Keep strips flat, dry, clean, and protected in their original packaging. Label each box with strip family, width, length, colour, and compatible machine so medium LX supplies are not mixed with standard Composition, Super, CP, or Perfectback strips. Avoid heat, moisture, dust, bending, and pressure that could affect the folded shape or adhesive area. Use older stock first when it has been stored correctly, and retain the item information from successful jobs. If a strip looks damaged, contaminated, or distorted, do not place it into the machine. Simple stock records help maintain consistent colours and prevent urgent orders caused by unopened boxes being mistaken for another Fastback strip type.