Cologne Sanskrit project. Hindi-English. This is VERSION 4.2 of a hypertext Sanskrit dictionary English-Sanskrit and Sanskrit-English for spoken Sanskrit. Which means that it is designed to contain the mostly used common words necessary for daily communication.
Spray Foam is categorized into two types, open-cell or closed-cell. Open cell is lightweight foam that is flexible, and an excellent air barrier. Open cell foams most commonly range from .5 lb to .7lb densities. Closed cell foam is higher density foam, and a moisture barrier.
It is generally categorized by the type of cell, or particles, of the foam; the density of the foam; and the way it is applied. 1  Open-cell or closed-cell: First, spray polyurethane foam can be open- or closed-cell. 2  High-, medium- or low-density: Second, spray polyurethane foam is described by its density.