---
product_id: 274931073
title: "Winsor & Newton Professional Acrylic Medium Flow Improver, 250ml (Packaging May Vary)"
brand: "winsor & newton"
price: "฿2787"
currency: THB
in_stock: true
url: https://www.desertcart.co.th/products/274931073-winsor-and-newton-professional-acrylic-medium-flow-improver-250ml-packaging
store_origin: TH
region: Thailand
---

# Slows Drying Flow Enhancer Flat Application Winsor & Newton Professional Acrylic Medium Flow Improver, 250ml (Packaging May Vary)

**Brand:** winsor & newton
**Price:** ฿2787
**Availability:** ✅ In Stock

## Summary

> 🎉 Elevate Your Artistry with Every Stroke!

## Quick Answers

- **What is this?** Winsor & Newton Professional Acrylic Medium Flow Improver, 250ml (Packaging May Vary) by winsor & newton
- **How much does it cost?** ฿2787 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/274931073-winsor-and-newton-professional-acrylic-medium-flow-improver-250ml-packaging)

## Best For

- winsor & newton enthusiasts

## Why This Product

- Trusted winsor & newton brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Versatile Use:** Designed for canvas, this medium adapts to various painting styles effortlessly.
- • **Stay in Control:** Maintains color stability while slightly slowing drying time for meticulous detailing.
- • **Professional Quality:** Crafted by Winsor & Newton, a trusted name in art supplies, ensuring top-tier performance.
- • **Perfect for Precision:** Ideal for hard edge techniques, ensuring your colors stay true and vibrant.
- • **Unleash Your Creativity:** Transform your acrylic painting with enhanced flow for smooth, even coverage.

## Overview

The Winsor & Newton Professional Acrylic Medium Flow Improver is a 250ml medium designed to enhance the flow of acrylic colors, allowing for smooth, even application without compromising color strength. Perfect for artists seeking precision in their work, this medium maintains color stability and slightly slows drying time, making it ideal for detailed techniques on canvas.

## Description

Professional Acrylic Medium Flow Improver, 250ml (Packaging May Vary)

## Features

- Medium Increases The Flow Of Acrylic Colors, Allowing The Application Of Areas Of Flat, Even Color Without Changing Color Strength
- Effective For Hard Edge Painting Techniques
- Maintains The Stability Of The Color And Slightly Slows Drying

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | ColArt Americas |
| Part number | 3040937 |
| Item Weight | 150 g |
| Product Dimensions | 15.8 x 5.9 x 5.9 cm; 150 g |
| Item model number | 3040937 |
| Size | 8.4 Fl Oz (Pack of 1) |
| Color | Flow Improver |
| Style | 250ml (8.5-oz) |
| Finish | Satin |
| Material | Acrylic |
| Item Package Quantity | 1 |
| Coverage | Medium |
| Special Features | Fast-Drying |
| Specific uses | canvas |
| Included components | Acrylic |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Brand:** Winsor & Newton
- **Colour:** Flow Improver
- **Finish type:** Satin
- **Size:** 8.4 Fl Oz (Pack of 1)
- **Item volume:** 250 Milliliters

## Images

![Winsor & Newton Professional Acrylic Medium Flow Improver, 250ml (Packaging May Vary) - Image 1](https://m.media-amazon.com/images/I/712cPDtnniL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Questions & Answers

**Q: Has anyone tried this as a photo transfer to wood?  Using regular acrylic medium now, but don't like the white base.**
A: This  might work because it is clear and flexible when dry. I have used it on wood before and it is perfect.

**Q: Safe to use as a sealant for acrylic paint repainted barbie/doll faces? (vinyl&plastics)? water-based/mixable? does it dry sticky? any fumes?**
A: I've used the Winsor & Newton Matte Acrylic Varnish as a top coat and protective finish whenever a colored acrylic is used as a base.  I've used W&N varnish over acrylic primers and paint on hard plastics, wood, and metal surfaces.  The underlying acrylics from any company can be used as a base as long as they are labeled as  such.

In answer to your specific questions - I've never painted on vinyl or soft plastics like doll faces but if your acrylic base coat and color adheres well to such surfaces then the W&N varnish will also adhere.  The varnish is only a top layer that locks onto the underlying coat of paint to prevent smudges and to keep the surface clean.  And of course the UV with this varnish is supposed to protect against sunlight discoloration - but be aware no UV coating will last forever.

Acrylics by definition are water based.  Although I might thin color acrylics with water I would not thin any varnish with water because it would affect its chemical makeup and thus its functionality.  W&N does sell an acrylic based thinner though that I always use when airbrushing since the varnish is a little thick for that purpose.  I imagine that this thinner will also work when hand brushing if that is what you're doing.

The varnish dries hard and there is a mild smell to the liquid varnish but not an unpleasant one.  That smell disappears once the varnish has dried.

**Q: If I mix this medium with a powder pigment, then i will have my own acrylic paint?**
A: This stuff is very thick, not paint texture. Instead try a gloss or matte acrylic medium for adding pigments to for a more paint like texture.

**Q: Can I use this to fill spaces/cracks between planks on a wooden boat model? I will need to be able to sand and then paint with acrylic paint**
A: I would think so. I have not used it for that. It is a good product, and if you called customer service they could probably answer any questions.

## Frequently Bought Together

- Winsor & Newton Professional Acrylic Medium, Flow Improver, 250ml (8.5-oz)
- Winsor & Newton Galeria Acrylic Color, 60ml (2-oz) Tube, Cadmium Orange Hue
- Liquitex BASICS Acrylic Paint, 118ml (4-oz) Tube, Brilliant Purple

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-04-25*