Abstract
Aim of the study: measuring the flow of new experimental
modeling waxes. Materials and methods: preparation of
one hundred twenty (120) samples of different
experimental modeling waxes by mixing of different
percentages of Iraqi natural waxes ( hard paraffin, soft
paraffin and beeswax) and additives (starch, gum Arabic,
rosin and Na-carboxymethylcellulose) using mold made
from brass according to ADA specification and measure
the flow of them by using vicat apparatus after making
modification on it. Results: The experimental modeling
wax (80% hard paraffin + 20% soft paraffin) and (80%
beeswax + 20% soft paraffin) had the most nearest
properties to control (Polywax) at 40c°and 45c° and
experimental modeling wax (90% beeswax + 10% starch)
to control (Major) at 40c° and experimental modeling
waxes (80% beeswax + 20% hard paraffin), (80% hard
paraffin + 15% soft paraffin + 5% beeswax), (70% hard
paraffin + 20% soft paraffin + 10% beeswax) and (90%
beeswax + 10% starch) to control (Major) at 45c°.
Conclusions: The flow of waxes increased with increasing
heating temperature from 40°C to 45°C.
