CORE Glow Technical Specifications

Specifications (Commercial Grade Marble (Natural Stones))

Click here for MSDS
Recommended safety gear: none required

Material	Strontium Aluminate, Europium Doped
Colour	Standard: White (Blue), Green, & Aqua
Size	Commercial Grade: Small: 1-3 mm Medium: 3-58 mm Large: 8-15 mm
Weight	Variable
Shapes	Chips: random
Chemical Resistance	Excellent
UV Resistance	Excellent
Water Resistance	Excellent, can be used in outdoor and indoor applications
Luminescence Duration	Over 10 hours with 2 hours of daylight
Luminescence Life	Over 20 years

Specifications (Plastic Glowing Pebbles)

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Recommended safety gear: none required

Material	Synthetic resin (PS, PP, etc.) and luminescent
Colour	Standard: White (blue), Blue, & Light Green Custom colours available
Size	Medium: 25mm x 15mm x 10mm Large: 50mm x 40mm x 15mm
Weight	Medium: 5g Large: 15g
Shapes	Minimum 3 random shapes for large and 5 for medium
Chemical Resistance	Excellent
UV Resistance	Excellent
Water Resistance	Excellent, can be used in underwater applications
Luminescence Duration	Over 10 hours with 2 hours of daylight
Luminescence Life	Over 20 years

Specifications (Glow Powder)

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Click here for Instructions for using CORE Glow Powder
Recommended safety gear: gloves, respirator mask, goggles. Do not inhale or consume.

Material	Luminescent Powder
Colour	Standard: White (blue), Green, & Aqua
Size	Fine Powder
Weight	Variable
Shapes	N/A
Chemical Resistance	Avoid contact with acids
Oil/Alcohol Resistance	Excellent
UV Resistance	Excellent
Water Resistance	N/A
Luminescence Duration	Over 10 hours with 2 hours of daylight
Luminescence Life	Over 20 years

Specifications (Glowing Glass)

Click here for MSDS
Recommended safety gear: none required

Material	Recycled glass and luminescent
Colour	Standard: Blue, & Light Green
Size	Chips (raw): Tumbled (round): Small: 1-3 mm n/a Medium: 3-5 mm 3-5 mm Large: 8-10 mm 6-10 mm
Weight	Variable
Shapes	Chips: random Tumbled: smooth random
Chemical Resistance	Excellent
UV Resistance	Excellent
Water Resistance	Excellent, can be used in underwater applications
Luminescence Duration	Over 10 hours with 2 hours of daylight
Luminescence Life	Over 20 years

CORE Glow FAQs

What kind of light works best to charge the glow pebbles?	Sunlight! But, if that is at a minimum, then various artificial lights work just great as well, i.e. black light, fluorescent and incandescent lighting
How long should I charge the pebbles?	For a full nighttime glow, a minimum of 10 minutes is needed to give a full charge (light source dependent). Allowing the pebbles to glow between 10-12 hours long (in the dark of course!)
Is the glow from the pebbles the same as from solar powered garden lights?	No. CORE glow lighting is considered ambient light. They will light your way in dark conditions but don’t compete with regular lighted conditions (your eye compensates for the ‘brighter’ object). That said, CORE glow doesn’t ruin your night vision. It also lasts a lot longer than most solar garden lights: 20 years!
What makes them glow?	A chemical element called Strontium Aluminate. An activator, Europium, is added to make the Strontium Aluminate a photophosphorescence (glow).
Is it safe?	It is both biologically and chemically inert, so safe for home use.
Other Interesting bits of Info	Previous ‘glow in the dark’ products where made with zinc suphide, which are only useful for 35-45 minutes. Strontium aluminate afterglow can be visible for several days or more! You can even read by the initial glow of our products (for the 1st minute or so anyway).
What is the best way to view CORE glow?	If your CORE glow stones have a new charge, then you can easily see them when going from a lit room into a dark room. BUT, the afterglow is best seen with eyes that are fully dark-adapted. Check out the CORE glow at 3 a.m.!