Starting - Mileage 300m at least - Strike through - Drying time -Reproducibility-Light resistance 15h- Water resistance 1h (without shelf life time), Erasure - Ethanol -Hydro-Chloridric Acid Resistance- Ammonium Hydroxide Resistance- Bleaching Resistance - Water resistance 24h -Light resistance 60h. According to ISO 12757-1, ISO 12757-2.
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