Creating a new food process

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Creating a new food process

Australia has very high standards for food hygiene which is why it is very challenging to run a food processing plant in Australia. It is worth all of the challenges though because the fact that a company has been able to make a food product in Australia becomes a sign of very high quality. This blog has some tips from manufacturing experts and professionals on how to get a food processing plant in Australia to meet the relevant national and state quality standards. I hope it is useful for anyone who is looking to start or upgrade their current food manufacturing business.



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4 Factors That Prevent Powder Coat Uniformity

Have you noticed that the powder coat/film on your products isn't uniform? Read on and discover some of the factors that could have caused that problem. Use this information to talk to the fabricator or select another more experienced fabricator for future batches of products.

High Output Speed

Fabricators normally set the powder coating machine to release the powder mix at a predetermined rate. The resultant powder coat can lack uniformity in case the machine was programmed to release the powder at a very high rate. Such a high rate can prevent the powder from spreading out quickly enough to settle on the substrate in a uniform way. This defect can be avoided by using a slower rate of powder discharge.

Defective Pretreatment

Surfaces that are going to be powder coated need to be prepared carefully so that the powder coat will adhere to the surfaces. For example, all impurities, such as grease and oil, must be removed before the item is taken into the powder coating chamber. Otherwise, the oil may prevent or attract more powder than is required at a particular spot. Different powder coating techniques require different pretreatment steps. For example, some techniques call for the creation of static electricity on the surface so that the electric charge will attract and hold the powder coat before the item is put in an oven to cure. Fixing the pretreatment shortcomings can, therefore, allow the coat to adhere uniformly.

Incorrect Film/Colour Mix

Powder coats contain different types of ingredients, such as metallic additives, to enhance the perceived colour depth of the coated surface. These different ingredients are programmed in layers. A mistake in the film setting of one of those components can result in lack of uniformity in the resultant powder coat. This problem would have been avoided if the fabricator had run sample parts to ascertain the appropriateness of the film thicknesses selected.

Inadequate Curing

As already mentioned, powder coated products are placed in an oven to cure. The coating can lack uniformity in case the curing conditions aren't suitable for the application. For instance, some of the powder can drop off sections of the substrate if the heat in the oven doesn't reach the furthest points of the product.

It is evident that lack of uniformity in powder coats can often be traced to mistakes in the different steps of the powder coating process. It is therefore essential for you to select a powder coating professional carefully. Such a person will take all the necessary precautions to deliver a flawless powder coated product.