Bleach Dilution Table
Each bleach brand and fabric type reacts differently, which is why finding the right dilution is key to controlling your designs. In most of my tutorials, you’ll hear me mention a 30/70 bleach-to-water ratio for shading, but that might not be the perfect mix for you.
This exercise will help you build a personal bleach dilution reference table so you can confidently choose the right strength for your projects. Hold onto this table! It will be a valuable guide whenever you test bleach on a new fabric.
Why is this table important?
✔ Bleach strength varies – Some brands are stronger than others, and even household bleach can change in potency over time. This table helps you track how your bleach reacts.
✔ Fabrics react differently – A dilution that works perfectly on one shirt might not give the same effect on another. When working with a new fabric, you can test a small, hidden area and compare it to your chart. If the reaction is too weak or too strong, adjust your dilution accordingly.
✔ Layering changes the effect – Bleach continues to develop as it dries, and layering it can intensify the color change. By testing 1, 2, and 3 layers of each dilution, you’ll understand how to build up effects in your art.
By keeping this chart as a reference, you’ll save time when starting new projects, allowing you to focus on creating rather than guessing.
📋 What You’ll Need:
✔ A piece of dark-colored 100% cotton fabric (or test swatches from different fabrics)
✔ Household bleach
✔ Water for dilutions
✔ Small containers for mixing
✔ A fine-tipped brush for application
✔ A well-ventilated workspace and gloves for safety
Step 1: Create Your Dilution Chart
You'll be testing bleach at different strengths and layering it up to three times to see how it reacts. Prepare five mixtures:
| Dilution Strength | Bleach-to-Water Ratio | Example (in mL/oz) |
|---|---|---|
| 100% (Full Strength) | No dilution, pure bleach | 100 mL bleach (3.4 oz), no water |
| 70% | 7 parts bleach, 3 parts water | 70 mL bleach (2.4 oz) + 30 mL water (1 oz) |
| 50% | Equal parts bleach and water | 50 mL bleach (1.7 oz) + 50 mL water (1.7 oz) |
| 30% | 3 parts bleach, 7 parts water | 30 mL bleach (1 oz) + 70 mL water (2.4 oz) |
| 15% | 1 part bleach, 6 parts water | 15 mL bleach (0.5 oz) + 85 mL water (2.9 oz) |
Step 2: Apply & Observe
1️⃣ Apply the bleach in rows – Using a fine-tipped brush, paint a stroke of each dilution on your test fabric.
2️⃣ Let the bleach react – Wait 5–10 minutes to see how the fabric develops. Some bleach mixtures react instantly, while others take time to show.
3️⃣ Layer it up – Once dry, apply a second layer of bleach on half of each stroke to see how the color deepens. Repeat for a third layer to test the maximum effect.
🔍 Step 3: Analyze Your Results
✔ Which dilution gave the softest fade?
✔ Which one produced the highest contrast?
✔ How much layering is needed for a bold effect?
By completing this table, you’ll start to recognize the best dilutions for shading, highlights, and bold strokes in your bleach paintings. Whenever you try a new fabric, use this test to adjust your bleach mixture accordingly!
📌 Practice Tip:
Try this on multiple fabric types (cotton, blends, denim, etc.) and note how the bleach behaves differently on each one.