Tag: powder coating line

Gas Catalytic Oven Can Cure Powder in 3-4 Minutes

Yes its true , gas catalytic oven can cure the powder with 3-4 minutes. it can also be used as a booster oven to bring down drying times and reduce the length of the conventional powder curing oven and reduce on investment costs. It can be retrofitted into an existing powder coating plant/line. Gas catalytic oven reduces your fuel/energy/running costs by 50% and increase your productivity. The gas catalytic oven uses a special radiation heat transfer technique which heats the powder and not the metal. Radiation heat is created by oxidizing the gas either LPG or natural gas using a catalyst. Gas catalytic ovens can be used on flat as well as complex shaped parts.

Prism has installed many gas catalytic ovens  around the world as well as in India along with its powder coating plants and Painting lines.

What is UV Powder coating and its Advantages?

UV cured powder coatings are an industrial finishing technology giving a resilient and durable finish to a variety of materials and products. UV cured powder coatings are available in many colors, glosses and textures and formulated to meet specific performance requirements. UV powder coatings are produced in the same manner using the same equipment as thermoset
powder coatings – blended, extruded, chilled, chipped, milled, classified, sieved, and packaged. Prism is the turnkey supplier of complete UV powder coating plant and we also help you supply with the powder.

Advantages of UV Powder Coatings:

1.Environmentally Friendly
UV powder coatings contain no volatile organic compounds (VOCs), or hazardous air pollutants (HAPs), are solvent free, and non-toxic. They contain no chemicals or compounds that can damage the environment and waste materials can be recycled.

2· Efficient Process/Speed of Curing
UV curable powder coatings cure faster and use less energy than other finishing processes. More parts are finished in less time.

3.Ability to Coat Heat Sensitive Materials
UV cured powder coatings melt at lower temperatures and cure faster than other coatings. This advantage makes it possible to powder coat “heat sensitive” materials like wood, medium density fiber board (MDF), plastics, composites, and carbon fiber without damaging the substrate.

4. Small Plant Footprint
A UV powder application system uses less plant floor than other paint systems. Footprint could beas small as 185 square meters, potentially less depending on type of product finished and system design.

5. Ease of Material Handling
UV powder is safe to use and is easily recycled. Use of UV curable powder coatings does not require any permits, special air handling, operator breathing devices, or flammability restrictions. Faster and Greater Return on Investment
A UV cured powder system can finish more material in a given period of time. The benefits of a fast system are an increased operating capacity, reduced work in process inventory, lower cost of quality, less energy usage, and increased profits per hour – generating a faster and greater ROI.

 

Why Distribution Transformers Must be Powder coated And Not Painted?

Many distribution transformers up-to 220 kVA are designed to have fins all over the tank. These fins have upto 440 mm depth and have around 50 mm gap between them.It is difficult to find a spray painting gun that can penetrate the paints between the fins and deposit effectively protecting it against corrosion.These transformers are mounted on top of a post /poll and are subject to hot, humid, rainy and harsh weather conditions through out the year. The chances of repainting are very less hence the quality of coating should be able to withstand these conditions.

The conventional practice is to have a 3 coat paint system with manual shower coating as the primer coat followed by intermediate and top coat using spray painting. This 3 coat system is an efficient process wasting a lot of paint, not environmental friendly and does not cover all the surfaces between the fins.Hence in order to obtain C4 or C5 quality standards Prism has introduced a special technology where you can powder coat the distribution transformers, tanks, lids and conservators.When you powder coat the transformers you reduce on your running costs as you can reuse the powder rather than disposing it. With powder coating you also get better protection compared to painting especially when it is exposed to harsh weather conditions.

Prism has installed the worlds first powder coating line in ABB Egypt and after installing numerous transformer powder coating lines around the world.Contact the Prism team for more details.