Product Categories

System 96 Reactives

Uroboros has created two unique glass formulas for System 96 that are designed to create an interface colour, or a ‘reaction’, when melted against certain other colours. This occurs when ions from the two adjacent glasses migrate and mingle when the glasses become hot and fluid. Given the right glass chemistry, the co-mingled ions form a very thin coloured line, or ‘reaction’. Since Uroboros' formulas react to create a noticeably reddish hue, Uroboros named them Red Reactives, as in Red Reactive Transparent, and Red Reactive Opal.

The primary ingredient needed in a glass to generate a reaction colour with Uroboros' reactive glass is copper. Copper is present in many blue and blue-green glass colours, but in some cases in too low a concentration to create a noticeable reaction. For simplicity, all System 96 colours have been graded for their potential to react into three categories: Strong, Medium, and Mild. These are listed on the chart below.

You will find that the intensity of the reaction colour will get stronger with longer, hotter, or repeat firings. This is because the copper ions have more time to mingle with their friendly reactive partners in the adjacent glass.

The chart rankings are based on a typical single firing cycle. You could get a Medium reaction from a colour graded as Mild by firing it hotter, or firing multiple times.

Transparent Opal

125SF Dark Green Medium None
130.8SF Pale Blue Medium Mild
132 SF Light Blue Medium Mild
136 SF Dark Blue Strong Mild
220-76SF Dark Green Opal Strong Medium
223-72SF Turquoise Green Opal Medium Mild
230-76SF Dark Blue Opal Strong Strong
233-74SF Turquoise Blue Opal Strong Strong
233-75SF Mariner Blue Opal Strong Strong
238-72SF Alpine Blue Opal Strong Medium
60-402-96 Aqua Medium Medium
60-402-96 IRAqua Iridescent Medium Medium
60-421-96 Riviera Blue Opal Strong Medium
523-8SF Hunter Green Mild None
523-2SF Teal Medium None
532-1SF Caribbean Blue Strong Medium
533-1SF Sky Blue Strong Medium
533-3SF Deep Aqua Strong Strong
538-2SF Light Steel Blue Strong Medium
60-726-96 Apple Jade Opal Medium Mild
60-774-96 Ming Green Mild Mild
60-774-96 IR Ming Green Irid Mild Mild
11-25-96 Green Fracture Random Areas Random Areas
11-29-96 Green Fracture Random Areas Random Areas
11-45-98 Green Fracture Random Areas Random Areas
11-51-96 Green Fracture Random Areas Random Areas
13-5333-96 Deep Aqua Exposed Frit/Stringer Exposed Frit/Stringer
OA/233-54SF Cascadia Blue Exposed Swirls None
OA/623-52SF Lagoon Green Exposed Swirls None

Red Reactive Opal 60-045-96 (Handy Sheet 300 mm x 300 mm) Our price: $ 31.35	Red Reactive Transparent 60-003-96 (Handy Sheet 300 mm x 300 Our price: $ 27.90	Red Reactive Transparent Noodles 003-96 - (142g) Tube Our price: $ 19.95	Red Reactive Transparent Stringers 003-96 - (142g) Tube Our price: $ 19.95
Red Reactive Opal Noodles 045-96 - (142g) Tube Our price: $ 19.95	Red Reactive Opal Stringers 045-96 - (142g) Tube Our price: $ 19.95	Red Reactive Transparent Coarse Frit 003-96 - 50 g Our price: $ 4.30	Red Reactive Transparent Fine Frit 003-96 - 50 g Our price: $ 4.30
Red Reactive Transparent Medium Frit 003-96 - 50 g Our price: $ 4.30	Red Reactive Transparent Coarse Frit 003-96 - 100 g Our price: $ 6.90	Red Reactive Transparent Fine Frit 003-96 - 100 g Our price: $ 6.90	Red Reactive Transparent Medium Frit 003-96 - 100 g Our price: $ 6.90
Red Reactive Opal Coarse Frit 045-96 - 50 g Our price: $ 4.30	Red Reactive Opal Fine Frit 045-96 - 50 g Our price: $ 4.30	Red Reactive Opal Medium Frit 045-96 - 50 g Our price: $ 4.30	Red Reactive Opal Coarse Frit 045-96 - 100 g Our price: $ 6.90
Red Reactive Opal Fine Frit 045-96 - 100 g Our price: $ 6.90	Red Reactive Opal Medium Frit 045-96 - 100g Our price: $ 6.90