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Markal- Valve Action® Paint Marker Ultra Violet

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The UV-visible Valve Action makes an invisible paint mark that glows bright blue when viewed with a
UV or black light, making it ideal for security, quality control, tamper-proofing, and anti-counterfeiting
processes. The permanent, invisible liquid paint dries quickly to provide long-lasting, weather- and
wear-resistant marks.


Makes clear, invisible marks that illuminate bright blue when viewed with an ultraviolet or black light

Invisible paint formula is ideal for security, theft-prevention, and quality control

Xylene-free paint reduces user health risks and eliminates California Proposition 65, EPA HAPS and SARA 313 concerns in the U.S.A.

Fast drying formula reduces smearing