We see a lot of these DIY mold making videos that show you how to use a silicone caulking to make your own mold molds. The reason the caulking is suggested is because it is cheap, and it is lower cost than most silicone mold making materials. However, compare that to a mold making material that can be reused as many times as you want, and the cost is not comparable. Plus the silicone caulking shrinks by about 25%. 

So if cost is your concern, look at the ImPRESSive Putty MIX. For professional results. The Putty Mix has many advantages over Any mold making material:

1. Reusable

2. Super easy to use

3. Reliable

4. LOW Cost 

5. Even lower cost if you use it lots of times

6. Eco-friendly

7. No toxic chemicals, smells, or harmful ingredients

8. Solidifies by cooling for fast mold making

9. Professional results

10. No need for a mold box 

For those who like mold making materials that pour, the ComposiMold has all the same advantages except you need the mold box.