Category Archives: Lab Blog

Claw Molding

Finally getting to the molding process of two of the Falcarius claws collected at the Crystal Geyser Quarry.  Reconstructed the missing tip on one and added just a smidgeon at the end of the other to complete it.  Looking good so far.  We’ll see in 24 hours how the molding material set up and get to pouring the other side.  Then on to the casting.

Two claws set up for molding. These specimens have been carefully surrounded by clay along the flat edge of the claw. This is the best spot to have a seem in the two-part mold.
Claws and mixed rubber ready to go. The clay base has been surrounded by a clay wall and sealed. A groove has been created on the flat surface of clay surrounding the claws. If you look closely you will see pointed numbering that will be a permanent marking to identify the specimens.
The mixed rubber in liquid form was first painted on the surface to ensure that no air bubbles will be trapped. The remainder of the rubber was then poured into the mold, with a little bit of giggling to release any additional bubbles. Now the mold will sit for 24 hours (the curing time of the rubber).

Claw Bones in Prep

The field expedition to the Mussentuchit and the Crystal Geyser Quarry in Utah was a success.  Sometimes spending three weeks together with the same small group of people can be questionable.  One person can ruin the entire mood.  This was not one of those trips and I am happy to say that many specimens were collected and brought safely back to the museum for preparation.

I think you found a claw Alex (Juarez). Bring it back to the Lab for preparation

The first task was to  determine which specimens should be placed at the top of the preparation list.  The three unguals collected at the crystal geyser quarry were selected as highest priority.  One of them will be molded and cast as a thank you to our rockethub feulers.

Nice find. Too bad it is missing the tip