FLEXBRUSH Blue Stone Acrylic Brush

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Frequently bought together:


Kolinsky Acrylic Nail Brush for Acrylic Powder

Each brush handle has a large blue rhinestone (8mm)


Hair/Bristle: KOLINSKY/RED SABLE is best use for acrylic systems

Handle Color: Wood paint black lacquer with Acetone and Liquid Monomer proof.

Brush hairs are obtained from members of the weasel family with "red" hair. The Quality and characteristics of weasel hairs vary greatly.

The finest soft brush hairs are obtained from the Kolinsky, a Long-tailed weaseled

Photograph:Long-tailed weasel (Mustela frenata).animal found in cold regions of Russia and China. Each Kolinsky hair has a fine point, and its overall structure ensures that the hairs cling closely together when wet. More specifically, the guard hairs from the tail of a male Kolinsky make the best brushes. These hairs are unsurpassed for spring and strength, they are the standard by which all other soft hairs (synthetic or natural) are judged.
Red sable brushes of lesser quality may be made of hair taken from other body areas of the male Kolinsky, female Kolinskies (shorter hair) and other European or Chinese weasels.
Red Sable hair has a natural thickness at the belly which provides superior spring and snap. This thickness can be placed just inside or outside the ferrule and the performance characteristics of the brush will vary accordingly. In    order to do this, long hairs must be used and about half of their length will be contained inside the ferrule.
Because of their strength, spring, and absorbency, high-quality Kolinsky  brushes are considered to be the best for Acrylic, which requires that a brush be able to hold the liquid long and retain a fine point when wet.
Important to this ability to hold liquid are the absorbent properties of a brush. This is its ability to act as a reservoir and release liquid in a controlled manner according to a nail tech. Natural hair has a center structure called the  medulla which is covered by a thick sheath known as the cortex and layered by a shell of scales. These scales and hollows within the center structure hold and trap the liquid, releasing it as pressure is applied to the brush.

Brush Shapes and Their Uses



  • Use on point, or apply pressure to make thick-to-thin strokes.
  • This is the less common use by nail tech.
  • Strokes with soft edges. 
  • A round brush have a largest belly hold a large amount of liquid monomer offering the versatility of multiple strokes. Pick up acrylic powder by the point and form a round ball.



  • This is the most common and versatile style of brush.
  • Strokes with soft edges. Blending. A natural flower petal shape.
  • The oval brush is same structure with round brush but manufacture press to flat ferrule to have a shape between round and flat.
  • A Oval brush have a large belly hold a large amount of liquid monomer offering the versatility of multiple strokes. Pick up Acrylic powder the from one side of brush.

 Brush Care & Tips.

  • Proper use, together with correct care and cleaning will ensure your brushes have longer life.
  • I hope the following tips will help.
  • Storage is important - always keep aired and whenever possible, in the upright position. Natural hair needs to breathe in order to prevent mould growth. Keep your brushes out of direct sunlight.
  • Try to keep handles dry, to prevent them from loosening and cracking. When you dip the head into liquid monomer or brush cleaner, try to keep the liquid level below the crimping and only wet the ferrule.
  • Moulting or shedding hairs from a new brush is a normal process. Once the brush is broken in and following a few application sessions the moulting will stop. Always thoroughly rinse a new brush with brush cleaner or liquid monomer before first use.
  • Always clean a good quality brush thoroughly after each processing session with brush cleaner or liquid monomer DO NOT USE ACETONE because Acetone will remove the shine from bristle make acrylic tacky and buildup residue. Remove as much moisture as possible with paper towel and reshape before storing.


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9 Reviews

  • 5
    acrylic brush

    Posted by elsa on 2nd Jun 2021

    nice brush

  • 5
    Best brush I’ve ever used

    Posted by Misti Hutchins on 19th Apr 2021

    Seriously I have been searching for the perfect brush for many years and I found it! I ordered a 14 first and wasn’t expecting it to be so large. I then ordered a 10. And both are perfect! It’s so thick, long and applies acrylic so smoothly. Makes creating dream nails even easier!! Thank you TDI please never stop selling these!!

  • 4
    Haven’t used it yet

    Posted by Maria Velazquez on 22nd Mar 2021

    My 18 is a great brush so ik my 8 is going to just as good

  • 5
    Acrylic brush

    Posted by Shelly Mendoza on 24th Jan 2021

    I love this brush

  • 5

    Posted by bmp on 11th Nov 2020

    This brush is amazing! Before purchasing this brush, I had purchased 2 less expensive brushes at different times in an effort to save money - that was a waste of time and money. The cost of those 2 cheaper brushes was more expensive than one Flexbrush, and I am upset with myself. The Flexbrush has excellent weight and length providing a nice hand feel; the bristles are strong enough to shape a bead, but also forms a precise point to easily and precisely accomplish cuticle application work. I think the Flexbrush is now my forever brush.

  • 5
    Size 14 acrylic brush with blue stone

    Posted by Beatriz Soto on 31st Aug 2020

    This is one of the best brushes I ever bought, it my my acrylic application go on like butter. I was very impressed, although I also bought the size 20 it was also great, but the #14 is great.

  • 5

    Posted by Karah Brown on 21st Aug 2020

    Best brush I used to date hands down

  • 5
    Flexbrush blue stone acrylic brush

    Posted by Maurisa Reyes on 19th Jun 2020

    The brush is perfect the bristle are so soft good quality

  • 5

    Posted by Unknown on 3rd Jun 2020

    Works amazing so glad i bought it

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