Everything You Need To Know Before Working With Jesmonite AC730

Introduction

This tutorial provides a comprehensive guide on how to work with Jesmonite AC730, a unique eco-friendly resin product. AC730 is known for its gritty texture, pre-colored options, and the absence of sanding, making it a favorite among artists and DIY enthusiasts. Whether you’re a beginner or looking to expand your skills, this guide covers everything you need to know to get started with AC730.

Step 1: Understanding Jesmonite AC730

• Jesmonite AC730 is different from AC100 and other eco-friendly resins.
• It has a gritty, gravelly base and comes in 11 pre-colored options that resemble natural stone finishes.
• If you prefer bright colors, you can add Jesmonite pigments to achieve your desired hue.

Step 2: Measuring the Components

• AC730 requires a 5:1 ratio of powder to liquid.
• Measure out 125 grams of powder and 25 grams of liquid.
• Always measure by weight, not volume, to ensure accuracy.
• Use separate containers for powder and liquid to avoid calculation errors.

Step 3: Mixing the Components

• Start by adding a small amount of liquid to the powder and mix until you achieve a crumbly texture.
• Gradually add the remaining liquid while mixing to form a thick paste.
• Mixing AC730 is easier and quicker than AC100, typically taking about five minutes.

Step 4: Minimizing Air Bubbles

• To reduce bubbles, apply a thin layer of the mixture into your mold first.
• Use a paintbrush to spread the mixture into corners and edges.
• Tap the mold gently after pouring to help air bubbles rise to the surface.

Step 5: Adding Color

• If you want to add color, use water-based pigments designed for Jesmonite.
• Mix the pigment with the liquid before combining it with the powder.
• Note that colors may appear duller than expected, so adjust the pigment amount for a bolder finish.

Step 6: Setting and Curing

• Allow AC730 to set for about four to five hours, longer than typical resins.
• Ensure that the product is fully cured before attempting any finishing techniques.

Step 7: Revealing the Texture

• To reveal the granite texture, you can use a solvent like white wine vinegar if the recommended acid etch is unavailable.
• Submerge the cured item in vinegar for 15 to 25 minutes.
• Use an abrasive brush to scrub and reveal the texture.

Step 8: Sealing the Products

• After cleaning, seal your items to protect them from moisture and UV light.
• Use a waterproof and UV-protected sealer. If available, Jesmonite Flexi Guard is recommended.
• Apply the sealer in multiple thin layers for effective coverage.

Conclusion

Jesmonite AC730 offers a versatile and user-friendly option for various crafting projects. By following these steps, you can create beautiful, durable pieces without the hassle of sanding. Experiment with colors and techniques, and don't hesitate to explore more tutorials for additional tips and tricks. Happy crafting!