TEGO Dispers 747 W — Technical Profile
TEGO Dispers 747 W is a Anionic polymer (electrosteric)-based wetting and dispersing additive manufactured by Evonik Industries AG (Germany), part of the TEGO Dispers product line. Effective for iron oxides.
How It Works
TEGO Dispers 747 W adsorbs onto pigment surfaces via anchoring groups (amine, acid, or polar functionalities), then stabilizes the dispersion through steric and/or electrosteric repulsion of the polymeric tails. This prevents flocculation, reduces grinding time, improves color strength, and prevents flooding/floating in multi-pigment systems.
Key Specifications
| Property | Value |
|---|---|
| Chemistry | Anionic polymer (electrosteric) |
| Function | Wetting & dispersing agent |
| Active content | 40–100% |
| Acid value | grade-dependent |
| Amine value | grade-dependent |
| Solvent | varies (water, xylene, methoxypropanol) |
| Recommended dosage | 5–40% based on pigment weight (inorganic); 15–70% based on pigment weight (organic) |
Applications
- Coatings
- Inks
Dosage & Addition
- Recommended dosage: 5–40% based on pigment weight (inorganic); 15–70% based on pigment weight (organic)
- Addition point: Add to the millbase before pigment addition; must be present during grinding
Formulation Considerations
W-suffix grades (740 W, 747 W, 750 W, 755 W) are waterborne-specific. Non-W grades (630, 670, 685, 695) are solventborne. Grade 656 is universal (WB + SB). Proper dosage optimization via rub-out test is essential.
Looking for a TEGO Dispers 747 W Alternative?
Our SEMITECH Additives range offers functionally equivalent wetting and dispersing additives that deliver the same performance as TEGO Dispers 747 W — matched surface tension reduction, compatibility profile, and application behavior — at 20–40% lower cost.
Why formulators switch to SEMITECH Additives:
- Drop-in replacement — no reformulation needed in most systems; matched chemistry (Anionic polymer (electrosteric)) ensures equivalent performance at the same dosage (5–40% based on pigment weight (inorganic); 15–70% based on pigment weight (organic))
- Competitive pricing — 20–40% cost advantage vs. Evonik list price, with volume tier discounts available
- Reliable supply — direct from manufacturer in China, 2–4 week lead time, safety stock programs available
- Technical support — formulation assistance, application testing, and side-by-side comparison data provided
- Flexible MOQ — from 25 kg trial drums to 20-ton container loads
- Quality assurance — ISO 9001 certified, batch-to-batch consistency with full CoA
Qualification Process
- Request sample — we ship 1–5 kg free sample of our TEGO Dispers 747 W equivalent
- Lab testing — side-by-side evaluation in your formulation at equivalent dosage
- Application testing — confirm performance on your production equipment
- Qualification — full TDS, CoA, and regulatory documentation provided
- Scale up — seamless transition to production quantities
TEGO Dispers 747 W® is a registered trademark of Evonik Industries AG. SEMITECH Additives products are independently developed functional equivalents, not produced by or affiliated with Evonik.
Need a Sample or Quote?
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