Blacklight Security (46)

These UV blacklight reactive invisible ultraviolet markers by DirectGlow use our specially formulated high quality water based invisible ink blend for the best blacklight effects! Perfect for secret messages, marking merchandise, and other stealthy security uses. Colors glow an incredibly bright in blacklight. The ink adheres to any porous surface with ease and dries fast. Virtually invisible and won't wash off easily like other brands. Fine tip allows for precision application. Marker comes ready to use and is formulated to fluoresce brightly under long wave ultraviolet or LED blacklight. Ink is non-toxic, fast-drying and non-transferable. Ideal for applying onto an already printed surface. Ink safe for general use on the hands and skin. Avoid sensitive areas like eyes and mouth. Marker is non refillable.

Our Opticz brand UV blacklight reactive invisible ink markers use high quality invisible water based ink for outstanding blacklight effects. Perfect for identification marking, body art, and other stealthy security uses. Safe for skin too! Perfect for metal, glass, plastics, paper. Totally invisible, won't wash off easily, and is only visible under blacklight. These are the markers you want for for invisible, "only visible in blacklight" marking. These markers can be used for: Glow parties, event tickets, industrial coding, security printing, coupons, raffle tickets, inventory control, advertising, and more! Can also be used on: Aluminum, ABS, Acrylic, Rubber, Cellulose, Acetate, Formica, Nylon, Polystyrene, and Polyethylene. Fine tip for precision application. Ink is non-toxic, fast-drying and non-transferable. Avoid sensitive area like eyes and mouth. Marker is non refillable.

These compact sized UV blacklight reactive invisible ink markers by DirectGlow use high quality semi-permanent invisible ultraviolet ink. Each marker comes with a colored keychain blacklight that matches the color of the ink inside. Your choice of blazing bright blue, red, or yellow.  Angled chisel tip nib allows for wide marking or fine point application. Works best on textured surfaces like thick paper, fabric, wood, plastics, rubber, and metal. Skin safe as well. Avoid sensitive areas like eyes and mouth. Allow around 1 minute drying time for full adhesion. Ink is fast drying, nontoxic and non transferrable.  These markers contain security grade ink. it is not washable and cannot be simply wiped off, making them ideal for security marking and covert identification methods. Use them for things such as document marking, admissions control, authentic returns verification, secret messages and more! Also ideal for recreational uses like glow parties, birthdays, holidays, raffle tickets, promotional events, or anywhere discreet ultraviolet marking is desired. Key Features: Ink is invisible in normal light and glows in blacklight Each marker comes with a color matching UV keychain light Fast drying, nontoxic, and non-transferrable Skin safe when used as directed Marker Size- 3.5" x 0.25"  

Our Opticz UV blacklight reactive invisible ink markers are made with a specially blended high quality water based ink for outstanding blacklight effects. Perfect for identification marking, body art, and other stealthy security uses. Goes on invisible in normal light and glows brightly in UV blacklight. These markers have a large body and large rounded tip. Great for shading in large areas while also capable fine point application. The XL version has 2x the amount of ink inside than our standard fine point markers adding value and longevity. Security grade ink is designed to stick and be very difficult to remove. Does not simply wash off. Ink adheres and works best on textured surfaces. Safe for external use on skin. Avoid application sensitive areas like eyes and mouth.  These unique markers can be used for glow parties, secret messages, escape rooms, event tickets marking, industrial coding, security printing, coupons, raffle tickets, inventory control, advertising, and more! Requires ultraviolet blacklight. They do not glow in the dark on their own.  Key Features: Invisible in normal light; glows in UV blacklight Skin safe when used as directed XL size has 2x the ink than standard size with a large round point tip Designed for security purposes as well as recreational functions Measures 5" long and 1/2" diameter 

Our DirectGlow brand ultraviolet reactive invisible ink markers use our premium water based formula for outstanding UV glow effects. Ideal for secret messages, glow parties, escape rooms, birthdays and other fun recreational activities. Also well suited for serious security measures like admissions, returns verification, theft identification, merchandise/warehouse operations and more. These markers have a large body and wide tip. Great for marking larger areas where a more noticeable mark is needed. They also have twice the amount of ink inside for longer lasting use. Totally invisible, won't wash off easily, and is only visible under blacklight. These are the markers you want for for invisible, "only visible in blacklight" marking. Please note blacklight is required. They do not glow in the dark by themselves. Can also be used on: Aluminum, ABS, Acrylic, Rubber, Cellulose, Acetate, Formica, Nylon, Polystyrene, and Polyethylene. Fine tip for precision application. Ink is non-toxic, fast-drying and non-transferable. Avoid sensitive area like eyes and mouth. Marker is non refillable.

Featuring 3 blazing bright colors, this handy large tip invisible UV ink marker by DirectGlow provides everything you need in one convenient package. Each detachable section features our most popular invisible ink colors of blue, red, and yellow. This ultraviolet pen is filled with our high quality water based invisible ink blend. Goes on invisible and undetectable, yet shows bright fluorescent colors once exposed to blacklight. Perfect for recreational uses like secret messages, glow parties, UV body art, escape rooms, ultraviolet room decor, grab bags, birthday parties or general special blacklight effects. Also useful for serious applications such as marking merchandise for returns verification, admissions, catch a thief, label your belongings, counterfeit detection, and other stealthy security uses. Works on metal, glass, plastics and paper. Can also be used on aluminum, ABS, acrylic, rubber, cellulose, acetate, formica, and all fabric types. Water resistant formula does not remove easily and will perform best on a porous type surface where the ink can be fully absorbed. Allow at least 1 minute to fully dry on smooth surfaces. Large size nibs on each color facilitate covering larger areas with minimum passes. Marker comes ready to use and is formulated to fluoresce brightly under long wave ultraviolet or LED blacklight. Ink is non-toxic, fast-drying and non-transferable. Ideal for applying to an already printed surface. Whether adding the perfect finishing touch to your next glow party, or implementing essential security protocols to your business, this fun unique marker by DirectGlow can do both! Please note, blacklight is required to see the ink colors. The marker does NOT glow in the dark by itself.

Our extra large Opticz Jumbo Blacklight Markers are filled with our our signature blend invisible UV ink that is undetectable to the eye under normal conditions but glows brightly under black light. Available in 3 ultra bright colors: blue, red, or yellow. Use them for secret spy messages, admissions, escape rooms, glow parties or for security. Safe for skin when used as directed. Enjoy making unique and fun designs that will really glow under any ultraviolet light. Also great for security purpose such as identifying your belongings or authentic returns verifications! Please note markers only illuminate in black light; they do not glow in the dark. Please also note this is security grade ink and it does not wash off easily.  This creative writing utensil has a felt chiseled tip allowing for thicker, more pronounced stroke application such as highlighting. Or use the pointed end of the tip for a more delicate and precise stroke for finer details like writing or coloring within borders. Extra Large marker body houses 2.5 times more ink than our standard-sized marker for increased longevity and value. 

Our Opticz brand UV blacklight reactive invisible ink markers use high quality invisible water based ink for amazing blacklight effects. Designed for identification marking, body art, and other stealthy security uses. This set includes all 3 invisible UV colors plus one UV key chain light. Perfect for metal, glass, plastics, paper. Totally invisible, won't wash off easily, and is only visible under ultraviolet light. These are the markers you want for for invisible, "only visible in blacklight" marking. These markers can be used for: Glow parties, event tickets, industrial coding, security printing, coupons, raffle tickets, inventory control, advertising, and more! Can also be used on: Aluminum, ABS, Acrylic, Rubber, Cellulose, Acetate, Formica, Nylon, Polystyrene, and Polyethylene. Fine tip for precision application. Ink is non-toxic, fast-drying and non-transferable. Skin safe. Avoid sensitive area like eyes and mouth. Marker is non refillable.

These UV ink markers by DirectGlow are completely invisible in normal light, and illuminate incredibly bright when illuminated in UV blacklight! These versatile specialty markers can be used for a variety of applications well suited for businesses small or large along with countless possibilities aligned with the casual recreational user as well! Our specially formulated ink mixture goes on smooth and dries fast. Skin safe and will not wash off easily like other brands making them ideal for security applications such as admissions, secret messages, identifying belongings, or catching a thief! They can also be used for casual purposes like grab bags, promotional events, escape rooms, birthdays, holidays, glow parties, drawing art, body art and so much more! Precision felt tips allow for detailed application. Each marker measures about 6 inches in length and is non refillable. Works best on an off white surface like poster board or heavy weight sketch paper. Be aware that common printer paper often has optical brightener agents which causes the paper itself to glow in blacklight. This can lessen the effectiveness of the markers in some cases.  Each set includes 4 blue, 4 red, and 4 yellow invisible UV markers and 4 DirectGlow ultraviolet key chain lights that illuminate the ink. Please note, blacklight is required. They do not glow in the dark by themselves without the use of a blacklight.

This invisible UV blue ink marker by DirectGlow is completely invisible in normal light and glows incredibly bright in UV blacklight. Write a secret message, mark your valuables or have a blast at the next glow party! You get one full sized blue marker and one DirectGlow Logoed UV keychain light.  Marker has a fine tip for precision application. The DirectGlow logo on our markers ensure you are getting a genuine product that is built and tested to meet our rigorous quality standards. Our non toxic ink adheres to any porous surface with ease and dries fast. Very tough to remove unlike other brands making them ideal for security, verification and admissions. Mark the skin or your valuables for quick easy identification in blacklight. The ink glows like crazy and makes quick spot checks a breeze! Our markers are often used for blacklight events, glow parties, UV decor, birthdays, escape rooms, scavenger hunts, admissions, authentic return verification, and so much more! If you need invisible marking that only shows in UV blacklight, these are the markers for you!

This high quality Opticz invisible UV marker has a solid metal body with snap on cap. Made to be strong and durable, it's filled with 15ml of our special blend invisible UV ink. All purpose Opticz invisible UV blacklight reactive inks are ideal for glow parties, hand stamping, documents tags, marking valuables, admissions, and other unique security applications. Will not wash off easily like other brands. Invisible in normal light and glows bright blue under blacklight. Completely safe for skin and body when used as directed. Alcohol based for quick drying. Perfect for secret messages, marking merchandise, and other stealthy security uses. Glows an incredible bright blue in blacklight. Ideal for metal, glass, plastics or paper. Can also be used on aluminum, ABS, acrylic, rubber, cellulose, acetate, formica, nylon, polystyrene and polyethylene. Totally invisible and won't wash off easily. Ink is non-toxic when used as directed, fast-drying and non-transferable. Ideal for applying onto an already printed surface.

This high quality Opticz invisible UV marker has a solid metal body with snap on cap. Made to be strong and durable, it's filled with 15ml of our special blend invisible UV ink. This is that hard to find UV Blacklight Reactive Invisible Ink for box marking, document marking, and other unique security applications. Ink is water proof and very difficult to remove. Best viewed in dark or shaded area. Opticz Blacklight Reactive Invisible Printing Inks are suitable for paper marking as well as non-pourous material marking. This ink is invisible/colorless and will glow bright blue under UV blacklight. This ink should NOT be used for readmission (e.g. on skin use). Industrial application only. Can be used on: aluminum, cardboard, ABS, acrylic, rubber, cellulose, acetate, formica, nylon, polystyrene, Polyethylene and most other materials and porous surfaces. Each high quality solid aluminum marker is filled with 15ml of our special blend UV ink. Ink is alcohol solvent based so a little goes a very long way! Ink is formulated to fluoresce brightly under long wave ultraviolet light only. They do NOT glow in the dark! Fast drying and non-transferable. Ideal for applying onto an already printed surface. Avoid eye contact and excessive inhalation. Do not ingest. KEEP OUT OF THE REACH OF CHILDREN.

Our Opticz brand invisible UV ink has been a trusted go to source from every day casual users to large corporations for 12+ years! Manufactured and distributed by DirectGlow exclusively, you will be hard pressed to find a comparable ink that outperforms our brand in quality or cost. All purpose Opticz invisible UV blacklight reactive inks are ideal for glow parties, hand stamping, documents tags, marking valuables, admissions, and other unique security applications. Will not wash off easily like other brands. Invisible in normal light and glows bright blue under blacklight. Completely safe for skin and body when used as directed. Alcohol based for quick drying.  Perfect for secret messages, marking merchandise, and other stealthy security uses. Ideal for metal, glass, plastics or paper. Can also be used on aluminum, ABS, acrylic, rubber, cellulose, acetate, formica, nylon, polystyrene and polyethylene.  Ink is non-toxic, fast-drying and non-transferable. Ideal for applying onto an already printed surface. This ink is NOT designed or safe to use for printers or tattooing! External skin application only! Keep out of reach out children.  Available in 2oz, 4oz, 8oz, 16oz and 32oz and 64oz sizes.