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Fast Curing Abrasion Protection

OVERVIEW:    Chemcote’s specialist team mobilised to site to deliver a multiple layer protective coating system that would return the asset to working condition within 24 hours. Abrasion resistant coatings were applied to the pugmill and paddles over a 12 hour period during plant shutdown, with 12 hours allocated for curing.

ENVIRONMENT

50-70°C 10-40μm abrasive particles from the dust catcher are disposed of in the pugmill and combined with water to suppress the dust creating an abrasive sludge

SUBSTRATE

Steel Substrate

CHALLENGE

Deliver an operational multi coat abrasion resistant coating system within 24 hours

SOLUTION

Thorough surface preparation prior to the application of multiple layers of abrasion resistant coatings. Spot abrasive blasting to minimise disruption to surrounding trades.

SCOPE

Pugmill Internals
Spot abrasive blast localised areas.
Apply of 1 coat of fast curing Chem-tect™ RB 364C to areas where required
Use chopped strands and where deep pitting existed to provide a smooth even profile
Apply 2 coats of Chem-tect™ RB 364CS to 1,000μm
Conduct QA, DFT and high voltage spark test to ensure continuity at required voltage

Paddles
Abrasive blast to AS 1627.4, Class 2.5 with a minimum 75μm profile.
Apply 1 coat of Epo-chem™ RW 500 to a nominal thickness of 500μm to ensure no transparent areas
Complete casting application 1 coat of InD-cote™ to 6000 micron DFT to the load and back faces

PRODUCTS

Paddles coated using Epo-chem™ RW 500 and InD-cote™

Pugmill Internals Chem-tect™ RB 364CS

OUTCOME

Chemcote’s solution has extended the life of this asset by 12-24 months, and delivered a 30% improvement in functioning. Continuous high performance is guaranteed until our review at the next planned outage.

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