Its 20.17 to find it you can look on your periodic table and look for neon which is Ne and if you look at the bottom or at the key it should show you were atomic mass would be â¦ found. Most of the time its found on the bottom under the name.
High Resilience foam, or HR foam, is open-cell, flexible polyurethane foam that has a less uniform (more random) cell structure that helps add support, comfort, and resilience or bounce.hile HR foams are a significantly smaller part of what Bergad offers, we do offer foams in a wide range of physical characteristics, with: 1  Densities from 2 to over 30 pounds per cubic foot, 2  Firmnesses (25% IFD) from 15 to over 300 pounds,
Demilec Sealection 500 open-cell, spray-applied, semi-rigid polyurethane foam is fully water-blown and delivers an R-value of 3.81 per inch. The companys premium product, Agribalance, is a water-blown open-cell foam that contains more than 10% renewable agricultural-based materials and delivers R-4.45 per inch.nlike open-cell foam, closed-cell foam rarely requires any trimming, with little or no jobsite waste. Closed-cellâs obvious advantages compensate for its slightly higher price tag (20% to 30% for the same thickness). It provides both a vapor and an air barrier, and offers an aged R-value of a whopping 6.5 per inch.