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Published byBarrie Stewart Modified over 9 years ago
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1 PREPARING CEMENTS
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2 INSTRUCTIONS FOR PREPARING POWDER PREPARING CEMENTS shake powder before use shake powder before use don‘t compress powder in the measuring scoop
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3 PREPARING CEMENTS PREPARING CEMENTS Overfill the measuring scoop with powder and then remove surplus powder using the edge of the cut-off insert in the bottle neck. Overfill the measuring scoop with powder and then remove surplus powder using the edge of the cut-off insert in the bottle neck. INSTRUCTIONS FOR PREPARING POWDER
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4 PREPARING CEMENTS INSTRUCTIONS FOR PREPARING LIQUID hold the bottle vertically when dosing liquid to achieve optimum drop size, squeeze the bottle gently any dried material must be removed from the dropper
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5 MIXING RATIO PREPARING KAVITAN KAVITAN PRO 3,5g : 1g = 1 measuring scoop : 1 drop of liquid KAVITAN PLUS 2,7g : 1g = 1 measuring scoop : 1 drop of liquid KAVITAN CEM 1,4g : 1g = 1 measuring scoop : 2 drops of liquid
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6 Place powder and liquid on a smooth disposable paper pad or a glass p late add powder to liquid in 2 – 4 doses mix powder and liquid using a plastic or stainless spatula at the shortest possible time (max. 30 – 45 s.) Properly prepared cement is homogenous, flexible and non-adhesive material PREPARING KAVITAN
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7 KAVITAN PLUS PREPARATION MIXING TIME30 – 45 s WORKING TIME2 – 3 min MANIPULATING TIMEmin. 1:30 min SETTING TIMEmin. 5 min KAVITAN PRO PREPARATION MIXING TIME30 – 45 s WORKING TIME 2 – 3 min MANIPULATING TIMEmin. 1:30 min SETTING TIME min. 4 min PREPARING KAVITAN
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8 mixing ratio of KAVITAN LC: 1 measuring scoop of powder 2 drops of liquid Add powder to liquid in 2 – 4 doses PREPARING KAVITAN LC
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9 mixing time max. 30 – 45 sec density of putty, bright finish PREPARING KAVITAN LC
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10 30 - 45s 3 min Mixing Working time Mixing Working time WORKING TIME WORKING TIME Polymerization Polymerization 20s 20s PREPARING KAVITAN LC
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11 MIXING RATIO PREPARING ADHESOR Base Layers and Fillings a) Base Layers and Fillings 23 2,30g : 0,80g = 2 measuring scoops of powder : 3 drops of liquid MIXING TIME2 – 2:30 min WORKING TIME 4 – 4:30 min SETTING TIME6 – 7 min
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12 MIXING RATIO PREPARING ADHESOR Fixed Bridge Bonding b) Fixed Bridge Bonding 25 1,40g : 0,80g = 2 measuring scoops of powder : 5 drops of liquid MIXING TIME1 – 1:30 min WORKING TIME 3 – 4 min SETTING TIME6 – 8 min
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13 PREPARING ADHESOR mix on a glass plate with stainless spatula at 23 ± 1 ºC (to prolong the working time, mixing at 20 ºC is recommended) 8 – 12 parts lumps divide powder into 8 – 12 parts and gradually, slowly mix in to avoid lumps MIXING PROCEDURE
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14 Mistakes in preparation Incorrect dose of powder or liquid Differing size of drop while measuring Inadequate mixing of whole amount of powder into liquid The dropper must be kept clean PREPARING CEMENT
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15 PREPARING CEMENTS TIPS Before turning the bottle to the vertical position, hold it at an angle of 45º to remove air bubbles
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16 STORING CEMENTS in a cold and dry place in a well sealed inner container at temperature 5 ºC to 25 ºC avoid temperature higher than 25 ºC !!! Seal the bottle and the jar carefully after withdrawing powder and liquid !!!!
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17 Thank you for your attention!
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