빠른 답변: if a 용제 기반 코팅 is showing floating color 또는 flowering, buyers should usually screen the dispersant route before treating it as only a letdown or spray-setting problem. CHLUMICRYL® DP-D241R is the strongest first screen when the defect appears in multi-pigment primer systems containing carbon black, bentonite, matting powder, or filler pigments and the job also needs viscosity reduction. CHLUMICRYL® DP-D200R belongs earlier when the project is broader and the buyer also needs dispersion efficiency, color intensity, transparency, hiding power, or organic-bentonite-slurry preparation. CHLUMICRYL® DP-D262R is the more targeted route when the real job is carbon-black color spreading and gloss in two-component or thermosetting solvent systems.
이 페이지는 더 넓은 페이지보다 폭이 좁습니다. CHLUMICRYL® dispersants guide. It is for buyers and formulators trying to decide which dispersant to screen first when color separation shows up in the film.
What floating color and flowering usually mean in practice
In practical coating language, buyers often use floating color 및 flowering for films where the pigment package no longer stays visually uniform during drying. The exact appearance varies by system, but the commercial problem is usually the same: the final film loses color uniformity, gloss consistency, or appearance stability. In solvent-based industrial coatings, that often shows up faster when the pigment package is complex, the grind is carrying a lot of carbon black or filler, or the formulation is already fighting viscosity pressure.
That is why it is risky to treat the defect only as a spray issue or only as a small letdown adjustment. If the pigment wetting and dispersion route is wrong, the film can keep separating even after minor process edits.
Side-by-side: which CHLUMICRYL dispersant should you screen first?
| Route | Screen first when | Company-supported reasons | 주요 감시 지점 |
|---|---|---|---|
| DP-D241R | Multi-pigment primers show floating color, flowering, and viscosity pressure | Directly positioned for primer systems containing carbon black, bentonite, matting powder, light calcium carbonate, superfine zinc phosphate, barium sulfate, mica powder, titanium dioxide, and talc. Also directly described as reducing floating color and flowering in multi-pigment systems. | Solvent-based route, add to grinding material before pigment dispersion. |
| DP-D200R | You need broader dispersion efficiency plus stronger color intensity or bentonite-slurry support | Supported for excellent dispersion efficiency and viscosity reduction, higher gloss, enhanced color intensity, increased transparency and hiding power, and suitability for preparing organic bentonite slurries. | Best framed as a broader solvent-based industrial route, not the most defect-specific floating-color claim. |
| DP-D262R | The system is carbon-black-heavy and the buyer cares most about color spreading and gloss in 2K or thermoset solvent systems | Supported for very good carbon-black color spreading and gloss, with use in two-component and thermosetting systems. | Not applicable to thermoplastic acrylic and epoxy-floor coating systems. |
When DP-D241R is the best first screen
DP-D241R is the most direct route on this page when the buyer complaint is specifically about floating color, flowering, and difficult primer-side viscosity control happening together.
Longchang’s supported product page gives it several unusually useful signals for this exact problem:
- It is positioned for 용매 기반 시스템.
- It has excellent viscosity reduction ability in primer systems containing carbon black, bentonite, matting powder, light calcium carbonate, superfine zinc phosphate, barium sulfate, mica powder, titanium dioxide, and talc.
- It is described as giving good wetting and dispersion of pigments.
- It can improve the coloring strength of organic pigments.
- It can reduce the floating color and flowering phenomenon of multi-pigment systems.
- It is also framed as a way to reduce thinner use and help meet VOC-emission requirements.
That combination matters because many floating-color complaints are not isolated appearance problems. They often sit inside a larger formulation situation where the primer is carrying multiple pigments and fillers, the grind is heavy, and the formulator is already fighting viscosity or thinner demand. In that kind of system, a dispersant that directly addresses both color-separation risk and viscosity pressure belongs early in the screen.
Supported handling guidance is also clear: add the dispersant to the grinding material, stir well, and then add pigment for grinding and dispersion. Recommended dosage guidance on the product page is:
- Inorganic pigments: 1 to 10%
- Organic pigments: 20 to 40%
- Carbon black: 30 to 100%
When DP-D200R is the better route
DP-D200R is the stronger screen when the buyer problem is broader than one film defect and the commercial target also includes dispersion efficiency, color strength, transparency, hiding power, or slurry preparation.
Longchang-supported product facts position DP-D200R as a solvent-based dispersant with:
- excellent dispersion efficiency and viscosity reduction
- high gloss
- enhanced color intensity
- increased transparency and hiding power
- strong suitability for the preparation of organic bentonite slurries
- explicit recommendation for architectural coatings, industrial coatings, and anti-corrosion coating systems
That makes DP-D200R useful when floating color or flowering is appearing inside a larger industrial-formulation problem rather than as a single isolated visual complaint. If the project team is also trying to improve grind efficiency, color development, and broader formulation utility across industrial coating work, DP-D200R can be the better first commercial screen.
Its supported usage direction is the same basic discipline as the other dispersants here: add it to the grinding material first, then introduce the pigment for grinding and dispersion.
When DP-D262R belongs earlier
DP-D262R is the tighter route when the buyer is not simply asking, “How do I stop color separation?” but more specifically, “Which dispersant should I screen in a carbon-black-heavy two-component or thermosetting solvent system where color spreading and gloss matter?”
Longchang-supported facts for DP-D262R include:
- solvent-based-system fit
- a polymeric block copolymer solution with pigment-affinity groups
- an explanation that the copolymer creates an obstruction layer that reduces attraction between pigment particles and helps deliver dispersion stability
- very good carbon-black color spreading and gloss
- use in two-component and thermosetting systems
- an explicit boundary that it is not applicable to thermoplastic acrylic and epoxy-floor coating systems
That system boundary is commercially important. If the project really is a 2K or thermosetting solvent formulation built around carbon-black appearance and gloss targets, DP-D262R can be a cleaner screen than a broader “one dispersant for everything” approach. But if the buyer is working in thermoplastic acrylic, DP-D262R should not be the first route here.
Supported dosage guidance on the product page is:
- Inorganic pigments: 1 to 10%
- Organic pigments: 20 to 40%
- Carbon black: 30 to 100%
구매자는 이 세 가지 경로 중에서 어떻게 선택해야 할까요?
A practical screen usually starts with the first real bottleneck, not the broadest product description.
- Choose DP-D241R first when the project is a multi-pigment solvent-based primer and the defect complaint includes floating color, flowering, high viscosity, or heavy filler and carbon-black loading.
- Choose DP-D200R first when the project team also needs broader industrial dispersion value, stronger color intensity, better hiding-power support, or organic-bentonite-slurry preparation in architectural, industrial, or anti-corrosion work.
- Choose DP-D262R first when the system is specifically a carbon-black-oriented 2K or thermosetting solvent formulation where color spreading and gloss performance are the higher-priority screen.
If the buyer question is less about defect diagnosis and more about broader solvent-based pigment dispersion paths, also review the existing comparison pages for DP-D241R vs DP-D2641R vs DP-D265R 및 DP-D200R vs DP-D262R vs DP-D265R.
Three checks to make before changing the whole formula
- Check the pigment package first. A carbon-black-rich primer, a bentonite-containing grind, and a simpler high-gloss system are not the same dispersant job.
- Check the resin-system boundary. DP-D262R is supported for two-component and thermosetting systems, but not for thermoplastic acrylic or epoxy-floor systems.
- Check the addition stage. All three routes here are supported as grinding-stage dispersants, so screening them too late can blur the result.
자주 묻는 질문
Is floating color always a dispersant problem?
No. Drying rate, solvent balance, pigment package, and process conditions can all contribute. But when the coating is solvent-based and the complaint is tied to multi-pigment instability, poor color uniformity, or difficult grind viscosity, the dispersant route is usually one of the first screens worth testing.
Which option here is the most direct anti-floating-color choice?
DP-D241R. It is the only product on this page with direct company-supported language that it can reduce floating color and flowering in multi-pigment systems.
Which option is stronger for carbon-black gloss in 2K or thermoset systems?
DP-D262R, because its company-supported positioning directly highlights carbon-black color spreading and gloss in two-component and thermosetting systems.
Which option is broader for industrial coatings work?
DP-D200R, because the product page explicitly supports architectural, industrial, and anti-corrosion coating systems while also highlighting color intensity, transparency, hiding power, and organic-bentonite-slurry preparation.
Recommended next step
If your current problem is floating color or flowering in a solvent-based coating, start by screening the dispersant against the real pigment package instead of treating all appearance defects as one category. For direct multi-pigment defect control, start with DP-D241R. For broader industrial dispersion work, review DP-D200R. For carbon-black gloss work in 2K or thermosetting solvent systems, check DP-D262R.