Thomas Reid had rightly said, "There is no impediment to the advancement of knowledge than the ambiguity of words". Words pave the way for the modernization of the current era other than the backer rod. Yes, other than words, backer rod is one such material on Earth right now which is being considered a marvel of modern day construction engineering.
Backer Rod, or Backup Rod to be precise, is a flexible foam product which is used to increase elasticity during the process of caulking. It comes in various shapes and sizes. For example, round or rope like and sometimes specially shaped in a rectangular way. D-shaped backer rods are also available. These Rods can be further classified into two, open-cell and closed cell types. The open cell type is porous while the latter is impermeable.
The most significant part of the whole process is the hour glass shape as well as the thickness of the sealant. The hour glass facilitates the adhesive strength to the object. Ordinary open cell-foam can bear temperatures of about 160 Degrees Fahrenheit but the bearable temperature is directly proportional to the quality of the foam. It has been stated that sealing unwanted leaks around homes reduces home energy costs as well as reduces our Carbon footprints. It also saves time, money and hassle by preventing some wallet-emptying repairs. For a developing country like India, it is one of the best materials to befriend with in order to stay economical and caring towards the planet and your own home.