• Avoid using investment that has just been delivered to the laboratory Again,
give the investment time to acquire the right temperature
• If space allows, stock up on investment (especially LIQUID) before the cold
winter months arrive This way, you forego the risk of exposing the liquid to
frost during delivery
4 Production of duplicating models
4.1 Mixing of the investment compound
Premix the powder and liquid by hand with a spatula in the clean, freshly
rinsed cup of the Multivac
stand under vacuum for a short time Subsequently mix under vacuum for
approx 60 sec
4.2 Pouring the duplicating mould
Mix the investment compound flow into the duplicating mould under slight
vibration and carefully avoid the formation of bubbles After the duplicating
mould is filled, immediately switch off the vibrator
Note: Silicone duplicating mould can be poured easier if they have been
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GA_Biosint Extra_50571813g_1014.indd 14
evacuating unit Then let the investment compound
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wetted previously with Waxit
pouring with investment compound
Investment compound models which have to be produced in silicone
duplicating moulds must be mixed with higher concentration of Biosol
E; they require greater expansion
The mould must be blown dry before
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