Please note that no exchange is possible in the case of products cut from rolls.
The given adhesive strengths of the magnets are actually the removal force measured vertically to the adhesive surface at 21 °C. Serving as the adhesive surface was a ground steel sheet St 37 with a thickness of 5 mm. 10 N (Newton) strength is the equivalent of about 1 kilogram weight.
isotropic hard ferrite 4/24p, mixed with flexible plastic (PE) binder, front side with permanent adhesive, reverse side is magnetic, high adhesive strength (0.55 N/cm²), th = 1.0 mm
semi-anisotropic hard ferrite 5/18p, mixed with flexible plastic (PE) binder, non-magnetic side has self-adhesive coat, high adhesive strength (0.40 N/cm²), th = 0.75 mm, weight is about 3,5 kg/m²
isotropic hard ferrite, mixed with flexible plastic (PE) binder, reverse side with permanent adhesive (without release paper), front side is magnetic, adhesive strength 0.12 N/cm², th = 0.35 mm, hand dispenser made from colourless, transparent polysterene, with metal cutting blade
isotropic hard ferrite, mixed with flexible plastic (PE) binder, reverse side with permanent adhesive, front side is magnetic, th = 0.6 mm, 20 x 30 mm, on silicone paper