Find out more: Anti-Corrosion Catalogue

Corrosion including rust is a worldwide problem that is gaining more and more attention. With aging infrastructures, the risk is mounting and threatens lives and property. Air-conditioner heat exchangers coil are made of aluminium fins and are more susceptible to hostile environments and contaminants that can corrode the fins, causes it to fall off and degrade the performance and increase power consumption, in worse cases it may lead to compressor failure.

An important factor is that corrosion is IRREVERSIBLE, and it always results in a weakened structure. 

1. ​​​​​PREVENTION works going forward to maintain the equipment standard quality.
2. REPAIR works is the most pressing issue, time consuming and affected the equipment standard quality.

Corrosion is the deterioration of surfaces and structures caused by a reaction to several elements and environment conditions:

Coastal Environment	Mild Chemical Environment

Daikin Anti-corrosion Treatment forms a protective barrier to prolong the air-conditioner fins heat exchanger coil lifespan and make the system work at it best optimum performance. 

Heat Exchanger Assy without Anti-Corrosion Treatment	Heat Exchanger Assy with Anti-Corrosion Treatment

TYPES OF ANTI-CORROSION TREATMENT

Coating Name	Environment	Coating Type	Coating Color	Recommended
				Location	Equipment Type
Basic Anti-Corrosion Treatment	Non-Coastal Coastal	Polyurethane	Executive Grey	Indoor	Fan Coil Unit
Heavy Anti-Corrosion Treatment	Coastal Mild Chemical	Polyurethane	Executive Grey	Outdoor	Condensing Unit Air-Cooled Chiller Self-Contained Unit
Basic Lite Anti-Corrosion Treatment	Non-Coastal	Epoxy	Red Oxide	Indoor	Fan Coil Unit
Heavy Plus Anti-Corrosion Treatment	Coastal + Chemical On Board Ship	Enamel	Ocean Green	Outdoor	Condensing Unit Air-Cooled Chiller Self-Contained Unit

ANTI-CORROSION TREATMENT FACILITY (OPERATION)

Daikin Singapore (DSP) has full facility process to locally performed anti-corrosion treatment work, spray booth features come complete with built in oven, to ensure coating treatment is baked in accordance to our work standard quality and the equipment with coating treatment performance maintained at the optimum level without compromise.

Spray Booth
Spray Coating Work Process	Under Coat Top Coat
Assembly Work Process

COATING MATERIAL SPECIFICATION

Components	Basic Anti-Corrosion Treatment Basic Lite Anti-Corrosion Treatment	Heavy Anti-Corrosion Treatment Heavy Plus Anti-Corrosion Treatment
Heat Exchanger Fins Assembly Condenser Coil Evaporator Coil	Base coat + Top coat (≥50µ)	Base coat + Top coat (≥50μ)
Bottom Frame Assembly Mounting Plate Assembly Partition Plate Assembly	N.A.	Base coat + Top coat (≥50μ)
Self Tapping Screws**	N.A.	SUS410 Stainless Steel Screws
Coating Materials	Base coat (Primer) + Top coat (Polyurethane) Coat (Epoxy)	Base coat (Primer) + Top coat (Polyurethane) ② Base coat (Primer) + Top coat (Enamel
Color	Executive Grey Red Oxide	Executive Grey Ocean Green
Suitable Location	Indoor	Outdoor
Applicable Equipment
VRV – Variable Refrigerant Volume Control Condensing Unit Wall Mounted Unit Ceiling Cassette Unit Ceiling Concealed Unit
RA – Residential Air Condensing Unit Wall Mounted Unit Ceiling Cassette Unit Ceiling Concealed Unit
SA – Sky Air Unit Condensing Unit Wall Mounted Unit Ceiling Cassette Unit Ceiling Concealed Unit
PA – Package Unit Condensing Unit Rooftop Self Contained Unit Floor Standing Unit Ceiling Concealed Unit
AP – Applied Air Cooled Chiller AHU Coil

^{**Replace to SUS410 Stainless Steel Screws}

BENEFITS OF ANTI-CORROSION TREATMENT

✔ Cost Saving

• Reduced operation down time
• Maintained optimum energy

✔ Flexible and Durable

• Coating materials easy to use & handle
• Tough coating materials

✔ Superior Corrosion Protection

• Able to withstand coastal and mild chemical industrial environment

✔ Performance Unchanged

• With anti-corrosion treatment CU performance is unchanged and negligible

✔ Increase Lifespan

• Prolong CU fins heat exchanger coil life to > 4 years (subject to maintenance frequency)

✔ Fast and Easy Maintenance

• Fast and shortest lead time
• Easy maintenance just rinse with domestic water for cleaning purpose
• Easy to do recoat work to ensure refrigerant piping is protected

✔ Water Resistance

• Coating to resist the penetration of water to ensure water flow smoothly on fins coating surface

✔ Warranty

• Anti-corrosion treatment equipment come with 1-year warranty coverage on the coating and subjected to (Care and maintenance for do’s and don’ts).

 

SERVICE FREQUENCY RECOMMENDATION

Environment/Service Frequency	Monthly	Bi-Monthly	Quarterly
Coastal	24 Hours*	18 Hours*	12 Hours*
Mild Chemical	24 Hours*	18 Hours*	12 Hours*
Coastal & Mild Chemical	18 Hours*	12 Hours*	8 Hours*

LEAD TIME

Units Quantity	Estimated Lead Time (Day) – ELT
	1HP – 5 HP	6HP – 12HP	14HP – 20HP
< 5	4	5	6
< 10	7	8	9
< 20	10	11	12
< 30	13	14	15
< 40	16	17	19
< 50	19	20	22
< 60	22	23	25
> 61	TBA*	TBA*	TBA*

^{*Packaged Unit / Air-Cooled Chiller – TBA (To be advised, consult Daikin to confirm the estimated lead time)
ELT – Estimated Lead Time subject to change without notice}

For your different site needs, please do contact us at 6311 8686 for a budgetary quote in toughening your equipment. We have 2 type of coatings available for your requirement:

Contact Us:

Tel:  6311 8686
Fax: 6349 7313
Email: service@daikin.com.sg

Monday – Friday: 9am – 5pm
Saturday: 9am – 12pm
Sunday and Public Holiday: Closed

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