The weekly dusting routine

A framed poster is not a painting. The surface you touch is glass or plexiglass, and the paper inside is not meant to be cleaned directly. Start with a dry microfiber cloth and wipe the glazing in straight passes. Work top to bottom so dust does not settle back onto the clean area. Do this once a week in a normal home, more often if the room is dusty. The goal is to stop grit from being dragged across the surface later. A soft brush can lift dust from the frame gap, but do not push it into the joint.

If the print has been hanging near a window or a hallway, check the corners first. Dust gathers there and can turn into a faint ring over months. A cotton swab wrapped in a corner of the cloth reaches the edge without touching the seal. Never use a feather duster on glazing, because the feathers leave micro scratches that show up when light hits the glass at an angle. The frame itself can take a dry cloth too, but keep the cloth away from any fabric matting inside.

Cleaning the glass and the plexiglass

The cleaning method depends on what covers the print. Standard glass tolerates a cloth dampened with water and a drop of mild dish soap. Wring the cloth out first. Cleaning Otto Dix framed poster surfaces with a wet cloth that drips is how water reaches the paper edge. Spray the cloth, not the frame. Wipe gently and follow with a dry cloth before any moisture can sit. Paper and mat board take up water slowly, and a stain at the edge is hard to reverse.

Proper care for plexiglass-framed prints is different. Plexiglass scratches more easily and clouds if cleaned with the wrong product. Use water on a soft cloth and avoid ammonia, alcohol, or any glass cleaner that lists solvents. A plexiglass front is common on lighter frames and on prints that ship with a lighter glazing option. If you are unsure which glazing you have, check the frame maker's mark or the original packing note. When in doubt, treat the surface as plexiglass and use the gentler routine.

Storage and long term placement

Where the print hangs matters as much as how it is cleaned. Direct sun fades paper and darkens the frame over time, and Otto Dix's tonal work shows fading plainly because the contrasts are part of the image. Hang it on a wall that gets indirect light, and avoid the space above a radiator or near a heating vent. Heat dries the paper and can loosen the backing over years. A room that stays roughly steady in temperature is easier on the print than a room that swings between cold and warm.

If you need to store the framed poster, wrap the glazing in acid free paper first, then wrap the whole frame in bubble wrap with the bubbles facing away from the glass. Store it flat if you can, and do not stack other objects against the face. A print that is taken down for a move or a redesign should be cleaned before it goes into storage, because dust left on the glazing can set into a film. The framing hardware should be checked once a year, since a loose screw can tilt the frame and stress the joint.