Carbon fiber reinforced polymer as epoxy, but other thermoset or thermoplastic polymers, such as polyester, vinyl ester, or nylon, are sometimes used. The composite material may contain aramid (e.g. Kevlar, Twaron), ultra-high-molecular-weight polyethylene (UHMWPE), aluminium, or glass fibers in addition to carbon fibers. The properties of the final CFRP product can also be affected by the type of additives introduced to the binding matrix (resin). The most common additive is silica, but other additives such as rubber and carbon nanotubes can be used. The material is also referred to as "graphite-reinforced polymer" or "graphite fiber-reinforced polymer" ("GFRP" is less common, as it clashes with
Living in the Material World century, Harrison's "Living in the Material World" was "neglected over the years", author Bruce Spizer wrote in 2005, an "unfortunate" situation considering the quality of its songs. On 25 September 2006, EMI reissued the album in the UK, on CD and in a deluxe CD/DVD package, with Capitol Records' US release following the next day.<ref name="Menze/BB">Jill Menze, "Billboard Bits: George Harrison, Family Values, Antony", billboard.com, 21 June 2006 (retrieved 26 November 2014).</ref> The remastered "Material World" featured two additional tracks, neither of which had previously been available on an album: "Deep Blue" and "Miss O'Dell", popular B-sides, respectively, to the