Laser Cut Screens , Material Selection .
Weathering Steel ( Corten )
This is an architectural grade of steel used for making laser cut screens and sculptures because of the natural patina it develops with age . It has a high copper content that gives it resistance to corrosion and helps develop it’s unique colouring . To get an idea of what you’re getting in for , I suggest you search for images of Corten . Bear in mind that this material will eventually drip rusty water in the rain and if it is in an area where it can be brushed against it may leave rust marks on clothing .
Stainless Steel
You have 2 grades to choose from 316 marine grade or 304 . If the laser cut screens are to be used outside , we suggest that you specify 316 . 304 stainless will eventually rust in the elements but is fine for interior use and is substantially cheaper .
Aluminium
Aluminium is a handy option for its’ corrosion resistance and light weight . It can be powder coated in a range of colours , anodised or left in a raw state . If left in the raw it will it will dull with age . The dull surface becomes a protective layer to prevent further corrosion . You will need to avoid contact with dissimilar metals , this can cause electrolysis , especially in marine atmosphere
Mild Steel
Mild steel is the cheapest option for a laser cut metal screen . If you are planning to have your screens powder coated, this is a sound option . For external use we recommend blasting , zinc priming and powder coating .
MDF and Plywood
These are good options for light weight interior screens . You will need to bear in mind that once the pattern has been cut it will loose a lot of its’ strength , some patterns are better suited for timber screens .