A waterproof case keeps water out completely under defined conditions, while a water resistant case only slows water penetration and offers limited protection. The difference is not a matter of degree — it is a matter of certification. Waterproof cases carry an IP rating that defines exactly how much water exposure they can handle. The sections below break down what those ratings mean, where each case type falls short, and how to choose the right protection for your gear.
What do IP ratings actually mean for cases?
IP stands for Ingress Protection, and it is a standardized rating system that tells you exactly what a case can withstand. The two digits after “IP” each mean something specific: the first digit rates protection against solid particles like dust, and the second rates protection against water. A case rated IP67, for example, is fully dustproof and can be submerged in water up to one meter deep for 30 minutes.
The rating is not a marketing claim — it is the result of standardized testing under controlled conditions. This matters because it gives you a reliable benchmark to compare cases against each other. When a case lists no IP rating at all, you have no verified baseline for its protection level, regardless of how the product is described.
- First digit (0-6): Solid particle protection, from no protection (0) to fully dustproof (6)
- Second digit (0-9): Water protection, from no protection (0) to high-pressure jet resistance (9)
- IP67: Fully dustproof, submersible to 1 meter for 30 minutes
- IP68: Fully dustproof, submersible beyond 1 meter at a manufacturer-specified depth
For protective cases used in field conditions, IP67 is the practical standard. It covers rain, splashes, brief submersion, and dusty environments — the scenarios most professionals actually encounter.
How much water exposure can a water resistant case handle?
A water resistant case can handle light moisture — splashes, brief rain exposure, or surface condensation — but it is not designed to withstand sustained water contact or submersion. There is no standardized threshold for “water resistant,” which means the term can describe anything from a basic splash guard to a case that approaches IP-rated performance without meeting the full standard.
In practical terms, a water resistant case is adequate when your risk is low and predictable. If you are moving gear between a car and a studio in light rain, water resistance may be enough. If you are working outdoors in unpredictable weather, near water, or in dusty environments, water resistance alone leaves your equipment exposed.
The core limitation is the seal. Water resistant cases typically use basic gaskets or tight-fitting lids that reduce moisture entry but do not eliminate it. Over time, or under pressure from rain or splashing, water finds its way in. For sensitive electronics, cameras, or precision instruments, that margin of risk is often too high.
What makes a case truly waterproof?
A truly waterproof case achieves a verified, continuous seal between the lid and the body that prevents water from entering under defined test conditions. This requires three things working together: a high-quality gasket that compresses evenly when the case is closed, a rigid shell that does not flex under pressure, and a pressure equalization valve that prevents the seal from being compromised by air pressure changes.
The pressure equalization valve is often overlooked but is critical. When a case moves between environments with different temperatures or altitudes — such as in cargo holds or during outdoor travel — internal air pressure changes. Without a valve, that pressure difference can force the lid open slightly or stress the gasket, breaking the seal. A properly designed waterproof case vents pressure without letting water in.
Shell material also plays a role. A case built from impact-resistant polypropylene holds its shape under stress, which keeps the gasket compressed and the seal intact. A shell that warps or flexes under load will eventually allow water ingress even if the gasket itself is in good condition.
Which type of case do you need for your gear?
If your gear is valuable, sensitive to moisture, or used in unpredictable outdoor conditions, you need a waterproof case with a verified IP rating. If your gear is used in controlled environments with only occasional exposure to light moisture, a water resistant case may be sufficient. The decision comes down to the cost of your equipment versus the cost of upgrading to certified protection.
Consider the following when choosing:
- Drones and cameras: Electronics are highly vulnerable to moisture damage. IP67-rated waterproof cases are the practical standard for field use.
- Audio equipment: Microphones, mixers, and recorders used outdoors benefit from full waterproof protection, especially in coastal or humid environments.
- Medical and precision instruments: These require consistent, certified protection. Water resistance is not sufficient when equipment failure carries serious consequences.
- Tools and hardware: Depending on the environment, water resistance may be adequate for tools that are not moisture-sensitive, but dustproof construction is often equally important.
- Travel and transit: Luggage handling, rain exposure, and cargo environments all argue for waterproof cases over water resistant ones.
A useful rule: if replacing your gear would cost significantly more than the price difference between a water resistant and a waterproof case, the waterproof case is the economical choice.
Can a waterproof case lose its seal over time?
Yes. A waterproof case can lose its seal over time if the gasket degrades, the shell is damaged, or the case is not maintained properly. The IP rating reflects the case’s performance when new and undamaged — it is not a permanent guarantee. Regular inspection and basic maintenance are necessary to keep the seal performing as intended.
The gasket is the most vulnerable component. Rubber and silicone gaskets can dry out, crack, or compress permanently after years of use. Exposure to UV light, extreme temperatures, or chemical contaminants accelerates this process. Inspecting the gasket periodically and cleaning it to remove grit or debris that could compromise the seal is straightforward maintenance that extends the case’s protective life significantly.
Physical damage to the shell is the other main risk. A hard impact that dents or warps the lid or body can misalign the gasket channel, creating a gap that water can enter. If a case has taken a serious impact, it is worth testing the seal before trusting it with sensitive equipment again.
Storing a case with the latches open when not in use reduces long-term gasket compression and helps the seal maintain its shape. Small habits like this extend the effective lifespan of a waterproof case considerably.
How HUSK Cases protects your gear
HUSK Cases builds hard cases specifically for professionals and serious users who need reliable protection without overpaying for it. Every HUSK case is IP67-certified, meaning it has been tested and verified against both dust ingress and water submersion to one meter for 30 minutes. The shell is constructed from NK-7 high-impact polypropylene, which holds its shape under stress and keeps the gasket seal intact. A built-in pressure equalization valve manages air pressure changes during transit without compromising the waterproof seal.
- IP67-certified waterproof and dustproof construction verified through standardized testing
- NK-7 polypropylene shell that resists impacts and maintains structural integrity
- Pressure equalization valve for reliable sealing across changing temperatures and altitudes
- Operating range of -40°C to +80°C for use in extreme environments
- 5-year warranty on all cases
- 40+ sizes to match the specific dimensions of your equipment
- Custom foam interior options that secure gear precisely and prevent movement during transport
If you are choosing between water resistant and genuinely waterproof protection for equipment that matters, HUSK Cases offers the certified performance you need at a price that makes the upgrade straightforward. Browse the full range at huskcases.com to find the right case for your gear.