Powder coating is an economical way to provide high quality finishes in durability, corrosion protection and resistance in weathering , chemical resistance and impact while extending the life of your products at lower manufacturing costs compared to many alternatives.
We are committed to offer at the most cost effective, efficient and high-quality coating service to our clients.
Following are the 2 methods powder coating commonly in used:
- Thermoplastic powders melt and flow when heat is applied, but they continue to have the same chemical composition once they cool and solidify.
- Thermosetting powder coatings also melt when exposed to heat, but they then chemically cross-link within themselves or with other reactive components.
Below are the common powder coating type in use to apply the coating for interior or exterior materials and appliances or products made in steel, metal or aluminium or any applicable materials.
Epoxies is ease of use and provide materials coating in durable, offer excellent hardness and have arguably the best chemical and corrosion resistance of all available powders. Epoxies is a two-part system, composed of both a resin and a hardener with color added to complete the finishing.
Epoxies are commonly used in interior materials and appliances - For Homes, commercial buildings, facilities and automotive
Polyesters coating provide a good mechanical resistance, including great flexibility and impact resistance, and good chemical resistance. Polyesters comes in varies of color, gloss levels and special effect compare to epoxy and limited resistance UV
Polyesters is recommended use for interior materials or appliances and limited of exterior materials and appliances
Epoxy-Polyester Hybrid provide a superior weather degradation, creation in ultra-smooth, thin films and chemical resistance, overbake resistance and anti rust protection.It is commonly applied to all indoor appliances products
Hybrid is recommended use for all appliances products materials. Added extra durability and high performance at lower cost
Super Durables is an excellent value powders offer superior durability ,better humidity and corrosion resistance, color and gloss protection in better way.
Super Durables is recommended for any interior and exterior materials or appliances
Fluoropolymers provide the most durables, corrosion resistance , excellent weatherability and also a world-class color and gloss retention choices used for exterior architectural applications like curtain wall, windows, doors and more
Fluoropolymers is recommended for exterior architecturer materials or any exterioir appliances. Offering warranty from applicators
POWDER COATING VALUES
Powder Coating method adhere the powder to the materials surface providing a high-quality finishes in durability, corrosion protection sand resistance in weathering , chemical resistance and impact while extending the products longevity at lower cost compare to others.
Following are the list of powder coating values and beneifts :
Engage with the powder coating company that is capable to provide an excellency and quality of finishing in powder coating.
Limitation is in operating a powder coating process would require to have the complete facilities of powder coating equipments and group of staff with an experiences operating in powder coating industry.
Outsourcing powder coating service is more cheaper and an effective method to lower existing manufacturing costs and help increase the profitability. The best part about outsourcing powder coating services is it allows you to focus on developing your primary market with little to no burden of production.
The importance of outsourcing is to reduce the company operation costing and better focus for company in the primary business
Outsourcing VS Self Managed Coating
Outsourcing VS Self Managed Coating
POWDER COATING FACILITIES
PRE-TREATMENT
Initial step to prepare materials where applying cleaning and pre-treatment operations to ensure that surfaces to be coated are clean and free of grease, dust, oils, rust and other contaminants.
Pre-treatment offering in variety of stages and process differently depends on the type of materials.
Pre-treatment will increase the materials anti rust protection.
CONVEYOR PLATFORM
Conveyor platform is commonly used in power coating for handling a products through the powder coating process.
Important conveyor features include:
Compact and able to handle tight curves for materials
Offer hooks and carriers suitable to hold materials
Powder booths are designed to safely contain the powder overspray.
Powder booth maximize the usage of powder materials during coating is applied. Main functionality usage is for color treatment and recycling usage of powder during the process of coating
Batch Oven contains of multiple process involvement in Curing process for heating the powder coating in a special oven that reaches temperatures for a certain of time.
This allows the synthetic polymer chains to bond, resulting in permanent coating. Curing requires to perform in Oven.
OUR FACILITIES
Wei Hung Powder Coating facilitate with latest powder coating systems and tools imported from Wagner, Germany.
Utilising the facility equipments and tools will provide us a greater flexibility option and increment of our productivity values effeciency without any downtime.
OUR CONVEYOR PLATFORMS
Conveyor is mainly used in factory for handling of materials through a cycle of process into a different segmentation at more efficiently.
Our facility is operating with 3 units of conveyor platform designated based on our workflow process to provide us the flexibility and efficiency process in our powder coating workflow.
Our full conveyor powder coating production line system with multi-cyclone ICM spray booth equipped with fully automatic spraying guns from Wagner, Germany.
COMPLETE CONVEYOR PRODUCTION LINE SYSTEM - PRE-TREATMENT FACILITIES
OVEN FACILITIES
Oven process materials in a high temperature released by the oven melts the thermoset powder and subsequently allows chemical reactions to take place before the materials reaches its full curing state.
Powder coating oven is a well-received industrial oven for the excellent benefits it offers. As Oven comes in a variety of sizes and capacity, each provider may have a differ of ranges supported.
Our batch oven exposes the product to heated circulating air to promote rapid evaporation of moisture. The time and temperature cycle depends on product material, thickness, and ability to drain.
Our Batch Oven is capable to support materials up to length of 240 inches materials (609.6 cm). Contact us for more specific details.
SPRAYING AND POWDER BOOTHS
Our automatic powder booth comes with manual reinforcing facility.
The booth is castor mounted to allow off-line cleaning. A second booth, previously cleansed, could be positioned on-line in a few minutes requiring minimal time to complete the colour change with the cleaning of the spray guns and recovery cyclone.
MULTI-CYCLONE ICM SPRAYING BOOTHS
AUTOMATIC SPRAYING GUNS
PRE-TREATMENT FACILITIES
Pre-treatment is an initial process and used for surface preparation before the adhesion of the coating and as well after coating process if require.
Our facilities consist of 2 types of pre-treatment facility.
- 5 Stage tanks pretreatment
- 9 Stage tanks pretreatment
Our pre-treatment 5-stage tanks is pre-built with our conveyor platform and is automated operating on tanks and pumps, to ensure the materials is ready for the next process
Our 9-Stage Pre-treatment tanks is a separate facility manually handle by our team
Pre-treatment workflow diagram
QUALITY ASSURANCE FACILITIES
Our facility inclusive of quality control laboratory operating with the complete set of equipments and tools to perform any quality check and quality test on all process materials managing by our group of QC expertise team.
Our team will perform the require quality test and quality check on the materials or products before and after the process from our facility throughout the entire powder coating workflows and for any defect materials will be sent to QC team to perform the quality test.
Following are the numerous quality test and quality check type can be conduct from our laboratory.
Coating thickness is measured at five points (min.1 cm2) on the surface and approximately 3 readings are taken at each point.
The average of the readings at each point is written as ” the measurement result’’ on the test report.
If any of these measurement results is less than 80% of the required value, the result is negative.
The measurement results are evaluated as shown in the examples given below.
Required Value:
It is important to measure the gloss as the paint application progress, this helps in early detection of wrong application and saves time and efforts. Also, it helps in determining the degradation in the coating as exposed to real working conditions.
Gloss
According to the standards EN ISO 2813,gloss is measured objectively with a gloss meter.
The gloss is measured in general under an angle of 60°.
The expected values ;
Glossy 71-100 GLOSS
Semi-Mat 31-70 GLOSS
Mat 0-30 GLOSS
The higher the gloss level, the higher the reflectance
To select a coating thickness gauge, we need to know the substrate first.
Coating thickness gauges that can non-destructively measure the metal substrate or non-metal substrate are most widely used.
Such as the high-precision coating thickness gauges of magnetic thickness measurement and eddy current thickness measurement principles and ultrasonic coating thickness gauges.
Magnetic thickness measurement + eddy current thickness coating thickness gauge can measure the non-magnetic coating thickness on the magnetic metal substrate surface and the non-conductive coating thickness on the non-magnetic metal substrate surface.
An impact testing machine is used to determine the resistance of a material or component to a rapid load under varying temperature conditions.
According to the standards EN ISO 6272, deformation of powder coated surface is tested with an impact tester.
It works with a mass of 1 kg that falls from different heights on the coated surface (direct : on the coating, indirect :on the reverse side of the coated test panel).
The impact test should be carried out on reverse side of the significant surface, but the result should be evaluated from the significant surface side. The test should be carried out on coating with minimum thickness required.
The impact is quoted in kg.cm, as no cracking.
The Solvent Rub Test is usually performed using methyl ethyl ketone (MEK) as the solvent.
The MEK resistance or degree of cure applies to paint topcoats and primers.
ASTM D4752 involves rubbing the surface of a baked film with cheesecloth soaked with MEK until
failure or breakthrough of the film occurs.
The type of cheesecloth, the stroke distance, the stroke rate, and approximate applied pressure of the
rub specified.
The
rubs are counted as a double rub (1 rub forward and 1 rub backward constitutes a double rub).
It provides a quick relative estimation of degree of cure without waiting for long-term exposure results.
It has been reported that the tests of two-component zinc-rich primers has shown good
correlation with the
cure of the primer as determined by diffuse reflectance infrared spectroscopy
.
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The other element to consider with lighting is the distance from which you are viewing the surface, especially when checking for any type of surface defects.
You will get a different result if you look at a 90-degree angle at arm’s length than from a 45-degree angle closer up.
Our advice would be to do the visual test with lighting in an office-type setting, out on the shop floor and outside in the daylight – cover all bases
View our wide range of Colors and Textures offering in coating finishing.
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Learn more about our services coverage and solution applicable for your materials.
Get to know our expertise and workflow in powder coating
Overview of our facilities and infrastructure operating the powder coating process.
Our capabilities and flexibility in processing your materials .
Our Warranty is offered to you from our authorization approved by our authorise supplier known globally.
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Care & Maintenance details
OUR ACHIEVEMENT - PROJECTS
View our track of project records and our achievement in powder coating industry offering the coating services and solutions