Sand dollars are beautiful marine animals that can be found on beaches around the world. They are often cherished for their intricate designs and fascinating history. If you’ve been lucky enough to find a sand dollar, you may want to harden it to preserve its beauty for years to come. Here are 8 steps on how to harden a sand dollar:

1. Clean the sand dollar: Start by gently rinsing the sand dollar with fresh water to remove any sand or debris. Avoid scrubbing or rubbing it, as this can damage the delicate surface.

2. Soak in a bleach solution: To help remove any remaining organic matter and whiten the sand dollar, soak it in a solution of one part bleach to three parts water. Be sure not to leave it in the solution for too long, as it may become brittle – about 15 to 30 minutes should suffice.

3. Rinse and dry: Once the soaking is complete, gently rinse the sand dollar with clean water and place it on a paper towel or cloth to air dry.

4. Harden with white glue: To strengthen and preserve your sand dollar, mix equal parts white glue (like Elmer’s) and water in a small container. Using an old paintbrush or sponge brush, gently apply the mixture over both sides of the dried sand dollar. This step will give additional support and prevent crumbling.

5. Let it dry: Allow your sand dollar to dry completely before moving on to the next step; this may take several hours or even overnight.

6. Seal with clear varnish: Once your sand dollar is dry, apply a clear varnish or sealer (available at craft stores) using a clean paintbrush – this will protect your sand dollar from moisture, dust, and damage.

7. Dry again: Allow your sealed sand dollar to dry completely – this may take several hours, or you can leave it to dry overnight.

8. Display or store your sand dollar: Now that your sand dollar is hardened and preserved, you can display it in a shadow box, use it for crafts or home decor, or simply keep it in a safe place as a cherished souvenir.

By following these steps, you’ll be able to enjoy the natural beauty and wonder of your sand dollar for years to come. Happy beachcombing!