Industrial Mirror Silver Pure Polyester Powder Coating for Metal Finish Electrostatic Paint

Product Description

Industrial Mirror Silver Polyester Powder Coating for Metal Finish Electrostatic Paint

Being a reliable manufacturer and supplier, we offer pure polyester resin powder coating to our clients. It is a fine mix of saturated carboxyl polyester resins as well as TGIC. We offer great interior and exterior finish. In accordance to set industrial standards, our offer range is available in wide assortment so that our clients can choose the product as per their requirement and need.
 
Polyester resin powder coating is the most used of all powder coatings in the worldwide market. Polyester's offer a broad application field and many different chemistries including: Polyester/TGIC (triglycidyl isocyanurate); Polyester/TGIC-free; Super-durable Polyester and Polyester Hybrids.
 
A variety of Polyester resin powder coating is provided by us at industry leading prices. These have superb flow and finish which impart brightness to the painted object. Apart from that, this product also has superior mechanical properties like temperature resistance and corrosion resistance. This product is available in many colors and in gloss, matt and texture finishes.

Applications

Specification

MAIN RAW MATERIALS

The raw materials of Powder coating are resins, pigments, fillers, harderner ect. Compared with lyquid paint, powder coating is environmental friendly and can reduce costs. Powder coating can form a harder finish than conventional paint and can be applied more efficient.  While it also has disadvantages, it is not good for large amd heat-sensitive objects. Usually the thickness of film by powder coating is >30 μm.

MAIN PERFORMANCE
1. Excellent UV resistance;
2.Good heat resistance;
3.TGIC free

POWDER CHARACTERISTIC
1.Chemistry: Polyester
2. Particle size: Suitable for electrostatic spraying
3. Specific gravity: 1.2-1.7g/cm3 up to colors
4. Curing schedule(object temp.): 190℃/15-20minutes;200℃/10minutes;
5. Storage: Dry ventilation conditions below 30℃
6. Shelf life: 12months

Technical Specifications

Main Material	Polyester resin,barium sulfate,titanium dioxide
Surface Type	Gloss,matte,wrinkle,sand grain,antique, Hammer,crocodile skin, wood  effect,candy,chrome,transparent,semitransparent,metallic, special pattern
Powder Properties	Specific gravity : 1.3 - 1.75 (depend on colors)  Average particle size : 35 - 45um
Coating Properties	Film thickness(ISO 2178) :Around 60 μm  Pencil hardness: ASTM D3363,H-2H  Adhesion :GB/T 9286-1998,0 grade  Bending test:GB/T 6742 ,=<2mm  Cupping test:GB/T 9753,>=7mm  Direct and reverse impact (ASTM D2794) : > 50kg.cm  Salt spray Resistance ( ASTM B117, 1000hrs)(Maximum undercutting ,1 mm ):  No blistering or loss of adhesion Heat and moisture test GB/T 1740,>=1000 hours,no change
Application Schedule	Applied by : Electrostatic spraying devices  Curing schedule :10 minutes at 200 ℃
Advantage	Good adhesion,anti-corrosion,UV resistant, strong coating film,  Accurate colors, good leveling
Shelf Life	12 months

Certifications

Packing & Delivery

50 cartons in one pallet

Adding wrapping film, corner protector and packing strap

Final packing

After Sales Service

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Before service
1.Support to customized color, glossiness, texture and pthers (FREE)
2. Support freely samples (Not including international express cost)
3.Support customized colors (ANY RAL COLOR)
4.Support FOB, CIF, DDU, DDP
5.Support other goods sending to our factory and help loading into containers (FREE for less quantity)

On service
1.Support payment terms (T/T, L/C, balanced against B/L copy)
2.Support currency (CNY, USD, EUR & DOMESTIC CURRENCY)
3.MOQ 100-500KG

Quantity
1.Guarantee steel quality same as PI
2.Guarantee surface color and details same as PI
3.Guarantee loading capacity same as PI
4.Guarantee 12 months if storage condition is good
5.Guarantee delivery time as PI

Company Profile

Nanjing Powder New Material Co., Ltd. 

Nanjing Powder New Material Co., Ltd. (as known as PURDA) is one of the professional powder coating manufacturer in china. We specialize in supplying various powder coating paints. Including epoxy powder coating, epoxy polyester powder coating, polyester powder coating, flat powder coating, texture powder coating, functional powder coating, polyurethane powder coating, acrylic powder coating and other powder coating products.
 
PURDA powder coating are widely used in home-appliances, cars and vehicles, building material, oil and natural gas pipeline, drinking water pipeline, instruments and telecommunication equipment, storage rack and metal products, transportation facilities and other equipment and tools.
 
PURDA owns lots of powder coating quality control and related certificates such as ISO9001, ROHS Pb-free test, SGS test report, certificate for safe transport, color fastness test and other Test reports and certificates of export related qualifications.
 
We cover hundreds of types of powder coating powder, including epoxy powder, polyester powder, hybrid powder, polyurethane powder, acrylic powder with not only standard colors such as reds, whites, blues, yellows and greens from flat and textures to satins and high gloss, but also special colors such as Candy, metal flake, and texture finishes.. Whether it is one or one thousand items, we go through all procedures the same to ensure that the quality of work will never vary.
 
We can offer professional powder coating solutions when our clients have trouble in using powder. We can also well avoid problems in transporting powder coating, to ensure our clients to get high quality products in hand. We are continuously improving our performance in providing value-added services for our partners and quality products for our clients.
 
Here at Nanjing Powder New Material Co.,Ltd., we cater to your needs. We are 100% dedicated to delivering a satisfactory outcome and will always provide a quality at a fair price. We thank you for your browsing and look forward to working with you in near future.

FAQ

Q1: Why indoor and outdoor high gloss powder will tarnish?
A1:
When customers use our powder coating, due to the poor sanitation and cleanness of key parts such as powder spraying room, spray gun, fluidizing barrel, etc., the new powder is interfered in the use process, resulting in the phenomenon of light loss.
Powder coating in the oven over the specified time and temperature, there will be surface loss of light.
Between each batch and batch, when the new powder and the recycled powder are mixed, the surface loss of light is easy to occur.
The storage time of powder should not be too long. If the storage time is too long, the luster will change or even lose luster.
The interference of transparent powder to other powder is very big. If transparent powder is used in the construction process, it must be cleaned and sanitary.
The powder produced by different manufacturers is mixed with each other, and the powder coating will lose luster due to mutual interference.
Some customers have poor site environment, and there are paint spraying lines around, or some customers share the same drying path with paint spraying line and powder spraying line, because some volatile gases in the paint will also cause the loss of gloss of the coating film.
 
In view of the above reasons for the loss of light, the general one is to thoroughly clean the environment and spraying equipment at the production site. Before production, clean up the equipment with new powder and start the normal production line again.
 
Q2: Why does satin and matte powder have a rising luster?
A2:
In the process of using matte powder coating, when it is mixed with other planes, the gloss of the coating will be increased easily due to the high gloss powder.
If the curing temperature of the powder coating is too low or the time is not enough, the gloss of the coating will change.
 
In case of any of the above problems, it is recommended that the customer do a good job of cleaning before production. If it is the reason of baking temperature, it is recommended that the customer test the furnace temperature for production.
 
Q3: Why does the paint film change color?
A3:
There is residual pretreatment liquid on the surface of the coating
If the baking time is too long, or the baking temperature is too high, the coating will turn yellow, especially the indoor powder coating.

Other powder coatings are mixed in the spraying process
The pigment of powder coating itself is not resistant to high temperature or the resin is prone to yellowing.
 
For the above problems, we can
The customer improves the pre-treatment process and completes the pre-treatment.
Strictly follow the curing temperature and time given by the factory for production.
Strengthen the sanitation before spraying.
Replace qualified powder coating.
 
Q4: Why there are particle lumps on the coating surface?
A4:
The surface of the coated workpiece is not clean.
Uneven powder supply and poor spray gun atomization during spraying
The powder coating is too fine or the powder is wet and agglomerated, which makes the spray gun powder
The spraying site is not clean
There are particles in recycled powder or powder coating
There is pollution, dust and oil gas floating to the surface of the paint film in the drying channel
 
For the above problems, we can
Improve the quality of workpiece base material, and sandblast if possible.
Adjust the air pressure and check that the deflector is adjusted to the best point.
Control the particle size distribution of the powder. Take good care of the powder to prevent moisture.
Clean the site and purify the air.
After passing the sieve, the recovered powder shall be mixed with the new powder in proportion, or the qualified powder shall be replaced.
 
Q5: Why there are shrinkage holes on the surface of the film?
A5:
The pre-treatment of the workpiece is not in place, and there is oil residue.
The compressed air contains oil, water, etc., resulting in powder pollution.
Contaminated by dust or other impurities.
The powder coating itself is polluted.
 
For the above problems, we can
Strengthen the pretreatment process control.
Check the air tank and air compressor regularly, and discharge the oil and water in the air tank in time.
Thoroughly clean the site environment and keep the drying channel clean.

Q6: Why does the spray surface leveling problem or orange peel appear?
A6:
Rough surface of workpiece
Adjustment of powder size, moisture or powder flow
High or low curing temperature
The coating is too thin or too thick
Poor grounding of workpiece
Mutual interference of different powders
 
For the above problems, we can

Improve the surface finish of the workpiece
Choose the powder coating with good leveling effect to prevent the powder from moisture
Adjust curing temperature and time
The thickness of powder spraying shall be controlled at 60-80 μ m, and the hangers shall be cleaned regularly
Before spraying, the powder spraying system and site shall be cleaned strictly to avoid mixing of different types or different manufacturers of powder
 
 Q7: Why there are pores and pinholes in the coating?
A7:
There are pores on the surface of the coated workpiece
The workpiece surface is not degreased and derusted thoroughly
The conductive putty is too thick to dry completely
The spray gun is too close to the workpiece, and the spraying voltage is too high, resulting in coating breakdown
There is volatile gas in the drying channel
The coating is too thick or the coating is not fully cured
 
For the above problems, we can
Strengthen the surface treatment of workpieces
Improve the pretreatment process
Extend baking time
Adjust the spraying process parameters
Clean the air in the drying tunnel and check whether the insulation pipe is damaged
Control of film thickness and curing time
 
Q8: Why does the whole coating fall off?
A8:
Poor quality of base material and improper pretreatment
Insufficient curing temperature or excessive baking
 
For the above problems
Pretreatment for improvement
Determine appropriate curing temperature and time
 
Q9: Why powder ascending rate is lower?
A9:
No high voltage or insufficient high voltage of electrostatic generator
Poor grounding of workpiece
 
For the above problems, we can
Check whether the spraying equipment works normally and adjust the electrostatic voltage and air output
Clean the hanging appliance in time to ensure good grounding
 
Q10: The problems of texture powder coating
A10:
If the thickness of the coating film is not well controlled during the spraying process, such as wrinkle powder coating and antique powder coating, it is easy to expose the bottom and reduce the grain size. Normally, the thickness of the powder film must be controlled at 100-160 μ m, and these problems will not appear basically.
Sand texture powder coating should not be sprayed too thick, too thick coating, poor mechanical properties, the surface will become rough. The thickness of sand texture powder film can be controlled between 40-50 μ M.