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Grog BPI Buff Proof Ink. Maximum Penetration And Buff Resistance.

Grog BPI Buff Proof Ink is a permanent ink, the first product ever released by Grog and the formula that has defined the brand. Unlike paints, this dye-based ink is engineered to penetrate surfaces and resist removal attempts, leaving a long-lasting and Hard to Buff mark.


Buff Proof Ink: History of the World’s Most Infamous Ink

The story of Grog BPI Buff Proof Ink begins in 2005. It was born from the need of a group of Italian writers to create a deep, black, and more permanent ink than what was available on the market, as the original formulas of historic products had been modified to achieve optimal results. From this research came BPI, Grog's very first product. The philosophy has always been clear: to develop and produce specific tools for writing in Italy, with an almost artisanal approach and an obsessive attention to detail, from chemical composition to design. This has made Grog BPI the benchmark for those seeking a high-performance ink for all types of Ink Markers.

Buff-Proof Ink: What It Really Means

The term Buff Proof doesn't mean the ink is impossible to remove with chemical agents, but that it is "paint-over resistant." Thanks to its exceptional staining power, the Grog BPI formula penetrates deeply. When an attempt is made to cover a tag with a new layer of paint, the ink tends to bleed through after a short time, leaving a visible ghost mark. This effect is particularly evident on painted materials, plastics, and metals, where the ink has the opportunity to penetrate. For even more aggressive staining power, the evolution of this formula is the Grog SKI Street Killer Ink.

Grog BPI, how a Dye-Based ink works

Unlike pigmented paints, which deposit solid color particles on the surface, Grog BPI is a dye-based ink. Technically, this means that the color molecules are completely dissolved in the alcohol-based solvent. This chemical composition results in very low viscosity and high fluidity. The main advantage is its penetration capability: the ink doesn't just cover, it gets absorbed deep into porous and semi-porous materials, creating an indelible stain. This is the technical reason why it's considered the best ink for staining and is so difficult to remove.

Refilling Cutter markers with Grog BPI

The low-viscosity formula of Grog BPI Buff Proof Ink makes it a perfect ink marker refill for valve-action markers. In tools like the Grog Cutter 08 BPI, the fluidity of the alcohol based ink is essential to avoid clogging the valve mechanism and to ensure a constant, even flow to the felt tip. This allows for solid and uniform lines, taking full advantage of the precision of chisel-tip markers. The compatibility between the ink formula and the marker's delivery system is fundamental for optimal performance.

Filling Squeezers with Buff Proof Ink

Grog BPI is the quintessential refill ink for Grog Squeezer markers. Its fluid formula and dye-based composition are optimized for the soft body and porous tips of these tools. When the body of a squeezer bpi 10 or a Grog Squeezer 25 BPI is squeezed, the ink flows abundantly, creating the saturated and powerful drips that characterize these tools. The combination of BPI ink and the squeezer design is what has defined an entire aesthetic in the world of tagging. It is the ideal squeezer refill for those looking for controlled yet impactful drips.

The Grog BPI Buff Proof Ink Refill

The Grog BPI refill is available in a 200ml format, contained in a shockproof plastic bottle designed for safe transport. This format is the standard for refilling the entire range of "Fuchsia Label" Grog Markers, ensuring perfect compatibility. In addition to being the benchmark mop refill, the Grog Buff Proof Ink 200 can be used to fill any type of empty marker that works well with a low-viscosity ink. The packaging is designed for maximum convenience and safety for use on the streets.

Grog BPI Buff Proof Ink is Made in Italy

Every bottle of Grog BPI Buff Proof Ink is the result of a manufacturing process that is entirely Italian. From the development of the chemical formula to production and bottling, everything happens in Italy under the direct control of the brand. This approach guarantees an extremely high and consistent quality standard over time. Choosing a Grog marker refill means trusting a product that is not simply labeled, but conceived, tested, and produced by a team with a deep background in the world of writing, translating their needs into high-performance chemical formulas.

What is the difference between pigmented paints and Grog Buff Proof Ink?

Pigmented paints (like Grog FMP) contain solid color particles that sit on top of a surface, covering it. Grog BPI is a dye-based ink: the color molecules are dissolved and penetrate the surface, staining it deeply.

What does 'Buff Proof Ink' mean?

It doesn't mean it's impossible to remove, but that it's resistant to being painted over (buffed). Thanks to its staining power, Grog BPI tends to bleed through the new layer of paint, leaving a visible ghost mark.

Can I mix Grog buff proof ink to obtain new colors?

Yes, you can mix different colors of Grog BPI together, as they share the same alcohol-based chemical foundation. Never mix it with water-based paints or other different chemical bases to avoid adverse reactions.

Is Grog BPI ink alcohol or water-based?

Grog BPI is an alcohol-based ink. This characteristic gives it a quick drying time and high penetration power, making it a permanent and resistant ink.