QK3778 Waterborne Dispersant

Name: QK3778 Waterborne Dispersant
Brand: LIYANG New Chem

Universal waterborne dispersant at 60% active that handles every pigment class including anti-corrosive fillers.

Positioned against Allnex 6208

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QK3778 Waterborne Dispersant identification panel showing model code, chemistry family and the grade it is positioned against

Product Overview

QK3778 is a universal dispersant for waterborne systems, supplied at 60% active. It disperses all pigment classes, including anti-corrosive pigments and extenders, and is suitable for pigment concentrate pastes. Colour development is strong across inorganic, organic and carbon black loadings, and the product carries a 36-month shelf life unopened.

Key Benefits

One dispersant covering inorganic, organic, carbon black and anti-corrosive pigments
60% active content, so less carrier goes into the formulation
Suitable for pigment concentrate pastes as well as finished paint
Strong colour development and colour strength
36-month shelf life unopened, which suits slow-moving speciality grades

At A Glance

Chemistry: Specially modified polymer
Family: Wetting and Dispersing
Category: Coating Additives
Positioned against: Allnex 6208
Appearance reference: Light yellow liquid

Who It Is For

Waterborne paint plants that want to reduce the number of dispersants they stock
Pigment concentrate producers
Protective coating formulators working with anti-corrosive pigments

Problems It Solves

Needing a different dispersant for each pigment class
Weak colour strength and poor jetness in waterborne tints
Anti-corrosive pigments that resist dispersion with general-purpose additives

Application Scenarios

Waterborne anti-corrosive primers with zinc phosphate or similar pigments
Waterborne pigment concentrate production
Waterborne industrial topcoats across a full colour range

Technical Features

Specially modified polymer at 60% active content
Acid value 15-30
Density 1.04-1.08
Below 5C it may separate or go cloudy; polymer quality is unaffected after warming

Specification

Typical Data And Dosage

Typical values are indicative of the product and are not release specifications. Figures are reproduced from the manufacturer data sheet.

Chemical composition	Specially modified polymer
Appearance	Light yellow liquid
Active content	60%
Density	1.04-1.08
Acid value	15-30
Storage	Cool and dry
Shelf life	36 months unopened
Packing	25 kg / 200 kg

Recommended Dosage

All dispersant and additive dosage figures below are quoted exactly as the source data sheet quotes them. Dispersant figures are percentages on pigment weight, not on the total batch. The published values are empirical, so confirm the optimum with a dosage ladder in your own system.

Inorganic pigments	2-10%
Organic pigments	20-50%
Carbon black	40-60%

Use Guide

Add QK3778 at the grinding stage.
Dosage figures are on pigment, so recalculate when the pigment loading changes.
If the drum has been below 5C, warm it and remix before use.

Quality Control On Your Side

Check colour strength against a reference tint on every batch of concentrate
Confirm grind fineness after the dosage is set
Test storage stability of the concentrate at both 5C and 40C

Comparison

How It Compares With The Alternatives

Technical comparison against other ways of solving the same problem. Nothing here is a performance claim against a named commercial product.

QK3770	QK3778 is 60% active and covers anti-corrosive pigments; QK3770 is 40% active and VOC-free.
Low molecular weight polyacid	Handles organic pigments and carbon black, where a simple polyacid runs out of anchoring.
Solventborne dispersant	Designed for water, so no co-solvent has to be carried into the formulation.

Customisation And Supply

Packing as published on this page; other pack sizes are confirmed per order
Technical data sheet and, where available, safety data sheet supplied by email on request
Tailor-made products can be discussed; send the property you need and the system it goes into
Shipped from Tianjin, China by sea or air

Questions