing blue
Vitralit® 5140 250-500 acrylate UV
VIS
Flexible,
well suited for bonding plastics with low UV translucence and permeable to visible light,
biocompatible: certified to USP Class VI standards
Vitralit® 6103 3,500-5,000 acrylate UV
secondary heat cure
Very high adhesion to metals and sintered materials
transparent
Vitralit® 6104 3,000-8,000 acrylate UV
secondary heat cure
Very high adhesion to metals and sintered materials
Vitralit® 6104 VT 8,000-17,000 (Rheometer, 25°C, 10s^-1) acrylate UV
secondary heat cure
Very high adhesion to metals and sintered materials
ideal for bonding large components on circuit boards (corner bonding)
Vitralit® 6105 3,500-6,000 acrylate UV
secondary heat cure
very high adhesion to metals and sintered materials
Vitralit® 6125 4,000-6,000 (LVT 25°C, Sp. 4/30 rpm) acrylate UV
secondary heat cure
excellent adhesion to stone, glass, metals and thermoplastics
medium viscosity
Vitralit® 6128 800-1,200 acrylate UV
secondary heat cure
very high adhesion to stone, glass, metals and thermoplastics
high temperature resistance
Vitralit® 6128 VT 3,000-6,000 (Rheometer, 25°C, 10s^-1) acrylate UV
secondary heat cure
contains chemical activator
high temperature resistance
high viscosity
excellent adhesion to stone, glass, metals and thermoplastics
Vitralit® 9179 200-400 acrylate UV Fast curing
very well suited for automated production lines
yellow color
dry surface
Vitralit® 9180 700-1,200 acrylate UV Dry surface
fast curing of thick layers
yellow color
Vitralit® 9181 4,000-7,000 acrylate UV Yellow color
dry surface
fast curing of thick layers
Vitralit® UD 5180 4,000-6,000 epoxy UV
secondary heat cure
Perfect solution for bonding flexible circuit paths
resistant to reflow processes
grey color
Vitralit® VBB-1 1,000-1,500 acrylate UV
VIS
Elastic
high peel strength
optically clear
very flexible
suitable for potting
Vitralit® UD 8055 5,000-8,000 (Rheometer, 25°C, 10s^-1) acrylate UV
VIS
moisture cure
High Tg
Fast curing
Compatible with flux
Low ion content
Vitralit® UD 8056 3,000-6,000 (Rheometer, 25°C, 10s^-1) acrylate UV / VIS High Tg, fast curing
Compatible with flux
Low ion content
Passed UL94 HB test

*UV = 320 - 390 nm          VIS = 405 nm