• House Numbers Measure 6" x 4" x 3/8"
• 100% Ceramic
• The tile achieve their glow effect by combining the photoluminescent pigment and the ceramic and baking them together at an extreme heat
• Tiles have an indefinite life span so the will last for years to come
• Will not fade or deteriate
• Ceramic paint (on house numbers) will not chip, peel, rub or wash off
• Can be grouted in place or check out our custom frames
• House Numbers aide EMS in locating your house or business at night
• Recharges daily via sunlight (even on cloudy days) or by incandescent light
• PEI RATE: House Numbers Class 2 / House Tiles Class 3.7
• MOHS: Both 5.7
• Water Absorption: Both 0.5-3%
• Great for ural areas
• When street lights go out
• Light night pizza deliveries
• Fire departmant or Police can see from the street

PEI: Porcelain Enamel Institute:

To help select suitable tiles for specific applications tiles are rated the P.E.I. (Porcelain Enamel Institute) scale. The tiles are evaluated for wear resistance on a scale from 1 (lowest) to 5 (highest).

Mohs Scale of Mineral Hardness:

In 1812 the Mohs scale of mineral hardness was devised by the German mineralogist Frederich Mohs (1773-1839), who selected the ten minerals because they were common or readily available. The scale is not a linear scale, but somewhat arbitrary. 5 = Apatite 6 = Orthoclase.