Epoxy Henkel Emerson & Cuming Catalysts
Electronics Potting & Encapsulation
Selecting the best catalyst
A catalyst determines many of the final properties of a STYCAST system. It's selection is as important as that of the resin as it has a significant influence on final cured hardness, mixed viscosity, temperature capabilities and physical properties.
Understanding viscosity
Viscosity is the measure of the internal resistance of friction when a material moves against itself. It is typically measured using a rotating spindle instrument (viscometer). The amount of force required to turn the spindle (torque) at a selected speed (rpm) is measured. A simple calculation converts this internal resistance to viscosity. Thicker materials equates to higher torque values, hence, higher viscosities.
A catalyst determines many of the final properties of a STYCAST system. It's selection is as important as that of the resin as it has a significant influence on final cured hardness, mixed viscosity, temperature capabilities and physical properties.
Understanding viscosity
Viscosity is the measure of the internal resistance of friction when a material moves against itself. It is typically measured using a rotating spindle instrument (viscometer). The amount of force required to turn the spindle (torque) at a selected speed (rpm) is measured. A simple calculation converts this internal resistance to viscosity. Thicker materials equates to higher torque values, hence, higher viscosities.
Unit of Measure
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/Asset/a1146.jpg 17M-1 Epoxy Henkel Emerson & Cuming Catalysts |
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Cure Temp | N/A Room | N/A Room | N/A Room | N/A Elevated | N/A Elevated | |||||
Mix Ratio | N/A Amber | N/A Amber/Black | N/A Clear to amber | N/A Dark Brown | N/A Tan | |||||
Viscosity at 25 ºC | N/A 80–105 cps | N/A 25000 cps | N/A 20–30 cps | N/A 35–60 cps | N/A Slurry | |||||
Working Life (100 g cP at 25 ºC) | N/A 45 min | N/A 2 h | N/A 1 h | N/A > 4 h | N/A 24 h | |||||
Specific Gravity | N/A 1.00 | N/A 0.97 | N/A 1.01 | N/A 1.10 | N/A 1.40 | |||||
Temperature Range of Use | N/A –40 to 130 ºC | N/A –40 to 90 ºC | N/A –65 to 105 ºC | N/A –55 to 155 ºC | N/A –20 to 230 ºC | |||||
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