Wet paint spraying is a technique used by professionals and amateurs alike.
Wet spray painting is a process in which a liquid coating is sprayed onto an item to provide a high-quality finish. The most common forms of spray paints are Polyurethane, Epoxy, and Micaceous Iron Oxide (MIO).
The extractor fan system in the wet spray hanger
How to wet spray?
Wet spray painting is typically applied using compressed air, where the liquid paint is sprayed over the item using a spray gun.
You can see the smooth finish of HZS
What process should I do before wet spraying?
The end finish is reliant on the base material is appropriately prepared. We always recommend that the item is shot blasted to remove any oxidisation or debris. If the item needs protection from the elements, then we recommend that it’s galvanised by Hot zinc Spray here at NSP or dip galvanise by a third party.
What are the benefits of wet spray painting?
Wet Spray paint gives a high-quality finish and is ideal for large, heavy, and awkward-shaped items; It’s a cost-effective finish, especially on large items. You can protect items against fire with incandescent paint. There is an almost infinite range of paint colours, and its ideal for articles that can’t be heated (unlike powder coating).
A pair of gantries that were Shot blasted, HZS and wet sprayed
What’s the difference between powder coating and wet spray?
Powder coating is a process where the powdered paint is statically charged and then sprayed onto an earthed item, and the result is that the static causes the powder to stick. This is then heated in an oven to cure. Whereas wet spray paint can be air-dried over a short period of time.
Can you wet spray intumescent paint?
Yes, intumescent paints are solely for the protection of structural steel in the event of fire, these paints are highly specialist and need dedicated spray equipment to process the paint.
Before applying intumescent each section of steel and any fabrications attached to the steels needs to be calculated in a software package, i.e., weight, thickness, size, then paint loadings will need to be calculated according to these results.
What equipment do you need to wet spray?
Ideally, you need a space that has a circulating air system and is dust-free. generally, in commercial spray painting, the items are mainly large, structural steel, gantry’s etc. and need a large area to be painted as items will often be too big to hang and need to be manipulated to coat all sides, once these are finished, they will typically need 12 -24 hours drying time where no other operations can take place in the same area otherwise there will most likely be contaminants that will result in spoiling the finished work.
Just a small sample of colours
Can you have any colours?
Yes, you can have any colour you want. The British standard RAL colours will be sufficient for most jobs, but unique colours can be achieved by mixing paints.