IBM Selectric typewriters have a lot of unique parts that can be tricky to source, but one we didn’t think of was the clear acrylic(?) dust covers, that are apparently very hard to find in ...

Abstract: In this article, multifunctional epoxy-based additives of p-aminophenol triglycidyl ether (TGAP) and N,N,N’,N’-tetraglycidyl-4,4’-diaminodiphenylmethane (TGDDM), with high heat resistance, ...

A wave of peer-reviewed research now shows that resins derived from plants and wood can match or exceed the mechanical ...