Rear Mounted or Sandwich?

So what's the difference between 'Rear Mounted' or 'Sandwich' Perspex art, well here goes!

Sandwich:

Image is placed between two sheets of Perspex. Some times the reverse of the image is mounted to the hidden second sheet of Perspex to stop the image moving. However some people do not mount the image and use the fixings (standoffs) to keep the image in place so that the consumer can change the image in the future using the same Perspex and standoffs.

Sanwich's tend to be Perspex combinations up to 12mm (but usually 10mm) as this is the common limit of most Perspex fixings (standoffs). The most common is two sheets of 5mm Perspex either side of the image, this is because less than 5mm usually result in a sheet of Perspex that is slightly flexible. So be aware if companies offering 2mm rear and 8mm front combos. The thicker 8mm might give a better visual affect to the front of the image but the back could sag away from the image and show ripples in the image if an adhesive of some description is not used.

Rear Mounted:

This method involves the bonding of the image face to the Perspex. This method allows light and colours to interact with the image in a far better way and gives an almost 3D effect. This effect is also enhanced by the use of thicker high quality Perspex and a rear panel is not required.