Drykeeper

 

Part 1            Is Drykeeper Suitable for my Application?

 

Condensation is a major cause of long-term reliability issues in sealed enclosures. Drykeeper is very effective for stopping condensation when it’s used in the right conditions—but it isn’t a universal fix for every condensation problem. It is not suitable for rooms or buildings

Drykeeper is designed to prevent condensation, not to dry wet equipment or remove liquid water. Below are the main situations where Drykeeper is not the right solution 

This guide helps engineers determine whether Drykeeper is suitable for their application and compares it with alternative condensation-control methods.

Decision Points

 

Drykeeper is suitable if all the following are true:

  • The enclosure is sealed (no ventilation or air exchange)
  • There is no liquid water ingress
  • Doors are opened infrequently
  • The goal is condensation prevention, not drying
  • Relative humidity requirements are above ~40% RH
  • Long-term, maintenance-free operation is preferred
  • Power is unavailable, undesirable, or impractical

If any of the above conditions are not met, an alternative method may be more appropriate.

 

Drykeeper is unsuitable if any the following are true:

  • The enclosure is vented or leaky
  • Liquid water has or can enter
  • Doors are opened frequently in humid air
  • Cabinets serviced daily or shift-by-shift
  • The internal volume is very large
  • Ultra-low humidity is required (<40% RH)
  • Extreme or rapid thermal cycling dominates
Typical Suitable Applications  
  • Outdoor CCTV and monitoring equipment
  • Traffic signs and roadside electronics
  • Sealed sensor housings and junction boxes
  • Optical, laser, and camera enclosures
  • Remote or battery-powered installations
  • Electrical control and distribution panels
  • Unpowered applications
  • Emergency roadside/trackside telephones
  • Remote monitoring systems
  • Marine electronics
  • Energy storage and power conversion systems (PCS)
  • EV charging stations
  • Wind turbine control panels
  • Railway signalling
  • PV connection boxes
  • Optical housings
  • Laboratory equipment
  • storage cabinets for sensitive components

Part 2 — Comparison Table

Condensation Control Technologies Compared

Feature / Requirement Drykeeper Silica Gel / Desiccant Panel Heater Powered Dehumidifier
Power required  No  No  Yes  Yes
Prevents condensation  Yes  Limited  Indirect  Yes
Actively removes moisture  No  Limited  No  Yes
Handles liquid water  No  No  No  Limited
Works in sealed enclosures  Ideal  Initially  Depends  Yes
Works in vented enclosures  No  No  Sometimes  Depends
Maintenance required  None  Regular replacement  Inspection  Depends
Risk of over-drying  No  Yes  No  Possible
Typical RH achieved  ~50–60%  Variable  Variable  Adjustable
Long-term stability  High  Low  Medium  Medium
Installation complexity  Very low  Very low  Medium  Medium
Operating cost  None  Consumable  Energy  Energy + service
Best use case in sealed enclosures Condensation prevention Short-term drying Frost avoidance Large or vented enclosures

How to Interpret the Table

Drykeeper stabilises humidity to prevent condensation without power or servicing.

  • Desiccants absorb moisture but saturate and require replacement or regeneration.
  • Heaters reduce relative humidity indirectly by raising temperature, but do not remove moisture.
  • Powered dehumidifiers actively remove moisture but require energy, space, and maintenance.

Outcome: No single method is universal — selection depends on enclosure design, access, power availability, and humidity targets.

Summary

Drykeeper is best suited to sealed enclosures where condensation prevention, reliability, and maintenance-free operation are priorities. It is suitable for remote or hard to reach applications of those with low or no power available
It is not intended to replace active drying systems where ventilation, water ingress, or ultra-low humidity is required.