Products Details

ZA 50 LT (50 ShA)


ZA 50 LT is a bi-component addition cured RTV silicone rubber which vulcanizes at room temperature. Compatible with all plasters, coatings, polyurethane resins and acrylic resins.

Main application sectors

  • Mouldmaking and model-making due to its considerable precision in reproduction, high dimensional stability and high mechanical resistance
  • Ceramic serigraphy due to its considerable precision in reproduction, high mechanical resistance and the excellent laser cutting characteristic
  • Artistic ceramics
  • Jewellery making

Properties

  • High chemical resistance to the aggressive components of some types of resin
  • High resistance to laceration (this characteristic guarantees high resistance to wear and tear)
  • High level of accuracy in reproducing very small particulars
  • High dimensional stability over time and non-deformability
  • Considerable resistance to high temperatures and to ageing
  • Excellent non-stick effect

Chemical and physical characteristics

  Metric system USA system
Mixing ratio 1 : 1 -
Viscosity of the mix pre-catalisation
 20000 cP -
Density at 23°C 1.22 g/cm³ -
Working time at 23 °C (73 °F) 15’ - 20’ -
Setting time at 23 °C (73 °F) 3 h -
Hardness Shore-A after 24 hours 50 ± 3 ShA -
Tensile strenght
 4.0  N/mm² 581 ± 29 psi
Elongation at break
 320% -
Tear resistance (Die B)    8 ± 1 N/mm 45 ± 6 ppi
Tear resistance (Die C) 12 ± 1 N/mm 68 ± 6 ppi
Reproduction of details 2 μm -
Dimensional variation after 24 h -0.05% -
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Tel. +39 0425 597611 - Fax. +39 0425 53596 - Email web@zhermack.com 
P.IVA 00594630295 - C.F. P.IVA IT00594630295 - R.E.A. 86603 - R.I. RO 00594630295 - M. RO 001381Isc. Reg. A.E.E. IT07111000002 - Cap. Soc. €1.032.000,00

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