The border is made of plastic and a plexiglass that covers the poster. The back is made from cardboard, which makes the frame lightweight. For easy hanging, the back has a hook as well.
There is an option to install a mat as well. However, you won’t see double matting in these frames because they will add extra weight.
Snap frames is another great option. Usually, snap frames load the photos from the very front, which allows you to replace the photo without removing the frame. For ease of access, all of the sides of the frame are open. They are good for movie posters.
Acid-free poster frames
When buying a poster frame, make sure you know whether it’s acid-free or archival. Ask yourself if you need to use a poster to beautify your room or you need to use one to preserve a memorabilia or a piece of art. If you want to use it for preservation purposes, you should give a go to a higher quality material.
Archival Poster Frames
If you want to preserve an artifact, you can take your poster frame to a professional to see if it is acid-free or not. This way you can rest assured that your pictures would be saved for a long term.
If you want to get started with archival picture frames, you may want to opt for one with the back of an acid-free paper. By definition, an acid-free paper has base pH of 7 or slightly higher. Besides, this type of paper is free of sulfur, which makes it an ideal choice for prints that tend to degrade with the passage of time.
You don’t have to go for the acid-free option. UV filtered glass gives you protection from the powerful UV rays. These rays negatively affect the picture within a few years based on the exposure level. Aside from this, conservation glass is relatively heavier and costlier. If you break it by mistake, your photo may get damaged.
As far as weight and other features are concerned, plexiglass frames are a good choice. Just make sure you don’t go for the ammonia-based cleaners. Another thing that you should keep in mind is that the print shouldn’t touch the glass surface or the condensation may show up on the internal side of the frame.