How to Make Your Own Sinker White for Resin Art

DIY Additive Using Acetone(Nail Polish Remover), Isopropyl Alcohol & White Pigment Paste

Resin can do amazing things, and sometimes the best additives are the ones you create yourself! Sinker white is a heavier white mixture that helps push alcohol inks or colours down through your resin, creating beautiful sinking blooms and effects (like the vibrant pink-and-white piece shown below).

Here’s the simple formula that worked well for the example in the photo:

What You’ll Need:100% pure acetone (or 100% acetone nail polish remover) 
99%+ Isopropyl alcohol (IPA) 
White pigment paste (resin-compatible) 
Small mixing cups, stir sticks, and droppers 
Gloves, eye protection, and good ventilation 
 
Basic Ratio (start small and test): In a small cup, add a small amount of white pigment paste (start with ½–1 teaspoon). 
Add a few drops of 100% acetone to break down the pigment paste. Stir well until smooth. The acetone helps the paste disperse. 
Top up with isopropyl alcohol (roughly 70% alcohol to 30% acetone ratio overall). Stir thoroughly until fully mixed and pourable. 
 
The exact amounts can vary depending on your pigment thickness and resin viscosity — start small and adjust until you get a milky white liquid that sinks nicely when dropped into resin.

Safety First:Work in a well-ventilated area (acetone and alcohol fumes are strong). 
Wear nitrile gloves and eye protection. 
Never mix large batches at once. Test in small quantities. 
Keep away from open flames — these are flammable. 
Label your container clearly and store in a cool, safe place. 
 
Once mixed, you can drop your homemade sinker white into coloured resin pours to create sinking effects and patterns.  Tomorrow I’ll demold the piece in the photo and we’ll see how this batch turned out — fingers crossed!

Have you tried making your own resin additives? Share your results or tips in the comments.

Stay safe and keep creating! 
Magdelene

My Three Wise Dragons Are Almost Complete!

See No Evil • Speak No Evil • Hear No Evil

Hello fellow makers!  If you’ve been following along, you know I’ve been quietly working on a brand-new resin sculpture series: the Three Wise Dragons. These little guys are my playful twist on the classic “see no evil, speak no evil, hear no evil” proverb—except they’re adorable, spiky, and full of personality.

In the photo above you can meet the first two members of the trio: The fiery red-pink dragon is cast in ResinCrete. He’s solid, matte, and has that lovely stone-like weight. He’s my “See No Evil” dragon—paws pressed sweetly over his eyes, looking both mischievous and wise at the same time.   
The vibrant blue dragon is made with clear epoxy resin. He came out beautifully glossy with a deep, jewel-like shine. His expression is more curious and watchful—perfect for the “Speak No Evil” role. 
 
And the best part? The third dragon—Hear No Evil—is still tucked away in his mold right now. He’s being cast in a light, transparent green epoxy that I’m really excited about. Once he’s demolded (hopefully later today!), the whole trio will be together for the first time.

Next steps for all three:  Light sanding   
A few coats of sealer   
Hand-painted details (tiny gold accents on the horns and eyes are already planned)   
Maybe a soft gloss on the eyes to make them pop 
 
I’ll be sharing the full reveal + a step-by-step “how I cast them” post once the green one is out and they’re all finished. These little dragons have been so much fun to make—each one feels like it has its own tiny soul.

Would you love to see a full tutorial on how I make these (mold making, resin choice, demolding tricks, etc.)? Let me know in the comments!  

Happy Creating!