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🔵 Illuminate your world with invisible brilliance!
Blue UV Reactive Blacklight Paint by GLO Effex delivers a clear, intense blue glow under 365nm UV light. Its lacquer-based formula offers durable adhesion on virtually any surface, ideal for commercial marking or creative projects. Dries clear with a glossy finish and can be thinned for airbrush or spray applications, covering approximately 10-15 square feet per ounce.






| ASIN | B00BD4UZ9I |
| Age Range Description | Adult |
| Best Sellers Rank | #48,866 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #1,067 in Art Paints |
| Brand Name | GLO Effex |
| Color | Blue |
| Color Code | Green |
| Container Type | Bottle |
| Coverage | Approximately 10-15 square feet for a single coat (estimated) |
| Customer Reviews | 3.7 3.7 out of 5 stars (182) |
| Dry Time In Hours | 24 |
| Finish Type | Gloss |
| Full Cure Time | 24 Hours |
| Indoor Outdoor Usage | Indoor |
| Is Waterproof | False |
| Item Form | Liquid |
| Item Volume | 1 Fluid Ounces |
| Item Weight | 4 Ounces |
| Manufacturer | GLO Effex |
| Paint Type | Lacquer-based |
| Part Number | TPO-BL-1OZ |
| Size | 1 Fl Oz (Pack of 1) |
| Special Features | Glow |
| Specific Uses For Product | Interior |
| Surface Recommendation | Multiple Surfaces |
| UPC | 025706634953 025706635097 |
| Unit Count | 1 Fluid Ounces |
| Water Resistance Level | Not Water Resistant |
M**D
Great color and consistency
Finally got to the point on my painting that I bought this for, and I was very pleased at what I found. I love that shade of blue on a black canvas, and it was easy to control the amount on the brush and it seemed to last a long time before reloading the brush. Great product.
P**O
Follow instructions and use a 365 blacklight bulb.
*Updated 7/29/25 - Make sure you have the correct 365 blacklight as referenced by the manufacturer. THEN it looks just like the picture. It does what it says it would, but it is very, very pink. Nowhere close to the red in the product picture. I bought the green and the blue as well, for some reason one of those was opaque white instead of clear. It’s alright, but that’s all. It’s a little bit expensive to feel just alright about the purchase. *Update 6/28/2025 - Important to make sure you have a light source that really does have the 365 wavelength. It makes a tremendous difference.
A**.
Not worth the purchase.
This was a waste of time and money. It did nothing. We tried it on several different occasions, products and nothing worked. Don’t recommend this purchase.
D**.
It works well!
This stuff is good, the color is more orange than it is red, but the glow is there and it's invisible as described. Just be aware that this is a lacquer based paint and not acrylic so you need some thinners for cleanup and flow improvement. But, it can be painted over if you miss, just make sure you have a blacklight/UV light handy to check your work. I'd give it 5 stars, but it came in an unpadded envelope so there is a lot of potential to spill in transit.
M**T
It works!
I was honestly a bit skeptical of this product before I bought it. But I knew I could find a million uses for it if worked as advertised. So I decided to give it a chance, and I'm happy to report that it really does work. Looks cloudy and yellowish in the bottle under normal light, but glows a nice neutral red under blacklight. It's very thick, which is great because you can thin it (I'm thinking this is lacquer based) and make a few large batches which will last a pretty long time. I've not tried airbrushing with it yet, but I imagine it'll work as long as you thin it enough. All in all, if you're curious about this, get a bottle and try it out. I'm pretty sure you'll be satisfied with it.
V**E
Invisible ink product
The blue and red colors are transparent, vibrant, and easy to use without mixing. However, the green one is not as clear, and I’ve found that I need to dilute & mix it the particles to make them work.
N**H
Red
It’s more pink than red. Showed up in a damaged container and had leaked out all inside the packaging
K**S
Very bright!
I use these to paint me fishing lures and weighted hooks so the fish can see them easier. I also have a UV light to test it. Wow. Very very bright and have already upped my fish count due to these.
D**T
Good product, as expected.
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