Components
Inferior pen refills have tips made from brass, which is often nickel plated to prevent tarnishing and improve its looks. Brass is a relatively soft material that is easily worked in mass production. However, it’s susceptible to corrosion from the ink ingredients, and because of its softness it is also prone to wear from the ever revolving ball whilst in use. These two factors can ultimately lead to either a seized ball, or the ball becoming too high in the tip, resulting in leakage, blotting and an increased ink flow, meaning a shorter writing life.
To prevent this from happening, all our pen refills have super smooth, channelled tungsten carbide, abrasion-proof balls for smooth, non-skip writing performance. Our tips are all made from stainless steel, which is a much more hard wearing metal than brass in all respects. It’s more resistant to corrosion and to wear, and as a result, the condition of our refills is just as good at the end of their life as it is at the start.
International Standards
Because our pen refills are of the highest quality, it goes without saying that they comply with all the requirements of the International Standards Organisation (ISO) relevant to ballpoint, gel and rollerball pens
They cover, amongst other things, writing quality, paper absorption, bleeding, legibility, shelf life, and resistance to a wide range of perils such as water, light, smearing, erasing, tropical conditions and chemical attack including from bleach & acid.
