Pro-HT Platinum

The extreme melting point of Platinum of up to 2000°C requires a specially formulated Investment Powder to cope with the intense casting conditions. Pro-HT Platinum is a water-based Phosphate-bonded Investment Powder, which has been successfully used for the casting of Platinum alloy for many years.

Traditional Platinum casting investments use a 2-part acid-bonded chemical reaction to attain mould strength at an elevated temperature, whereas Pro-HT Platinum utilises a water-based, phosphate-bonded chemical system and sets in an exothermic reaction at room temperature.

The mixing process is similar to a plaster-bonded investment such as Omega, where the powder is added to the water in a mixing bowl, mixed for the correct length of time, vacuumed in the bowl and then poured into the flask, vacuuming once again.

After investing, the mould is allowed to bench-set for two hours, by which time it has set and the rubber base can be removed and the mould placed into the furnace.

• Waxes and Resins should be stored at the correct temperature as suggested by the supplier.
• After production, resin patterns should be cleaned and allowed to dry before being stored in an airtight container with a silicon absorption pad.
• The patterns should then be placed into a sealed container with a silicon gel bag.
• Patterns must not be taken out of the sealed container or excessively handled until ready for spruing.

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