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Desiccant Masterbatches

A simple and economical way to eliminate moisture problems in polymer processing.

Simple and economical moisture elimination.

Desiccants (moisture scavengers), are materials that will attract and chemically bind moisture and can offer a simple and economical way to eliminate moisture problems in plastics processing that can otherwise cause unattractive surface defects such as lensing, voiding, and splash marks in the finished product.

Desiccant masterbatches can reduce the need for pre-drying of materials, allowing processors to use recyclate with high moisture content and extend the processing window for moisture sensitive polymers.

How it works.

Wells desiccant masterbatches contain highly concentrated levels of a high purity, controlled particle size active ingredient. This will absorb and chemically lock in any moisture present in the system and prevent it from being released as steam during processing.

Typically, 1wt% addition of a desiccant masterbatch will absorb in excess of 3000ppm moisture.

Wells desiccant masterbatches have proven to be highly effective in reducing fish eyes and voiding in recycled films such as bin bags and eliminating surface defects in high gloss ABS sheets containing recycled material.

Due to the carefully controlled particle size of the active ingredient, Wells desiccant masterbatches are suitable for use in thin films.

Applications:  Blown film, Sheet extrusion, Profile Extrusion, Blow Moulding, Injection Moulding

Polymer Carriers Available: PE

Talk to us about desiccant masterbatches.

Find out more about our Desiccant Masterbatches and how they can help enhance your product.


Antimicrobial Masterbatches and powders for polymer applications


Biodegradable Additive Masterbatches for polymer films


Here you can access our policies, regulatory documents and certificates

Wells Plastics Founded

The business was founded in 1984 by Danny Wells servicing the UK with specialist additive masterbatches for the UK film and fibre marketplace, with a particular expertise in UV masterbatches.

New Management

In 1997 Danny left the business, under new management the product range began to grow.

Bactiglas™ Launches

In 1999 the business entered antimicrobial masterbatch marketplace which would become the Bactiglas™ range of products.

Reverte™ Arrives

In 2003 Wells developed a range of oxo-biodegradable masterbatches which would become the Reverte™ range of products in 2005.


In 2006 the business began its first site expansion taking on more warehousing and office space on the same industrial estate, including an expansion of the lab facility to support the growing business.

Growing Team

In 2009 the

Technical Department expanded further

Management Buy Out

In 2011 KCP supported a management buy-out and provided investment for growth

International Growth

In 2012 Wells increased dramatically its international foot print through an expanded distribution network.

Founding Members

In 2015 Wells are the founding Member of the oxo-biodegradable plastics federation (now known as the Society of Biodegradable Polymers)

Capacity Increases

In 2018 the business underwent a significant capacity uplift with a 40% expansion and extension of the current production facility

ISO 14001

In 2019 the business achieved ISO 14001


Ecovadis Silver

In 2020 Wells achieve a Silver EcoVadis rating

A Busy Year

In 2022 Wells created the Innovation Centre, a raw material warehouse, gained a Gold Ecovadis rating and completed a Management Buy Out

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Our products

A wide range of masterbatches for film and sheet applications

Marketed under the Bactiglas™ trademark masterbatches and powders food packing through to medical devices.

A wide range of masterbatches for film, sheet and injection moulding applications

Wells offer a bespoke additive masterbatch and compounding service

Exothermic and endothermic masterbatches and powders for extrusion and injection moulding processes.

A range of biopolymer and biobased materials for extrusion and injection moulding applications.

Wells additive masterbatch and compound contract manufacturing services

Moisture absorbing masterbatches for all extrusion and injection moulding processes

A wide range of bespoke flame retardant masterbatch and compound solutions.

Masterbatches to enhance point of sale items with fragrances or eliminate unwanted mal-odours from recycled feedstocks

A range of masterbatches sold under the Reverte™ trademark for providing a biodegradable property to polyolefins

Masterbatches to improve the quality and aesthetics of extruded polymer, reducing waste and energy consumption.

A range of compounds to aid in the purging, cleaning and shut down procedures of extrusion equipment.

Masterbatches and compounds which provide an enhanced and controlled slip property to extruded and injection moulded articles.

Masterbatches to enhance stability polymers during processing, in use and during recycling suitable for a wide range of applications and processes

Masterbatches to enhance the UV stability of polymers during suitable for a wide range of applications and processes