Do plastic equipment boxes need to be waterproof?
Yes, plastic equipment boxes often need to be waterproof, especially when they are used to store or transport sensitive or valuable items. Whether waterproofing is essential depends on the application environment and the nature of the contents. Here's a breakdown:
Why Waterproofing Matters for Plastic Equipment Boxes
Protection from Moisture and Water Ingress
Ideal for outdoor use, such as in camping, field work, military, marine, or emergency rescue operations.
Prevents water from damaging electronics, tools, cameras, medical devices, and other delicate equipment.
Enhanced Durability and Longevity
Keeps internal components dry, reducing the risk of corrosion, mold, or mildew.
Useful in wet, rainy, or humid conditions, or in places prone to splashing, like on boats or construction sites.
Compliance with Industry Standards
Many industries require IP-rated waterproof or water-resistant cases, especially in aerospace, medical, or defense sectors.
IP67 or IP68 rated plastic cases ensure protection from dust and submersion in water.
When Waterproofing May Not Be Necessary
If the equipment is used strictly indoors or in dry, climate-controlled environments.
When contents are non-sensitive (e.g., basic tools or non-electronic items).
For budget-friendly options where full waterproofing adds unnecessary cost.
Here’s a comparison guide between waterproof and water-resistant plastic equipment boxes, along with a quick explanation of IP ratings to help you make an informed decision:
Waterproof vs. Water-Resistant Equipment Boxes
Feature | Waterproof Box | Water-Resistant Box |
---|---|---|
Protection Level | Complete seal against water, even during submersion. | Protects against light splashes or brief rain. |
Typical IP Rating | IP67, IP68 | IP44, IP54 |
Best For | Marine use, emergency services, outdoor expeditions, and sensitive electronics. | Indoor storage, dry transport, basic field work. |
Seal Type | Gasket or O-ring seals, tight locking latches. | Partial seals, looser closures. |
Durability | More rugged; suitable for rough handling. | Lightweight; better for casual use. |
Cost | Generally higher due to enhanced protection. | Lower; more budget-friendly. |
Understanding IP Ratings (Ingress Protection)
The IP rating is a standardized way to measure how well a case protects against dust and water. It’s shown as IPXY, where:
X = Solid particle protection (0–6; 6 = dust-tight)
Y = Liquid ingress protection (0–9; higher = better water resistance)
Common IP Ratings Explained:
IP44: Protected against solid objects over 1mm and water splashes.
IP54: Dust-protected and protected against water spray.
IP65: Dust-tight and protected against water jets.
IP67: Dust-tight and can withstand immersion in water up to 1 meter for 30 minutes.
IP68: Dust-tight and can withstand continuous submersion in water beyond 1 meter (manufacturer-defined depth/duration).
Final Recommendation
Go for Waterproof (IP67 or IP68) if:
You're storing electronics, optics, or sensitive instruments.
You’ll be using the box in outdoor, marine, or wet environments.
You need maximum protection and reliability.
Water-Resistant (IP44 or IP54) is enough if:
You're storing tools or non-sensitive items.
The box will be used indoors or in mild outdoor conditions.
Weight and cost are more important than extreme protection.
Conclusion
Waterproof plastic equipment boxes are essential when protection from moisture is critical. For outdoor, marine, or rugged industrial applications, they provide peace of mind and preserve equipment integrity. When choosing a box, consider the IP rating, seal design, and intended use to determine if waterproofing is necessary.
KASSICO, a leading custom case factory in Ningbo, China, since 2001, specializes in manufacturing custom plastic cases, aluminum storage boxes, aluminum toolboxes, coolers for daily organization, outdoors, camping, overlanding, military, and medical applications. We supply full custom service, including developing OEM & ODM projects. Our company owns a 15000 m2 factory area and more than 200 sets of advanced manufacturing equipment. A perfect and rigorous QC system is implemented in every process from material purchasing to finished product packaging.