Quiz
Tin, letters, or a board
Five questions. A fridge souvenir, kids letters, office chips, and a whiteboard share a magnet. They do not share a construction. If it will not stick to steel, it is not the product.
Printed tin is a picture on a flexible sheet. Corners bend. It rides in a carry-on. Die-struck enamel is a metal blank with color in cells. Kids letters are characters you spell with, not a skyline print. Office tracking is names and dates that move on steel. A whiteboard is the wall those letters and chips can live on when the fridge door is already full.
Scientific American (Thomas Devine) splits ferritic stainless, which generally holds, from austenitic stainless such as Type 304, which usually does not. GE Appliances says to bring a magnet and test the door. Painted steel usually holds. Some stainless doors will. Some will not.
A car magnet is a different steel. Vehicle paint is not a fridge door. Do not put a fridge tin on a bumper and call it done. Shop the whiteboard, kids, and office filters on the catalog after you check these answers.
The lecture is Compare. Shop those families on Shop.