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Preventing costly abrasion and corrosion damage to food manufacturing transport screws with ARC Industrial Coatings

Challenge

Chesterton and ARC Coatings

Severe abrasion and corrosion to food manufacturing transport screws was resulting in scraping and replacing the screws every 2-3 months at a cost of 6,000 USD per screw, not including labour and lost production time.  The screws transport MgCl, NaCL and KCl salts which are highly corrosive and abrasive, as the plant maintains over 60 of these screws, it was resulting in an annual expense of over 2.1M USD.

Products featured in this case study:

​​​​​​​​​​ARC MX FG – Abrasion Resistant Coating for Fine Particle Wear

Solution

Preparation

  • Surfaces decontaminated to remove residual salts.
  • Grit blasted to SP10 cleanliness with 3+ mil angular profile.

Application

  • A Chesterton specialist trowel applied ARC MX FG to press side of flights as trial at 2-3mm thickness.

Replacement screw

Applying ARC MX FG

ARC MX FG coated screw

​​​​​​​​​​ARC MX FG is a trowel applied 100% solids, zero VOC, ceramic-reinforced epoxy coating designed for protecting surfaces against dry and wet slurry abrasive flow. This two-part system complies to 21 CFR 175.300 and is suited for direct food contact.​

Use ARC MX FG to:

  • Protect metal surfaces from extreme sliding-wear and abrasion caused by fine particles
  • Restore worn equipment to near original condition
  • Provide a longer lasting alternative to rubber linings and ceramic wear tiles
  • Resist a broad pH spectrum
  • Easily apply by trowel

Results

Our client reported the initial trial screw was in service for >18 months (6X uncoated life) with minimal wear noted on coated surfaces, resulting in a 30K USD saving on this screw to date.  Our client has since decided to coat both the press and following faces of flights as well as the drum on all 60 plant screws to extend the life and reduce maintenance costs.

Previous method (6k USD x 6/year x 60 screws) = 2,160,000 USD
ARC MX FG method (6K USD x .5/year x 60 screws) = 180,000 USD

Anticipated savings when fully implemented = 1,980,000 USD

About Us

Chesterton® ARC coatings are specifically formulated and engineered to be used in a wide range of harsh environments and conditions.

With outstanding adhesion, superior mechanical strength, excellent permeation, chemical and wear resistance, 100% solids and solvent-free, the available range of Chesterton ARC coating will help you protect your investment.

® Registered trademark owned by A.W. Chesterton Company

Issued 05/2022

Technical data reflects results of laboratory tests and is intended to indicate general characteristics only. A.W. Chesterton Company disclaims all warranties expressed or implied, including warranties of merchantability and fitness for a particular purpose. Liability, if any, is limited to product replacement only. Any images contained herein are for general illustrative or aesthetic purposes only and are not intended to convey any instructional, safety, handling, or usage information or advice respecting any product or equipment. Please refer to relevant Safety Data Sheets, Product Data Sheets, and/or Product Labels for safe use, storage, handling, and disposal of products, or consult with your local Chesterton sales representative.

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