Synthetic Sable Or synthetic brushes are they good also for ink colors or Acriliq colors ?

Ink would be fine, but acrylics won't work. They will kill your brush. this brush is way to soft for an acrylic medium. They are usually meant for watercolor or ink. I definitely wouldn't use it for acrylics.

Can this brush be used for gouache?

I use watercolor and gouache paints interchangeably with my brushes. So, yes. BUT, I never use those brushes for acrylics or oils.

Is the tip of the quill brush suppose to be lose?

YES, its supposed to be that way.... this mop brush is super versatile allowing you to make many different kinds of watercolor marks. For example, a loose tip can be flattened to make a mark very much like a flat brush, while holding the brush vertical will give you a fine line like a rigger brush and of course it can be used to make a large wash because of all the paint it naturally holds. These marks can more easily be made because it's a non-ridge brush.

How do I decide which size brush to buy? 4 or 6?

The size of brush you chose is relative to the size of painting you normally produce. The #4 should be adequate for 1/4 sheets (11"x 15") and smaller. Any larger paper would require at least a #6.

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Princeton Neptune Quill Brush, Synthetic, Short Handle, Size 6, 1 Count

Product ID: 19150951

Details

Brand
Princeton Art
Brush Width
0.55 inches
Color
Dark Wood
Material
Wood
Size
Size 6

🌊Perfect for smooth, flowing washes

💧Holds massive water reservoir

🖌️Silky soft synthetic quill bristles

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Description

🎨 Dive into watercolor mastery with the thirstiest brush on the market!

PRECISION MEETS FLOW - Pointed quill tip balances detail with broad strokes effortlessly
COLLECTIBLE ARTISAN ELEGANCE - Rich wood and sea glass aquarelle handle—paint with style
OCEAN OF COLOR IN EVERY STROKE - Unmatched water retention for vibrant, continuous washes
DURABLE ETHICAL CRAFTSMANSHIP - Professional-grade synthetic fibers with eco-conscious design
VELVETY SOFT SYNTHETIC BRISTLES - Experience the luxury of natural squirrel softness without compromise

The Princeton Neptune Quill Brush Size 6 features ultra-soft synthetic quill bristles that hold an exceptional amount of water, enabling smooth, vibrant watercolor washes. Designed with a short aquarelle handle in rich wood tones, this professional-grade brush offers durability and animal-friendly materials. Ideal for artists seeking fluidity and precision in their work, it excels at soft washes and medium-detail painting, making it a must-have for serious watercolorists.

Specifications

ASIN	B00512C1VS
Best Sellers Rank	#21,082 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #3 in Quill Art Paintbrushes
Brand Name	Princeton Art & Brush Company
Bristle Type	Quill Bristle
Brush Width	0.55 inches
Color	Dark Wood
Customer Reviews	4.8 4.8 out of 5 stars (1,308)
Global Trade Identification Number	00757063475251
Handle Type	aquarelle handles
Item Type Name	Paintbrush
Item Weight	9.07 g
Manufacturer	Princeton
Manufacturer Part Number	P4750Q6
Material Type	Wood
Model Number	P4750Q6
Number of Packs	1
Paint Type	Watercolor
Set Name	Neptune
Size	Size 6
UPC	798804820428 757063475251
Unit Count	1 Count

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32727CFA

Duties & taxes included

In stock

Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Senegal.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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