Stop Moisture Ruining Your Plastic Production

Reliable Dehumidification for Injection Moulding & Plastics Manufacturing

Moisture in the air can cause havoc in the manufacture of plastics.  Reduce rejects, prevent condensation on moulds and keep granules dry with engineered dehumidification systems for plastics plants.

 
Badly formed plastic bottles due to moisture issues during manufacturing

HOW DOES MOISTURE AFFECT PLASTIC?

Moisture in the air condenses on cold moulds and is absorbed by plastic granules. That leads to defects, quality issues and unplanned downtime.

  • Condensation on moulds creates surface defects and shock cracks

  • Granules absorb moisture, causing bubbles and voids in finished parts

  • Stored hygroscopic compounds degrade and change properties

  • Loss of clarity and poor crystalline structure in clear plastics

  • Clarity and crystalline structure of end product is of poor quality.

Get tailored advice for your plant

Request a Plastics Moisture Assessment

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We respond to quotes within 24 hours.

 

Dehumidifiers Designed for Plastics Manufacturing

Mould Dehumidification System

Injection Moulding, thermo forming and polymer storage without condensation is possible!

How it works
Keeps the air around the moulds dry at a controlled temperature of 5°C or lower, eliminating condensation on cold surfaces.”

What it does for your line

  • Eliminates water droplets on moulds

  • Prevents corrosion and mould growth

  • Stabilises mould temperature for consistent production

Impact on production

  • Shorter cycle times

  • Fewer rejects and quality claims

  • Less unplanned maintenance on moulds and equipment

desiccant dehumidifier for plastics manufacturing
 
 

Improved Raw Material Storage

  • Keeps hygroscopic granules dry in silos and bins

  • Stops moisture uptake before processing

  • Protects raw material quality between deliveries

Improved Plastic Products

  • Eliminates shock cracks and moisture defects

  • Improves clarity and crystalline structure of clear parts

  • Enhances surface finish by keeping mould surfaces dry

 

No Effects from Weather or Changing Seasons

  • System performance unaffected by ambient temperature swings

  • Maintains stable air conditions year-round

  • Ensures consistent product quality in summer and winter

Improved Mould Storage

  • Keeps stored moulds below 50% RH to prevent corrosion

  • Reduces need for greasing and cleaning before use

  • Stops condensation in pneumatic systems and sticking granules

 

Ready to fix moisture problems in your plant?

Talk to an engineer
 
Dehumidifiers in plastic manufacturing

Plastics Manufacturing Brochure

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DEHUMIDIFIER HIRE

Not ready to invest? Test the results first.

Rent a desiccant dehumidifier during peak humidity months and measure the impact on cycle times, reject rates and downtime.

  • Ideal for trials and pilot lines

  • Seasonal climate fluctuation issues

  • Fast deployment to existing plants

  • Option to apply rental costs towards purchase

Visit our Dehumidifier Hire page to learn more - we have seen many industries benefit greatly from the temporary use of dehumidifiers.

Enquire about rental units
 

FAQ

Here are some of the most common questions we receive from plastics manufacturers looking to improve quality, efficiency, and environmental control in their production space.

  • Moisture in hygroscopic resins can cause defects such as silver streaking, splay, and warping. Controlling humidity ensures resins stay dry before processing, improving surface quality and dimensional accuracy.

  • Yes. Our engineered solutions can be integrated into your current HVAC+R system or installed as standalone desiccant units, depending on your facility layout and production requirements.

  • It depends on your process. Many facilities only require targeted humidity control at the moulding machines or drying area, while high‑precision manufacturing may need a dedicated, climate‑controlled room. We design both.

  • Yes. Lower humidity and low dew point conditions help resin dryers work more efficiently, often reducing drying times and energy consumption.

  • We assess several factors including room size, production heat load, airflow patterns, number of people working in the area, moisture sources, and your required dew point. This ensures we specify a system that maintains stable conditions and delivers consistent performance.