«Booster is the secret Street Killer Ink ingredient, the magic dust that makes the ink more powerful than ever.
8 grams of pure power, Booster gives something extra to your inks: once added to your favourite ink, it gets deep on porous surfaces, making your mark more resistant to buffi and protects from the sun for longer, thanks to anti-UV filters.
If you want the most out of your Booster, let it sit all night before use: the chemical reaction will be even more devastating!
One bag is ideal for 4 bottles of 200 ml product.»

The Grog Ink SKI, known as Street Killer Ink, has the toughest formula in the Grog range:

• Extremely opaque indelible marking, 4 colors.
• Resists the most aggressive solvents.
• Most of the time leaves a «ghost» trace after buffing.
• Instantly drying.
• Fluid and regular flow: the surface to be marked is deeply penetrated.

The Grog SKI is offered here as a Booster. This ultra-concentrated powder bag is a powerful colorant that can be mixed with any alcohol-based ink.