Die casting is used as a means of mass fabricating parts quickly and efficiently. Makes sense then, that if finishing is required you want this extra step in the process to be fast and efficient too.
But what exactly is powder coating? Why use it as a surface finish solution? And how could it benefit your die cast components?
Here the team at Lupton and Place, explore some of the answers.
What is powder coating?
Put simply, powder coating is a dry finishing process and is a popular way of painting metal parts.
Applied as a dry powder, which is held in place by an electrostatic process, it is a reliable method that avoids the drips and wastage associated with regular paint.
An electrical charge fuses the powder (in a colour of your choice) to the surface of the part, which is then ‘baked’. The result is a hardwearing and attractive finish.
But that’s just the tip of the iceberg. Choose to powder coat die cast parts and there are numerous advantages to be reaped…
5 benefits of powder coating
1. Durability
Need to protect your part from scratches, chipping, and corrosion? Then powder coating is a great option.
Creating a tougher finish than conventional paint, powder coating can produce a thick layer without running or sagging. Consistency in the finished look – whether parts are coated horizontally or vertically – is excellent.
The thermal bonding process that locks the powder coating into place enhances the durable qualities of each part, increasing weather resistance and minimising the impact of any harsh environmental factors.
2. Speed
Powder coating mimics the die casting process in that it too offers speed paired with efficiency.
There’s no time wasted waiting for paint to dry. Parts are sprayed and then immediately cured.
And with all paint applied in one application (thickness is carefully controlled so there’s no need for repeat coats), the process is dramatically sped up in comparison to traditional painting.
3. Savings
Thanks to the enhanced durability of powder coated components, the lifespan of parts is increased which, long term, can increase cost efficiencies.
In comparison to alternative methods, fewer raw materials are used in this process and less equipment is required. There is also minimal waste during the application. This helps to generate savings by reducing both wasted paint and clean-up costs.
4. Consistency
Favoured for a consistent colour there’s no need for endless layers of paint – powder coating is applied in one go in a thickness of your choice.
A powder finish is also far less susceptible to fading than regular paint, which helps to secure the longevity of your die cast part.
5. Reduced environmental impact
The powder coating sticks to the surface of metal parts without the need for solvents or harsh chemicals.
The amount of ozone-damaging VOCs (Volatile Organic Compounds), found in powder coating is also negligible in comparison to traditional paint.
Are there any disadvantages to powder coating?
The honest answer is, no, not really. Although it does depend on exactly what it is you want and need from your end part.
The process of powder coating can result in a slightly dimpled texture (think orange peel) but unless you require a perfectly smooth finish this is largely regarded as quite aesthetic.
Powder coating from Lupton and Place
If you’re considering powder coating as the finishing process for your die cast part, why not talk your project through with a member of our experienced team?
We’ll happily discuss your requirements in detail and offer expert advice on the right finishing method to achieve your desired results.
Get in touch today.