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ZA RTV 30-60 (0,5 kg+0,5kg)
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30 Shore A of white is a bicomponent (base and catalyst) addition RTV 2 silicon rubber that vulcanizes at room temperature. Indicated for the duplication of models with small recesses.
Mould-making, model-making, concrete moulding and art ceramic for its remarkable reproduction accuracy, high dimensional stability and high mechanical strength.
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Chemical and Physical Properties
Vulcanized product
Mixing ratio 1 : 1
Viscosity of pre-catalyzation mixture 5000 - 7000 cP
Density of the Base component (g/cc) 1,13
Density of the Catalyst component (g/cc) 1,14
Working time at 23 °C (73 °F) WT= 70-90’
Setting time at 23 °C (73 °F) ST= 6/8 hours
Shore A hardness after 24 hours 30 ± 2 shA
Breaking load 5.5 ± 0.2 N/mm2
Elongation at break 500 ± 30 %
Tear strength >18 ± 1 N/mm
Reproduction of details 2 micron
Dimensional variation after 24 hours -0.05 %
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Weight 1 kg/pcs