Pro-Lux light-curing Die Spacer by al dente equipped with features that are convincing:

-PRO-LUX cures within about 90 seconds in all current light curing units (light colour 78)
-PRO-LUX cures as hard as glass, but does not get brittle
-PRO-LUX is resistant to all steam-jets
-PRO-LUX does not need any thinner
-PRO-LUX is ideally suitable for sealing the model base below a pontic. No more worries, the layered ceramic may break -
it can easily be removed from the model.
-PRO-LUX can also be used for sealing and hardening the antagonist
-PRO-LUX is available in blue and transparent

unit: 20 ml