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Chemco Case Studies

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Epo-chem™ RL 500PF on Galvanised Steel

By on October 10th, 2016 in Marine
Galvanised steel ready for protective coating

Industry                            Marine   Date October 2016   Substrate Galvanised Structural Steel   Products Epo-chem™ RL 500PF   Environment                    Aggressive marine conditions   Challenge This project presented two challenges to our team. The first challenge was coming up with a coating system that would adhere well to galvanised steel. The second challenge was making sure that read more ►



Corrosion Protection For Hot Salt Water

By on September 12th, 2016 in Power Generation, Pumps & Piping
Holiday testing RB 300 internal coating

Industry: Power Generation Date: 2016 Substrate: New fabrication using mild steel Products: Chem-tect™ RB 300 series Epo-chem™ RL 500PF RC 500GTC finish coat Environment: Hot salt water Challenge: The project was a series of pipe spools with diverse configurations and diameters. These items required long term corrosion protection against high temperature salt water. This would read more ►



Structural Steel

By on January 13th, 2016 in Power Generation

Industry:                             Power Generation   Date: 2015   Substrate: Critical support structure for 40 year old overhead pipe services into turbine hall   Products: Epo-chem RS 500P™ a wet and surface tolerant mio epoxy primer and Epo-chem™ RA 500 series, a moisture read more ►



Condenser Tube Sheet

By on December 2nd, 2015 in Power Generation

Industry:                             Power Generation – Sugar Mill   Date: 2015   Substrate: 8 Year Old – Mild Steel water boxes & Stainless Steel tube sheets   Products: Chem-tect™ RB 300 series, a glass flake filled vinyl ester, provides excellent permeation resistance and read more ►



Bischoff Scrubber

By on November 11th, 2015 in Steel Manufacturing

Industry:                        Steel Manufacturing   Date: July 2009   Substrate: Carbon steel (20mm thick)   Product: Chem-tect™ RB 332, a glass flake filled vinyl ester.   Environment: Recirculated salt water 60°C with fine particles   Challenge: Carry out inspection to internal lining as the work carried read more ►



Refurbish Fibreglass Tanker

By on October 28th, 2015 in Chemical

Industry:                       Chemical Transport   Date: March 2012   Substrate: 5 year old Fibre Reinforced Plastic Tanker   Products: Chem-tect™ RB 332, Glass flake reinforced vinyl ester   Environment:               13-15% Sodium Hypochlorite   Challenge: Asset owner required  us read more ►



Epo-chem™ 500 Series for Pump & Base

By on October 6th, 2015 in Mining and Mineral Processing

Industry:                       Mining and Mineral Processing,   Date: April 2010,   Substrate:  Steel multi-stage pump casing, galvanised coupling,   Products: Epo-chem™ RL 500PF, Epo-chem™ RW 500 – Solvent Free Novolac Epoxy,   Environment:                 80°C corrosive aqueous ammonia,   Challenge: The client required an external coating system to provide read more ►



Sea Chest

By on September 23rd, 2015 in Marine

Industry: Marine – Shipping Date: April 2001 Substrate: Cast iron sea chest Products: Chem-tect™ RB 300 Series – Glass Flake filled vinyl ester resin RC 200 Antifoul Environment: Sea Water Challenge: The internals of a sea chest located in the engine room were heavily corroded and required refurbishment. This included encapsulation and effective dust extraction read more ►



Cold & Wet Pipe Externals

By on September 17th, 2015 in Chemical, Petrochemical

Industry:                       Chemical Manufacturing   Date: 2010   Substrate: Steel Substrate   Products: Chemco Epo-chem™ RS 500P (Moisture & Surface Tolerant) Chemco Epo-chem™ RA 500M (Wet Tolerant)   Environment: Ammonia Pipeline externals   Challenge: The ammonia lines had been in service since the plant was built. This has caused severe external corrosion caused holes to form read more ►



Ballast Tank

By on September 16th, 2015 in Marine

Industry:                        Marine – Oil & Gas Date: April 2009 Substrate:  Mild Steel Products: Epo-chem™ RS 500P Epo-chem™ RA 500M Environment:                 Sea mist & sludge Challenge: Due to the high cost associated with environment control and grit read more ►



Repair Abrasion Erosion effected Pipe Internals

By on September 10th, 2015 in Steel Manufacturing
Pipe re-installed after 2 days now ready for service

Industry:                      Steel Manufacturing   Date: November 2014   Substrate: Internals of small diameter pipe.   Products: Chemco International – InD-cote™ Top coat using RP 500 AR             Environment: Abrasive Coke Breeze temperatures up to 60ºC.   Challenge: Existing pipe lasts 4 weeks in service before a hole appears and valves read more ►



Exhaust Stacks External Corrosion

By on September 2nd, 2015 in Oil and Gas

Industry:                           Co-generation & Gas Date: November 2010 Substrate: Mild Steel Products: Epo-chem™ RL 500PF – Surface and moisture tolerant zinc rich epoxy Environment:                   Methane gas co-generation plant exhaust stack trials. Challenge: 15 year old plant was showing signs of premature corrosion within 3-4 years of commissioning. Spark free surface preparation was a strict requirement. Plant read more ►



Pool Filtration

By on July 23rd, 2015 in Water Utilities

Industry:                      Water Treatment   Date: 2009   Substrate: 304 Stainless Steel   Products: Chem-tect™ RB 300 series Epo-chem™ RL 500PF   Environment: Seawater/chlorinated – treatment water   Challenge: Short time frame requiring quick turnaround. Customer required provision of long term corrosion protection.     Chemco’s Solution: Working around the clock and the application of proven read more ►



Hot Car Structure

By on July 23rd, 2015 in Steel Manufacturing

Industry:                       Steel Manufacturing   Date: January 2015   Substrate: Mild steel substrate   Products: Epo-chem™ RE 500P & RW 500   Environment: 1,000°C Coking Coal transport wagon and moved to the quenching station, where 80°C recirculated water is used.   Challenge: Major structural steel repairs are carried out every two years due to the aggressive read more ►



Fume Suppression Pipe

By on July 22nd, 2015 in Steel Manufacturing

Industry:                      Steel Manufacturing   Date: October 2014   Substrate: Externals of Conical Sections of 6mm wall pipe sections   Products: Chem-tect™ RB 332AR, Epo-chem™ RC 500GTC       Environment: Abrasive Coke Breeze ranging in temperatures from 60-100°C   Challenge: Inspections found wall thickness to be worn internally after 25 years in service. This was prevalent read more ►



Preheater Internals

By on July 22nd, 2015 in Steel Manufacturing
Chemco quality assurance completed ready for service

Industry:                       Steel Manufacturing   Date: October 2014   Substrate: Mild steel substrate   Products: Chem-tect™ RB 332   Environment: Coke Ovens Gas and residue   Challenge: Leading steel manufacturer has a preheater in service for a number of years with previously applied coating failing due read more ►



Gas Scrubbing Pipe

By on July 22nd, 2015 in Steel Manufacturing

Industry:                      Manufacturing – Steel Date: May 2014 Substrate: Mild Steel Fabrication Products: Chem-tect™ RB 300 Series Epo-chem™ RL 500PF Environment:              40-60°C Saturated Blast Furnace Gas – carbonic acid, which in turn reacts with iron to form iron carbonate and hydrogen gas. Challenge: The internals of the pipe which were previously lined using a ceramic filled read more ►



Chiller

By on July 22nd, 2015 in Petrochemical

Industry:                            Petrochemical – Oil Refinery,   Date: 2002,   Substrate: Mild Steel water boxes & bronze tube sheets,   Products: Chem-tect™ RB 300 series,   Environment: 60-80°C, re-circulated & sea water,   Challenge: Tube sheets of this chiller were severely corroded due to a galvanic reaction between dissimilar metals. A 72 hour shutdown period was read more ►



Structural Steel

By on July 22nd, 2015 in Oil and Gas
oil deck pic

Industry:                           Oil & Gas, Date: April 2009, Substrate:  Structural Steel, Products: Epo-chem™ RS 500P, Epo-chem™ RA 500M, Environment:                   Hot and humid, sea mist, Challenge: Highly corroded carbon steel decks would have taken 12 months to re-surface with riding crew permanently on board. Corrosion would have re-appeared upon completion under high humidity and rain conditions. Chemcote’s read more ►



Heat Exchanger Vessel

By on July 17th, 2015 in HVAC, Oil and Gas, Power Generation
Application of RA 532 a moisture tolerant glass flaked filled epoxy

Industry:                         HVAC, Power Generation, Oil & Gas,   Date: February 2012,   Substrate:  Cast Iron,   Products: Epo-chem™ RS 500P, Epo-chem™ RA 532,   Environment:                 Recirculated water,   Challenge: This heat exchanger vessel was manufactured in 1981 and installed shortly after. Fatigue cracking was found in some read more ►



Hot Air Impeller

By on July 17th, 2015 in Mining and Mineral Processing

Industry: Mining & Mineral Processing Industry,   Date: April 2010,   Substrate:  Fabricated carbon steel fan,   Products: Epo-chem™ RS 500P, Ceram-chem™ RU 500,   Challenge: During the extraction of hot air fumes, the hot air impeller came under attack from atmospheric moisture and abrasion due to crystalline quartz dust in the air. This proved costly read more ►



RB 300 – Sea Water Volute

By on July 17th, 2015 in HVAC

Industry:            HVAC,   Date: March 2006,   Substrate: Admiralty bronze 200/200,   Products: Chem-tect™ RB 300 – Glassflake filled vinyl ester, Ceram-chem™ RP 500 – Ceramic filled epoxy designed to improve lumber flow,   Environment: Ambient Sea Water,   Challenge: Original pumps were suffering severe corrosion and cavitation.     Chemco Australia’s read more ►



Oil & Gas Rig Decks

By on May 15th, 2015 in Oil and Gas

Industry: Oil & Gas Industry,   Date: April 2010,   Substrate: Carbon Steel Rig Decks,   Products: Epo-chem RS 500P Chem-tect RA 500M   Environment: Wet & Humid, atmospheric moisture    Challenge: Heavily corroded steel rig decks would have taken 12 months to re-surface with riding crew permanently on board. Corrosion would have re-appeared upon read more ►



Suction Tubes

By on May 12th, 2015 in Power Generation

Industry: Power Generation,   Date: Aug 2012,   Substrate: Cast Iron,   Products: Chem-tect RB 300 Series – Glass flake filled vinyl ester resin Chem-glass RC 200 Anti foul – Copper pigment based polyester resin   Environment: Ambient Salt Water,   Challenge: To extend the operating life of heavily corroded, 30 year old suction tubes, read more ►



Sea Water Volute

By on April 21st, 2015 in HVAC

Industry: HVAC, Date: March 2006, Substrate: Admiralty bronze 200/200, Products: Chem-tect RB 300 Ceram-chem RP 500 Environment: Ambient Sea Water, Challenge: The original sea water volute pumps were suffering severe corrosion and cavitation. The pumps would require refurbishing and machining to original profile.   Volute after blasting      Impeller eye coated     External read more ►



300 series for Intercooler Vessel

By on April 19th, 2015 in Power Generation

Industry: Power Generation,   Date: November 2001,   Substrate: 10 year old carbon steel Intercooler Vessel,   Products: Chem-tect™ RF 300P, Chem-tect™ RF 332, Epo-chem™ RL 500PF   Environment: High Pressure Steam, exceeding 150°C,   Challenge: The vessel was experiencing severe corrosion and metal loss. We had a short window to machine rebates in all read more ►



500 series for Water Treatment Vessel

By on April 13th, 2015 in Oil and Gas
treatment of vessel internals

Industry: Oil & Gas Industry,   Date: March 2008,   Substrate: Lining on produced water treatment vessel,   Products: Epo-chem™ RW 564,   Environment: Produced water environment (coalescing) at 95°C,   Challenge: The original coating was failing with osmosis blistering and exposure of the substrate to the cargo which caused localised corrosion pitting. Remedial work read more ►



RB 300 series for Guide Vanes

By on April 12th, 2015 in Power Generation

Industry: Power Generation – Hydro,   Date: September 2000,   Substrate: Cast Iron – 20-30 years old,   Products: Chem-tect™ RB 300 series,   Environment: Fresh water,   Challenge: Guide Vanes were suffering from severe corrosion resulting in metal and sealing face loss due to SRB causing deep pitting corrosion.     Guide Vanes upon read more ►



RB 300 series for Cooling Water Systems

By on April 8th, 2015 in Oil and Gas, Petrochemical
Attention to detail with every hole plugged

Industry: Petrochemical – Oil Refinery,   Date: 2002,   Substrate: Mild Steel water boxes & bronze tube sheets,   Products: Chem-tect™ RB 300 series,   Environment: Ambient sea water inlet side and 60-80°C outlet side.   Challenge: The cooling water system was severely corroded and required refurbishment. The tube sheets were corroded due to a read more ►