EDITION OF 150 PENS IN NATURAL ULTEM WHAT IS ULTEM? Ultem is an engineered plastic also known as Polyetherimide (PEI). It is an amorphous plastic that offers high strength, excellent chemical resistance with a high service temperature. It has a distinct amber-to-transparent color. It is commonly used in autoclave appli
EDITION OF 150 PENS IN NATURAL ULTEM WHAT IS ULTEM? Ultem is an engineered plastic also known as Polyetherimide (PEI). It is an amorphous plastic that offers high strength, excellent chemical resistance with a high service temperature. It has a distinct amber-to-transparent color. It is commonly used in autoclave appli