Potting Boxes for Electronics

Polycase Potting boxes are commonly used for housing PCBs or other electronic assemblies. Potting shells are molded from ABS plastic or diecast aluminum and are available in a variety of sizes and styles. Potting boxes are a low cost, lightweight solution for your electronics project. Glue-on covers are available as an optional accessory on select series.

Need to get up to speed on potting boxes and how to choose one? See our two-minute primer on potting boxes below.

What Is a Potting Box for Electronics?

Unlike other types of enclosures, potting boxes (or a potting shell) are designed to be filled with potting compounds, a protective gel substance that cures to become solid. Once solid, this compound keeps electronic components safe from water, impacts, dirt, and other common environmental hazards.

Potting compounds can be made from several different substances, including epoxy and silicone, each having unique and useful protective qualities. Depending on the compound used, it can function as an electrical insulator, help manage heat inside an enclosure or even offer resistance to chemicals.

It’s common to see potting boxes used as parts within larger equipment, and they’re typically smaller than other types of electronic enclosures. However, they’re still perfectly capable of standing on their own, and many include options like mounting flanges for versatile performance in multiple applications.

When choosing a potting box for your application, one of the biggest challenges can be specifying a model that fits your needs. The best potting boxes are made from durable material that stands up to wear and tear, and it’s also important to find models with the right features. Finally, of course, you’ll want to look for potting box models that fit your budget.

Tough and Economical Potting Boxes from Polycase

Polycase offers dozens of models of both metal and plastic potting boxes. Our ABS potting boxes are among our most popular options. Made from sturdy and flame-retardant black ABS plastic, these enclosures offer an excellent balance of price and performance. You’ll find features like mounting flanges, optional PCB mounting bosses, and options for glue-on or snap-on covers. For more demanding applications, we recommend our aluminum potting boxes.

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  1. AL-78P Diecast Aluminum Enclosure
    As low as $20.29 per unit
    Internal: 7.0" x 7.0" x 2.4"
    180 x 180 x 62 mm
    External: 7.5" x 7.5" x 2.6"
    191 x 191 x 67 mm
    Material: Aluminum
  2. AL-48P Diecast Aluminum Enclosure
    As low as $18.32 per unit
    Internal: 6.9" x 4.2" x 3.0"
    176 x 108 x 78 mm
    External: 7.3" x 4.7" x 3.2"
    188 x 119 x 82 mm
    Material: Aluminum
  3. AL-47P Diecast Aluminum Enclosure
    As low as $15.49 per unit
    Internal: 7.0" x 4.3" x 2.0"
    178 x 109 x 52 mm
    External: 7.3" x 4.7" x 2.2"
    188 x 119 x 56 mm
    Material: Aluminum
  4. AL-77P Diecast Aluminum Enclosure
    As low as $13.15 per unit
    Internal: 7.0" x 4.3" x 1.3"
    179 x 111 x 34 mm
    External: 7.3" x 4.7" x 1.5"
    188 x 119 x 38 mm
    Material: Aluminum
  5. BF-060210 Potting Box Enclosure
    As low as $1.35 per unit
    Internal: 6.0" x 2.0" x 0.9"
    155 x 53 x 25 mm
    External: 6.3" x 2.3" x 1.0"
    160 x 58 x 25 mm
    Material: ABS
  6. AL-76P Diecast Aluminum Enclosure
    As low as $11.30 per unit
    Internal: 5.6" x 2.8" x 1.8"
    142 x 73 x 47 mm
    External: 6.0" x 3.2" x 2.0"
    152 x 83 x 51 mm
    Material: Aluminum
  7. AL-75P Diecast Aluminum Enclosure
    As low as $14.48 per unit
    Internal: 4.2" x 4.2" x 3.5"
    108 x 108 x 91 mm
    External: 4.7" x 4.7" x 3.7"
    121 x 121 x 95 mm
    Material: Aluminum
  8. AL-74P Diecast Aluminum Enclosure
    As low as $11.58 per unit
    Internal: 4.3" x 4.3" x 2.1"
    110 x 110 x 55 mm
    External: 4.7" x 4.7" x 2.3"
    121 x 121 x 59 mm
    Material: Aluminum
  9. AL-72P Diecast Aluminum Enclosure
    As low as $8.65 per unit
    Internal: 4.3" x 2.7" x 2.1"
    111 x 70 x 55 mm
    External: 4.7" x 3.1" x 2.3"
    121 x 80 x 59 mm
    Material: Aluminum
  10. AL-34P Diecast Aluminum Enclosure
    As low as $9.10 per unit
    Internal: 4.2" x 3.2" x 2.0"
    109 x 84 x 52 mm
    External: 4.6" x 3.6" x 2.2"
    119 x 93 x 56 mm
    Material: Aluminum
  11. AL-73P Diecast Aluminum Enclosure
    As low as $7.64 per unit
    Internal: 4.3" x 3.3" x 1.1"
    110 x 85 x 30 mm
    External: 4.6" x 3.6" x 1.3"
    119 x 93 x 34 mm
    Material: Aluminum
  12. Timer Module

    CNC Machining & Graphics

    Save time and money with Polycase customization services

    Learn More
  13. P-3420TX Potting Box Enclosure
    As low as $1.63 per unit
    Internal: 4.1" x 2.8" x 1.9"
    104 x 72 x 48 mm
    External: 4.3" x 3.1" x 2.0"
    111 x 80 x 51 mm
    Material: ABS
  14. TF-3420TX Potting Box Enclosure
    As low as $1.63 per unit
    Internal: 4.1" x 2.8" x 1.9"
    104 x 72 x 48 mm
    External: 4.3" x 3.1" x 2.0"
    111 x 80 x 51 mm
    Material: ABS
  15. AL-79P Diecast Aluminum Enclosure
    As low as $7.74 per unit
    Internal: 4.0" x 2.0" x 1.9"
    103 x 52 x 50 mm
    External: 4.3" x 2.3" x 2.1"
    111 x 60 x 54 mm
    Material: Aluminum
  16. AL-24P Diecast Aluminum Enclosure
    As low as $5.62 per unit
    Internal: 4.1" x 2.1" x 1.0"
    104 x 54 x 27 mm
    External: 4.3" x 2.3" x 1.2"
    111 x 60 x 31 mm
    Material: Aluminum
  17. AL-71P Diecast Aluminum Enclosure
    As low as $6.64 per unit
    Internal: 3.9" x 2.8" x 1.5"
    101 x 73 x 40 mm
    External: 4.3" x 3.2" x 1.7"
    110 x 83 x 44 mm
    Material: Aluminum
  18. SN-29 Snap Together Enclosure
    As low as $5.10 per unit
    Internal: 3.8" x 2.5" x 1.8"
    98 x 64 x 46 mm
    External: 4.1" x 2.7" x 1.9"
    105 x 70 x 51 mm
    Material: ABS
  19. SN-29 White Snap Together Enclosure
    As low as $5.10 per unit
    Internal: 3.8" x 2.5" x 1.8"
    98 x 64 x 46 mm
    External: 4.1" x 2.7" x 1.9"
    105 x 70 x 51 mm
    Material: ABS
  20. SN-28 Snap Together Enclosure
    As low as $4.59 per unit
    Internal: 3.8" x 2.5" x 1.2"
    98 x 64 x 31 mm
    External: 4.1" x 2.7" x 1.4"
    105 x 70 x 36 mm
    Material: ABS
  21. SN-28 White Snap Together Enclosure
    As low as $4.59 per unit
    Internal: 3.8" x 2.5" x 1.2"
    98 x 64 x 31 mm
    External: 4.1" x 2.7" x 1.4"
    105 x 70 x 36 mm
    Material: ABS
  22. SN-27 Snap Together Enclosure
    As low as $4.08 per unit
    Internal: 3.8" x 2.5" x 0.6"
    98 x 64 x 16 mm
    External: 4.1" x 2.7" x 0.8"
    105 x 70 x 21 mm
    Material: ABS
  23. SN-27 White Snap Together Enclosure
    As low as $4.08 per unit
    Internal: 3.8" x 2.5" x 0.6"
    98 x 64 x 16 mm
    External: 4.1" x 2.7" x 0.8"
    105 x 70 x 21 mm
    Material: ABS
  24. Timer Module

    CNC Machining & Graphics

    Save time and money with Polycase customization services

    Learn More

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