229m Double Linered Membrane Switch Spacer with 200MP adhesiveon both sides of an opaque polyester film. 50m adhesive on face side and 127m on back side. #58 lay-flat polycoated kraft paper liners on each side. Both liners are printed. Ideal for circuit separation in switches until actuation. Easy to die-cut and process. Use for steel rule die-cutting. Used for graphic attachment. Provides outstanding adhesion to metal and high surface energy plastics. 3M performance standard, moisture stability and economical edge burr during hard tool die cutting Metallized vapor coat and white color provide strong opacity for facilitating backlighting and eliminating floodcoats Suggested Applications Use for graphic attachment and general industrial joining applications Ideal for circuit separation in switches until actuation