Jawaban singkat: if your team is building a matte paste instead of only adjusting a finished coating, the better first screen is usually the dispersant that matches the real paste job. CHLUMICRYL® DP-D242 belongs first when the target is a resin-free matting paste and the team also wants help reducing floating color and flowering in a multi-pigment system. CHLUMICRYL® DP-D2608R is the cleaner route when matte powder and inorganic fillers need better dispersion, better stability, and stronger compatibility across a wider filler package. CHLUMICRYL® DP-D2609R should move earlier when the paste is a high-concentration matte route built around matte powder, glass powder, or ultra-fine talc and the buyer cares about viscosity reduction plus gloss reduction from directional alignment.
That is a different buyer question from the broader matting-powder dispersant page. This page is for buyers deciding how to build a workable matte paste concentrate, not only how to improve one finished solvent-based coating grind.
Why matte-paste selection deserves its own page
Matte paste projects usually fail for a narrower set of reasons than a general coating formulation project. The lab may already know it wants lower gloss, but the real screening pressure often sits in one of these places:
- the paste must stay resin-free or low-binder and still disperse cleanly,
- matte powder must stay stable together with inorganic fillers,
- the concentrate needs stronger viscosity reduction at high solids, or
- the team wants directional alignment that helps cut gloss more efficiently.
That is why a generic “use a dispersant for matting powder” answer is often weak. Buyers normally need to know which route is the better first lab trial for the actual paste architecture they are running.
General industry practice around matte pastes commonly treats viscosity build, filler stability, and gloss-control efficiency as separate screening points. The structure below keeps that educational framing conservative and uses company-supported facts for the actual CHLUMICRYL® product claims.
Quick comparison, which CHLUMICRYL route should you screen first?
| Prioritas pembeli yang diamati | Rute pertama terbaik | Mengapa ini harus didahulukan? | Titik pengawasan utama |
|---|---|---|---|
| Resin-free matting paste plus concern about multi-pigment stability | DP-D242 | Longchang supports resin-free matting paste fit, good pigment wetting and dispersion, improved organic-pigment coloring strength, viscosity reduction for organic bentonite and matting powder, and reduced floating color and flowering in multi-pigment systems. | Use when the paste job includes a real pigment-dispersion question, not only filler alignment. |
| Matte powder and inorganic filler stability matter more than only one matting powder | DP-D2608R | Longchang supports excellent viscosity reduction for matte powder and inorganic filler, improved dispersion and stability, good directional alignment, and broad compatibility with most matte powder and inorganic fillers because of its alkaline pigment-affinity group. | Best when the project behaves like a matte-powder-plus-filler compatibility problem. |
| High-concentration matte paste with matte powder, glass powder, or ultra-fine talc | DP-D2609R | Longchang directly supports high-concentration matte paste production, excellent viscosity reduction for matte powder, glass powder, and ultra-fine talc, plus directional alignment that effectively reduces gloss. | If used in 2K PU systems, Longchang says service life and drying speed should be evaluated. |
When DP-D242 is the better first move
DP-D242 deserves the first screen when the buyer is not only making a matte paste, but making one that still behaves like a real pigment-dispersion problem. This is the strongest route here for a resin-free matting paste decision because Longchang directly supports it as especially suitable for resin-free matting paste.
The same product page also separates DP-D242 in several useful ways:
- solvent-based and UV-curable applicability,
- good wetting and dispersion of pigments,
- improved coloring strength when dispersing organic pigments,
- good viscosity reduction for organic bentonite and matting powder,
- reduced floating color and flowering in multi-pigment systems.
That cluster matters when the paste is expected to do more than lower gloss. If the matte concentrate is feeding a colored or multi-pigment system and the lab is worried that the paste could create color separation or an unstable appearance later, DP-D242 is a stronger first benchmark than a route chosen only for inorganic filler alignment.
Supported handling note: add the dispersant to the grinding material first, then add pigment for grinding and dispersion.
When DP-D2608R is the better first move
DP-D2608R belongs earlier when the matte paste behaves more like a matte-powder-and-inorganic-filler compatibility job. This is the cleaner screen when the buyer wants one route that directly addresses both viscosity reduction and stability across a broader filler package.
Longchang supports DP-D2608R with these useful decision signals:
- solvent-based and UV-curable applicability,
- excellent viscosity reduction for matte powder and inorganic filler,
- improved dispersion and stability of matte powder and filler,
- good directional alignment of matte powder and effective gloss reduction,
- compatibility with most matte powder and other inorganic fillers due to its alkaline pigment-affinity group.
This makes DP-D2608R a good first route when the real pain point is not resin-free architecture by itself, but whether the paste can stay uniform and workable across a practical mineral package. It is also the cleaner option when the team expects the same matte paste platform to touch more than one inorganic filler combination.
Supported dosage: 3% to 15% for matte powder in supplied-additive form.
When DP-D2609R is the better first move
DP-D2609R should move to the front when the matte paste is intentionally high in concentration and the formulator wants a direct route for matte powder, glass powder, or ultra-fine talc. Among the three products on this page, it has the clearest company-supported fit for a high-concentration matte paste path.
Longchang supports DP-D2609R with:
- solvent-based and UV-curing applicability,
- excellent viscosity reduction for matte powder, glass powder, and ultra-fine talc,
- use in the production of high-concentration matte paste,
- good directional alignment effect on matte powder,
- effective gloss reduction.
That makes DP-D2609R a strong first screen when the buyer is pushing concentration and still needs the paste to stay processable. It is especially useful when the project is not only about matte silica, but about a more mineral-heavy package that includes glass powder or ultra-fine talc.
Important boundary: Longchang explicitly says that in 2K PU systems, the effect on service life and drying speed should be evaluated rather than assumed.
Supported dosage: 2% to 20% for matting powder in supplied-additive form.
How buyers should choose between the three routes
A practical shortlist usually becomes clearer if the buyer asks one question first: what is the first failure mode of the matte paste?
- If the answer is resin-free paste behavior plus multi-pigment stability, start with DP-D242.
- If the answer is matte powder plus inorganic filler dispersion and stability, start with DP-D2608R.
- If the answer is high-concentration matte paste with strong viscosity pressure and gloss-cutting demand, start with DP-D2609R.
That screening logic is commercially more useful than ranking one product as “best” in every matte system. Matte-paste concentrates are usually chosen by process fit and failure mode, not only by one headline performance claim.
Rekomendasi jalur produk Longchang
- CHLUMICRYL® DP-D242 for resin-free matting paste and multi-pigment control pressure.
- CHLUMICRYL® DP-D2608R for matte powder plus inorganic-filler compatibility and stability.
- CHLUMICRYL® DP-D2609R for high-concentration matte paste, glass powder, and ultra-fine talc routes.
- Broader CHLUMICRYL® dispersants guide for buyers still deciding at category level.
- Matting-powder dispersant selection page for teams working closer to finished solvent-based coating grinds than paste concentrates.
PERTANYAAN YANG SERING DIAJUKAN
Is this page the same as choosing a dispersant for matting powder in a finished coating?
No. This page is narrower. It focuses on matte-paste concentrate decisions, especially resin-free or high-concentration routes, instead of only finished-coating grind behavior.
Which route is the strongest for resin-free matting paste?
Based on current company-supported facts, DP-D242 is the strongest direct first screen because Longchang explicitly says it is especially suitable for resin-free matting paste.
Which route is stronger when inorganic fillers are part of the paste platform?
DP-D2608R is the cleaner first benchmark because Longchang directly supports matte powder plus inorganic-filler viscosity reduction, stability, and broad compatibility.
Which route is most direct for high-concentration matte paste?
DP-D2609R. Longchang explicitly says it can be used in the production of high-concentration matte paste and supports matte powder, glass powder, and ultra-fine talc with strong viscosity reduction.
What should buyers watch in 2K PU systems?
For DP-D2609R, Longchang says the effect on service life and drying speed should be evaluated in 2K PU systems rather than assumed.
Langkah selanjutnya
If your lab is still broad and category-level, start from the CHLUMICRYL® dispersants overview. If the project is already clearly a matte-paste job, shortlist DP-D242, DP-D2608R, and DP-D2609R against your actual paste architecture instead of treating every matte system as the same screening problem.