代做HLTDET001 Construct models代写C/C++编程
HLTDET001 Construct models
GYPSUM PLASTER X
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Manufacturer Usage Instructions
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Colour
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Blue
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Mixing Time
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35- 45 seconds
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Working Time
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5-6 minutes
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Initial Setting Time
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9-11 minutes
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Final Setting Time
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45-60 minutes
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Water ratio
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40 ml water/100g Gypsum Plaster X powder
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Mixing instructions
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• Mix 40ml of water per 100g of Gypsum Plaster X powder in a clean bowl
• Stir the mixture using the provided spatula for 15-20 seconds to combine the materials
• Using a rapid mixing action, stir the mixture for an additional 20-25 seconds to ensure a consistent mix
• Inspect the mixture for any air bubbles
• Flatten any air bubbles using the provided spatula
• Inspect the mixture before pouring to ensure the mixture is consistent and appears thick and creamy
• Place the bowl containing the mix on a vibrator and run the vibrator for at least 30 seconds
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Pouring instructions
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First Stage Pour:
• Place the impression on the vibrator. Then, starting at one corner, deliver a small amount of the plaster into the molar tooth impression, allowing it to flow into the impression.
• Repeat this step until all the tooth impressions are filled. The plaster should flow around the arch of the impression, completely filling one toothat a time.
• Carefully check for bubbles. The vibrator should eliminate these; however, if a bubble appears and does not go away with vibration, pop it with a small instrument.
• Allow the mix in the impression to reach the ‘initial set’ . This usually occurs between 9-11 minutes and will be several minutes after the plaster loses its glossy appearance.
Second Stage Pour:
• When the tooth depressions have filled, add plaster in larger amounts to a level slightly above the impression walls. Continue to vibrate to ensure complete coverage.
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• Blend the pours together with the spatula to create a continuous connection. While holding the handle of the impression tray, use the spatula to shape the sides of the model material around the first pour. Avoid placing the wet material from the base onto the impression tray because this would create a mechanical lock that is difficult to separate when set.
• Place the remaining model material onto a tile, forming a mound slightly wider than the impression
• Add the base to the top of the filled impression by inverting the impression onto the base
• The final setting time is between 45-60 minutes from the start of the second pour
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Storage instructions
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• Gypsum Plaster xcan be safely stored in its sealed packaging. Ensure packaging is correctly sealed after usage.
• The shelf life of the plaster is 12 months from the date of manufacture
• Gypsum Plaster must be stored in a dry environment away from direct sunlight
• Once mixed, any unused Gympusm Plaster x must be disposed of appropriately
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