# The Best Paint Mixing Tools for Miniature Painters Source: https://minipaintlab.com/best/best-paint-mixing-tools Updated: 2026-09-22 Publisher: Mini Paint Lab. Our score is an editorial rating out of 10 (fit 35%, features 25%, build 20%, value 20%), not a customer rating. Method: https://minipaintlab.com/how-we-research#our-score Separated paint is behind more frustrating painting sessions than most people realize. That watery layer on top and pigment sludge at the bottom produce streaky coverage, chalky finishes, and metallics with no shine, no matter how good your brushwork is. Proper mixing tools fix the problem at the source. Stainless steel agitator balls dropped into dropper bottles turn a few shakes into a thorough mix. Battery-powered bottle shakers and lab-style vortex mixers do the hard work in seconds, which matters when you are prepping twenty bottles for an airbrush session. This guide compares agitators, handheld shakers, and vortex mixers on mixing power, bottle compatibility, noise, and durability, plus the small accessories that make mixing custom colors repeatable. ## Picks ### 1. The Army Painter Paint Mixing Balls, 5.5 mm - Rust-Proof Stainless Steel Mixing Balls, 100 PCS Our score: 8.6/10 (Fit for the job 9/10 · Features and specs 8/10 · Build and materials 8/10 · Value 9/10) The Army Painter paint mixing balls in 5.5 mm rust-proof stainless steel, 100 PCS to add to dropper bottles. Pros: - Mixing balls help shake settled pigment back into suspension - Rust-proof stainless steel will not contaminate paint - 100 PCS supply enough for a large dropper bottle collection Cons: - 5.5 mm balls may not fit through narrow bottle necks - Requires opening each bottle to add a ball, which is fiddly Details: https://minipaintlab.com/product/B07Q23FVYR ### 2. Huge Miniatures Paint Mixing Balls, 6.5mm Rustproof Agitators for Paints 150 Pack Our score: 8.0/10 (Fit for the job 8/10 · Features and specs 8/10 · Build and materials 8/10 · Value 8/10) Huge Miniatures paint mixing balls in 6.5mm, rustproof agitators for paints in a 150 pack. Pros: - 6.5mm size fits a wider range of bottles than larger glass balls - Rustproof material keeps paint free of contamination - 150 pack means one ball for most bottles in a big collection Cons: - Still too wide for some small dropper tips, so check bottle necks first - Check the exact metal type behind the rustproof coating Details: https://minipaintlab.com/product/B0921JCQYZ ### 3. 320 pcs Paint Mixing Balls Stainless Steel Mixing Agitator Balls for Mixing Model Paints, 6mm/0.24" Our score: 8.0/10 (Fit for the job 8/10 · Features and specs 8/10 · Build and materials 7/10 · Value 9/10) 320 pcs stainless steel paint mixing agitator balls at 6mm/0.24" for mixing model paints and hobby acrylics. Pros: - 320 pcs are enough for very large paint collections - Stainless steel adds weight for vigorous shaking - 6mm/0.24" size fits common hobby dropper bottles Cons: - Repeated shaking can eventually scratch the inside of glass or soft plastic bottles - Huge quantity is more than most painters will ever use Details: https://minipaintlab.com/product/B0927H1LWV ### 4. SmallCat 100 Pcs Paint Mixing Balls, Rust-Proof 316 Stainless Steel Agitator Balls, 3mm Our score: 8.0/10 (Fit for the job 8/10 · Features and specs 8/10 · Build and materials 8/10 · Value 8/10) SmallCat 100 Pcs paint mixing balls in rust-proof 316 stainless steel at 3mm, tiny agitators for small bottles. Pros: - 316 stainless steel resists rust in water-based paints - 3mm balls slip easily into the smallest dropper bottles - 100 Pcs cover a typical hobby paint collection Cons: - Tiny 3mm balls agitate thick paint less effectively - Easy to lose while dropping them into bottles Details: https://minipaintlab.com/product/B0GLZ5BX75 ### 5. The Army Painter Paint Mixing Empty Dropper Bottles, 12 mL, Plastic Dropper Bottles for Acrylic Paint Our score: 7.9/10 (Fit for the job 9/10 · Features and specs 7/10 · Build and materials 7/10 · Value 8/10) The Army Painter empty dropper bottles in 12 mL, plastic bottles for storing custom acrylic paint mixes and decanting pots. Pros: - Store favorite custom mixes so a color can be matched later - Decanting pot paints into droppers cuts waste and drying out - 12 mL size is compact and suits small batch mixes Cons: - Check the pack quantity before ordering enough bottles - The two mixing balls already inside each bottle can be fiddly to remove for a deep clean Details: https://minipaintlab.com/product/B07PY4YS6W ### 6. MANCHAP 250 Pieces 6mm Metal Paint Mixing Balls, Agitator Balls, Stainless Steel Rust-Proof Bearing Balls Our score: 7.8/10 (Fit for the job 8/10 · Features and specs 7/10 · Build and materials 7/10 · Value 9/10) MANCHAP 250 pieces of 6mm stainless steel rust-proof bearing balls, used as agitators for mixing paints. Pros: - 250 pieces offer a large supply for many bottles - Bearing-grade steel balls are smooth and consistent - 6mm size works in most standard hobby paint bottles Cons: - Sold as bearing balls, not specifically tested for paint - Too many balls for painters with modest collections Details: https://minipaintlab.com/product/B0B5LWKP3R ### 7. 200 Pcs Paint Mixing Balls - Rust-Proof Stainless Steel Balls for Mixing Model Paints, 5.5mm Our score: 7.8/10 (Fit for the job 8/10 · Features and specs 7/10 · Build and materials 7/10 · Value 9/10) 200 Pcs rust-proof stainless steel paint mixing balls at 5.5mm for model paints in dropper bottles. Pros: - 5.5mm size is a common fit for hobby dropper bottles - 200 Pcs give spares for new paints as a collection grows - Rust-proof steel keeps pigments clean over time Cons: - Budget balls may vary slightly in surface finish - Opening sealed bottles to add balls can be messy Details: https://minipaintlab.com/product/B08PG4J6LS ### 8. Huge Miniatures Paint Mixing Balls, 8mm Glass Agitators for Model Paints 150 Pack Our score: 7.6/10 (Fit for the job 7/10 · Features and specs 8/10 · Build and materials 8/10 · Value 8/10) Huge Miniatures paint mixing balls in 8mm glass, a 150 pack of agitators for model paints in larger bottles. Pros: - Glass agitators never rust, even in water-based paints - 8mm size stirs thick settled pigment effectively - 150 pack covers a sizeable paint collection Cons: - 8mm balls are too large for many narrow dropper bottle necks - Glass is lighter than steel, so it agitates slightly less Details: https://minipaintlab.com/product/B0921LM7JB As an Amazon Associate I earn from qualifying purchases.