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Encapsulation of Plastic Components

In many applications plastic components are manufactured and then encapsulated. A range of sealing compounds, encapsulants and potting compounds are available for different applications:

Flexible acrylates have a stress-equalizing effect and protect plastic components from impact and vibration. Rigid potting compounds, on the other hand, can reinforce and also carry heavy loads.

UV- and LED-curing acrylic-based adhesives are especially suitable here due to their short curing times, which speed up production and therefore reduce production costs. A prerequisite is that the plastics are transparent and not impermeable to UV light. For joints with undercuts or shaded zones, dual-curing adhesive systems are used. These are thermally cured following initial UV curing. Non-transparent substrates can be bonded with epoxy adhesives that cure thermally or at room temperature.

Dual-curing adhesives are also employed for particularly thick adhesive layers. Alternatively, thick layers can be cured with longer-wavelength light (about 405 nm LEDs), with which layers of several millimetres’ thickness can be cured.

The table below lists a selection of adhesives from Panacol that are suitable for encapsulation. Further products and custom solutions are available on request.



Adhesive/encapsulant Suitable for bonding these substrates: Viscosity [mPas] Base Curing*
Vitralit® 1720 encapsulation of FR4, ABS, and other plastics 4,000-4,750 epoxy UV curing
Vitralit® 1722 encapsulation of FR4, ABS, and other plastics 5,000-8,000 epoxy UV curing
Vitralit® 4730 PMMA, PC, Hard PVC, PET, ABS
encapsulation of other plastics
Low viscosity acrylate UV curing
VIS curing
Vitralit® 4731 PMMA, PC, hard PVC, PET, ABS
encapsulation of other plastic substrates
900-1,500 acrylate UV curing
VIS curing
Vitralit® 4735 HC encapsulation of PMMA, PC, hard PVC, PET, ABS
other plastics
700-1,000 acrylate UV curing
VIS curing
thermal curing
Vitralit® 5140 encapsulation of PC, PMMA, PET, ABS, Hard PVC
bonding plastic to other substrates
250-500 acrylate UV curing
VIS curing
Vitralit® 7283 bonding plastic to glass 70-130 acrylate UV curing
VIS curing
Vitralit® 7311 PC, PMMA, PVC and glass bonding 40-70 acrylate UV curing
VIS curing
Vitralit® 7313 PC, PVC, ABS and glass bonding 40-70 acrylate UV curing
VIS curing
Vitralit® 7989 encapsulation of PC, hard PVC, ABS, SAN 3,000-5,000 acrylate UV curing
Vitralit® 9179 encapsulation of PC and other plastic components 200-400 acrylate UV curing
Vitralit® 9180 encapsulation of PC and other plastic components 700-1,200 acrylate UV curing
Vitralit® 9181 encapsulation of PC and other plastic components 4,000-7,000 acrylate UV curing
Vitralit® UD 5134 encapsulation of PMMA, PC, hard PVC, PET, ABS, SAN, FR4, PBT, bonding plastic to metal 15,000-25,000 acrylate UV curing
VIS curing
thermal curing
Vitralit® UV 2113 encapsulation of PMMA, PC, hard PVC, PET, ABS, SAN, FR4, PBT, bonding plastic to metal  19,000-32,000 hybrid UV curing
VIS curing
Vitralit® UV 2150 encapsulation of PMMA, PC, hard PVC, PET, ABS, SAN, FR4, bonding plastic to metal 140-500 acrylate UV curing
VIS curing
Vitralit® VBB 1 encapsulation of PMMA, PC, hard PVC, PET, ABS, SAN, FR4, PBT, bonding plastic to metal  1,000-1,500 acrylate UV curing
VIS curing
Vitralit® VBB-2N LV encapsulation of PMMA, PC, hard PVC, PET, ABS, SAN, FR4, PBT, bonding plastic to metal  40-65 acrylate UV curing
VIS curing
Structalit® 5800 encapsulation of FR4 and many thermoplastics, if necessary with surface pretreating 7,000-15,000 2 component epoxy thermal curing
room temperature
Structalit® 5810 encapsulation of FR4 and many thermoplastics, if necessary with surface pretreating  2,000-3,000 2 component epoxy thermal curing
room temperature

*UV = 320 - 390 nm          VIS = 405 nm