The basics Super magnets line are Super Neodymium Magnets with Adhesive. The benefits No glue is needed with these magnets, just peel off the adhesive liner and stick to your craft or project. The uses Industrial-strength acrylic foam adhesive conforms to the irregularities of rigid substrates and adheres the magnet to a multitude of materials including wood, plastic, ceramic, rock, paper and much more. The bottom line  Full cure time for adhesive is 24 hour.