I’ve been looking for autoclavable anti-back flow couplers for a while, these work great
Wonderfill Tongue & Void Filler
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Wonderfill ® tongue and void filler is a pre-mixed impression material that saves time mixing alginate filler or grinding out stone from lower impressions. Use it as a void filler, filling in the tongue area, bubbles, missing teeth, and undercuts. It is easy to use — Simply fill void, pour, and set plaster!
Product Features:
- Removing filler will leave a perfectly clean model.
- Material is easy-to-form, water-soluable, and non-toxic.
- Approximate time it takes to make a model with Wonderfill is 5 minutes.
- Alginate material takes about 10 minutes and plaster/stone takes about 25 minutes.
- You can also use this material with a bleaching tray and will block out the area that needs to be bleached.
- After using Wonderfill to block out the bleachable areas, directly apply Wonderfreeze® cooling spray to the vacuum forming material. Then remove Wonderfill from the model.
- Comes in a 51 oz. resealable container that extends its shelf life.
See more information HERE.
Wonderfill ® tongue and void filler is a pre-mixed impression material that saves time mixing alginate filler or grinding out stone from lower impressions. Use it as a void filler, filling in the tongue area, bubbles, missing teeth, and undercuts. It is easy to use — Simply fill void, pour, and set plaster!
Product Features:
- Removing filler will leave a perfectly clean model.
- Material is easy-to-form, water-soluable, and non-toxic.
- Approximate time it takes to make a model with Wonderfill is 5 minutes.
- Alginate material takes about 10 minutes and plaster/stone takes about 25 minutes.
- You can also use this material with a bleaching tray and will block out the area that needs to be bleached.
- After using Wonderfill to block out the bleachable areas, directly apply Wonderfreeze® cooling spray to the vacuum forming material. Then remove Wonderfill from the model.
- Comes in a 51 oz. resealable container that extends its shelf life.
See more information HERE.