QK3740 Wetting and Dispersing Agent

Name: QK3740 Wetting and Dispersing Agent
Brand: LIYANG New Chem

100% active polymer dispersant that adds no carrier to waterborne coatings, inks and concentrates.

Positioned against Clariant Dispersogen 2774

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QK3740 Wetting and Dispersing Agent identification panel showing model code, chemistry family and the grade it is positioned against

Product Overview

QK3740 is a polymer dispersant supplied at 100% active substance, so nothing but dispersant goes into the formulation. It carries non-ionic modified pigment affinity groups and improves wetting, dispersion and storage stability in waterborne coatings, waterborne inks and pigment concentrates, with good performance on organic pigment and carbon black.

Key Benefits

100% active, so no water or solvent carrier is added to the formulation
Lower dosage figures than the 35-40% active grades for the same pigment
Improves wetting, shortens grind time and cuts mill base viscosity
Raises gloss, tinting strength, transparency and hiding power
Good dispersing power on organic pigment and carbon black

At A Glance

Chemistry: Non-ionic modified polymer with pigment affinity groups
Family: Wetting and Dispersing
Category: Coating Additives
Positioned against: Clariant Dispersogen 2774
Appearance reference: Yellow liquid

Who It Is For

Formulators working to a tight solids or water budget
Ink producers needing a compact dispersant addition
Concentrate makers who want fewer carriers in the paste

Problems It Solves

Dispersant carrier crowding out formulation space
High grind viscosity limiting pigment loading
Poor storage stability in pigment pastes

Application Scenarios

Formulations where every point of formulation space is already allocated
Waterborne wood and industrial coatings
Waterborne inks
Pigment concentrate pastes

Technical Features

100% active substance content
pH 7, density approximately 1.0 g/cm3
Turns cloudy at low temperature; warming restores normal use
Dissolved in water or a glycol solvent such as ethylene glycol before it goes into the mill base

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	Polymer with non-ionic modified pigment affinity groups
Appearance	Yellow liquid
Active ingredient	100% active
Density	Approximately 1.0 g/cm3
pH	7
Storage	15-35C, out of direct sunlight
Shelf life	24 months from production date
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	1-5%
Organic pigments	10-30%
Carbon black	40-80%

Use Guide

Dissolve the additive evenly in water or a glycol solvent such as ethylene glycol.
Add the solution to the mill base, then grind.
Cloudiness at low storage temperature is normal; warm the drum before use.
Avoid direct skin contact; rinse with soap and water if it occurs.

Quality Control On Your Side

Confirm the additive is fully dissolved before the pigment goes in
Check mill base viscosity against the previous dispersant at equal pigment loading
Run a 40C storage test on the finished paste

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 and QK3755	Both are 40% active in water; QK3740 is 100% active, so dosage figures are lower for the same pigment.
QK3730	QK3730 is APEO-free and aimed at carbon black and inkjet; QK3740 is the general-purpose 100% active grade.
Surfactant-only wetting agent	Polymer anchoring gives long-term stabilisation rather than short-term wetting.

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