A very common item found in homes, workshops and offices, masking tape is another variety of pressure sensitive adhesive designed primarily for masking off areas of a wall, window, door or anywhere else that should not be painted, hence its name. While that is the technical use for the product, many alternative uses can be found including hanging posters and other lightweight materials, craft making and light, temporary structural repair.
Masking Tape Properties
Masking tape is incredibly easy to tear, almost like paper. However, it is available in a number of different strengths rated according to the adhesive backing. The scale is from 1 to 100 with 50-rated tape being the most general. Masking tape used in homes is of a lesser quality than professional-grade painter's tape. When used for painting, its adhesive quality fully blocks the paint from bleeding underneath its edge, leading to very straight lines.
Other Tape Ratings
Another way masking tape is rated is according to the time it may be left in place without leaving behind sticky residue. Masking tape thus comes in 6 different ratings from 1 to 60 days. The most common types used are the 7- to 14-day varieties. Household masking tape is typically tan in color, while professional masking tape is often blue.