Gravitas – Ultemate Vac Ultem
Introducing the Gravitas Ultemate Vac, a groundbreaking design and Gravitas’ inaugural venture into complex filling systems. This fountain pen redefines durability, incorporating titanium in key areas to ensure longevity, addressing common weaknesses found in other vacuum pens. ULTEM resin is a high performance polyetherimide thermoplastic (PEI) – used in the manufacturing process of circuit boards, sterilisation equipment and most notably in the making of aircraft parts, it offers high strength and stiffness, a broad chemical resistance, making it expensive and used for only high demanding applications.
Despite its robust construction, the fountain pen remains lightweight, featuring a transparent Ultem section that allows for easy monitoring of ink levels in the secondary chamber. Easy to clean and maintain since the whole design is put together using threads and gaskets, different from other vacuum pens assembled using glue.
The 25mm-long section, tapering from 11.9mm to 10.2mm in width, provides a comfortable grip that is well known by fountain pen users – the hour glas shape. The nib is offered in both steel and 14k gold variants, both designed and manufactured by Gravitas. For 14k gold nibs Gravitas offers ebonite feeders and for steel nibs abs plastic feeders.
With a generous capacity exceeding 2.5ml and a secondary chamber holding 0.7ml, the Ultemate Vac offers ample ink for extended writing sessions. The second chamber is equipped with a shut-off valve to prevent ink mishaps, ensuring a mess-free experience. When using the Ultimate Vac it is recommended for the end knob to be unscrewed, thus offering a more constant and wet ink flow.Â
Designed for convenience, this pen can be posted and disassembled for thorough cleaning. A crucial note: when removing the nib or cleaning the pen, apply silicone grease carefully to the threads and barrel inside to maintain water-tight integrity/smooth operating plunger and prevent ink spills. The sleeve presented in the picture with the box of the pen is not available anymore from Gravitas.
Elevate your writing experience with the innovative and resilient Gravitas Ultemate Vac.
Specifications:
– brand:Â Gravitas
– type: Fountain Pen
– color:Â Yellow/Demonstrator
– body material:Â Ultem
– cap type: Screw-cap
– filling mechanism:Â VacuumÂ
– nib material:Â Steel / 14k Gold
– nib size:Â Extra Fine, Fine, Medium, Broad, Double Broad
– postable: Yes
– trim: Silver/Gold color
– length overall (closed):Â 150 mm
– length overall (posted): 160 mm
– body length: 142 mm
– cap length: 65 mm
– body diameter: 15 mm
– cap diameter (without clip): 16 mm
– weight (overall):Â 30 grams
– body weight:Â 25 grams
– cap weight: 5 grams