MACPHERSON GLASS 3/8 Laminated Infrared Reflecting IRR – Safety Glass is heat reflecting with
stay in place break – 3/8″ thick (suitable for over 50 feet away from molten metal)

MACPHERSON GLASS Brand Tempered IRR – Safety Plate Glass is heat reflecting, tempered for strength
and “safe break” – 1/4′ thick (suitable for over 50 feet away from molten metal)
MACPHERSON GLASS Brand BPS® Borosilicate Tempered Heat Shield Glass is heat resisting, heat reflecting,
thermal shock resisting, and tempered for impact strength – (suggested for under 50 feet away from molten metal)
MACPHERSON GLASS Brand 101® Plate Heat Shield – is infrared reflecting crystalized glass with
900° Fahrenheit  temperature limit over previously available heat shield glass. (suggested for under 20 feet away)

Tempered IRR (Infrared Reflecting) Glass

Soda Lime glass is the most commonly used glass in the world therefore the lowest cost because of its availability. The Annealed Soda Lime Glass will start to break & fracture at a lower temperature than the Tempered Glass. Annealed laminated soda lime glass is commonly used as safety glass because it can be cut in the same day needed. Tempered Glass is a safety glass because it breaks in a dice pattern. But once tempered, the Tempered cannot be cut again. Therefore, you decide, what is more important; ability to replace glass quickly or not as often.
Tempered Glass fractures at a higher temperature than Annealed Glass. InfraRed Reflecting (IRR) Glass starts to fracture at a much higher temperature than just Tempered Glass. Tempered IRR Glass is best product for applications 50 feet away from the molten metal.

BPS Heat Shield Glass

BPS (Borosilicate glass) is best for the molten metal applications because of the unique properties of low thermal expansion, high mechanical strength and high chemical durability.
BPS cannot safety break. Molten splatter can be scraped off the glass.
BPS is the best product for less than 50 feet from molten steel and no workers are below

101 Heat Shield IRR Glass

101(Ceramics) Glass has very limited use in the hot metal industries. When BPS cannot take the thermal shock, 101 Glass out performs. This glass is your fireplace glass that takes the flames, turns black and rarely fracture. 101 does not safety break. This is not a safety glass. This is the best Heat Shield for under 20 feet from molten steel.

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