Pre-Treatment Systems

To ensure the best painted surface quality for metals, the pre-treatment prior to painting is essential to improve the adhesion of the paint and improve corrosion resistance.  The surface treatment consists of phosphating with Iron or Zinc, chromating, oxalate or anodizing.  Our systems provide a solution for phosphating and similar processes.

  • Typically 304 or 316 Stainless Steel wetted parts
  • Multiple stage to suit client requirement
  • Heated Tanks using Gas or Electric
  • Ventilated entry and exit to prevent spray egress
Pre-Treatment Unit

Introduction to Pre-Treatment

The pre-treatment process is to prepare metal products for Powder Coating by cleaning the surface to be free from any contaminants, grease, oil or dust. Powder coating provides a more cohesive finish than wet painting but adhesion to the product tends to be lower. Treating the material chemically provides a better surface to help 'key' the coating to the product making it adhere properly. The result is a finish that is less likely to crack and flake and handle harsher environments. This can be used to allow certification of finish such as Qualicoat which is a recognised architectural standard.

The products are sprayed with a solution of water and chemicals to prepare the surface of the product for coating. The system will have multiple processes from a simple chemical spray and rinse to multiple chemical treatments and special rinses using other chemicals, Reverse Osmosis (RO) water and ordinary water. Some processes need the fluids used to be at certain temperatures. Our systems will provide and monitor the temperatures needed for repeatable results using gas powered heat exchangers or electrical heating elements. The output product will still be wet so typically the next process would be drying in a controlled environment such as a drying oven.

We provide inline and dip tank systems.

Inline systems typically convey a product through a series of tunnels containing each spray process. This could be by hanging product from a jig on an overhead conveyor or lay on an open mesh conveyor belt.

Dip type systems involve dipping the product into open tanks containing the fluids needed. The process is very manual and tends to be used for small volume products or larger items that cannot be placed on a conveyor.

Pre-Treatment units are bespoke product tailored to suit your needs.
To discuss your project, please contact us.

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Providing Complete Finishing Solutions

Preparation
Preparation

Equipment to prepare for finishing. This includes Pre-Treatment Units, sanding benches and Paint Kitchens.

Painting
Painting

Containment Equipment for Painting.  Powder Coating and Wet Paint Spraying are the most common.

Finishing
Finishing

For the best results, use Drying and Curing Ovens to complete the finishing processes.

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