快速回答： buyers comparing CHLUMIWE® 3071, CHLUMILE® 3345， 和 CHLUMIAF® 094 为了 waterborne coatings should not treat them as interchangeable silicone additives. CHLUMIWE® 3071 belongs earlier when the first bottleneck is 基材润湿, spreading, or weak first contact on a difficult surface. CHLUMILE® 3345 should move ahead when the team needs a broader wetting-and-leveling balance instead of only a stronger wetting push. CHLUMIAF® 094 is the cleaner first route when the real pressure is foam, microbubbles， 或者 air-release defects in a waterborne system.
That is the commercially useful split. This page is not another broad waterborne-industrial overview. It is a comparison page for buyers who are already down to three realistic Longchang-supported routes and need to decide which one deserves the first sample round.
为什么这项比较值得单独成页？
Longchang already has broader application guidance for waterborne industrial coatings, plus wider function pages for 润湿添加剂, 找平添加剂， 和 消泡剂. Those pages help buyers understand the broader family logic.
This page answers a narrower and more practical B2B question: if the shortlist is already down to 3071, 3345, and 094, which one should be tested first, and why? That is a different search intent from a broad overview page. It is comparison intent, not general education intent.
It also stays inside the redirected CHLUMICRYL® 涂层和油墨添加剂 branch without drifting back into the older photoinitiator cluster.
What the company-supported evidence actually separates
The product-page evidence already gives a useful split:
- CHLUMIWE® 3071 is positioned as an organosilicone wetting agent. Longchang supports a 0.1% 至 1.0% dosage range, flexible addition during grinding, stirring, or after production, dilution with water, alcohols, alkanes, and aromatics, and use in 紫外、溶剂和水基 systems. The waterborne watchpoint is explicit: it may have a foam-stabilizing effect in water-based systems.
- CHLUMILE® 3345 is positioned directly as a wetting and leveling agent. Longchang also supports a 0.1% 至 1.0% dosage range, addition during grinding, stirring, or after production, dilution with water, alcohols, alkanes, and aromatics, and applicability in 紫外、溶剂和水基 systems. Longchang further notes that adding co-solvents such as dipropylene glycol methyl ether can enhance the effect.
- CHLUMIAF® 094 is the defoamer-first route. Longchang supports it for 仅限水基系统, with a much lower dosage band of 50 to 500 ppm, and says it should generally be diluted before use rather than dropped into the working solution as-is.
That is enough product-level separation to build a real shortlist instead of treating all three as vague “surface additives.”
Quick comparison table: when each route deserves the first screen
| Buyer priority | 3071 | 3345 | 094 |
|---|---|---|---|
| Main first-screen job | Wetting-first substrate spread and surface contact | Wetting plus leveling balance | Foam collapse and air-release control |
| Supported dosage | 0.1% 至 1.0% | 0.1% 至 1.0% | 50 to 500 ppm |
| System window | UV, solvent, water-based | UV, solvent, water-based | 仅限水性 |
| 加法逻辑 | Grinding, stirring, or after production | Grinding, stirring, or after production | Usually pre-dilute before use |
| Best use when | The coating is not spreading or wetting the substrate cleanly | The coating wets but still needs smoother, more even laydown | Foam, microbubbles, or air release are ruining the film |
| 主要观察点 | May stabilize foam in water-based systems | Still not a substitute for a true defoamer if bubbles are the main defect | Not a substitute for a real wetting or leveling route |
When CHLUMIWE® 3071 is the better first move
3071 should move first when the waterborne coating is failing at the very first contact step. If the formula pulls back, spreads too slowly, or does not wet the substrate cleanly enough to judge the rest of the package, a wetting-first route is usually more informative than jumping immediately to a broader balancing additive.
That is what makes 3071 commercially useful. Longchang supports it as a polyether-modified polysiloxane wetting agent with a low-surface-tension profile, broad dilution flexibility, and multiple addition paths. The key practical benefit for the buyer is not that it can go into many systems. The key benefit is that it provides a clean benchmark for substrate-contact problems.
3071 is the stronger first route when:
- the waterborne coating is still struggling to spread over a harder substrate,
- the team needs to learn whether the problem is really wetting failure before adding more complexity,
- the lab wants a route that can be screened early during grinding or after production, or
- the coating project spans more than one future system window, even though the current trial is waterborne.
The most important watchpoint is also clear. Longchang says 3071 may stabilize foam in water-based systems. So if wetting improves but bubble pressure rises, that does not mean 3071 failed. It means the buyer may have solved one problem while exposing another.
When CHLUMILE® 3345 is the better first move
3345 deserves the earlier screen when the coating team no longer needs only stronger wetting. It becomes the better benchmark when the project needs a more balanced wetting-and-leveling result. That matters in many waterborne finishes where the substrate can already be wetted reasonably well, but the final laydown still looks less even, less calm, or less commercially acceptable than the buyer wants.
Longchang’s supported evidence is more specific here than with a generic surfactant. 3345 is named and positioned directly as a wetting and leveling agent. The company page keeps the same 0.1% 至 1.0% dosage window and broad system applicability, but also adds the practical note that co-solvents such as dipropylene glycol methyl ether can enhance the effect.
3345 is usually the better first route when:
- the coating wets, but the film still needs smoother and more even laydown,
- the buyer wants to reduce the gap between initial substrate contact and final film appearance,
- the team wants a broader surface-balance benchmark before moving to more specialized additives, or
- development work already includes co-solvent adjustment and leveling balance, not just raw wetting correction.
In short, 3345 is not simply “3071 but a little different.” It is the more logical first screen when the decision is no longer only about getting the coating onto the surface, but about getting it to settle there better.
When CHLUMIAF® 094 is the better first move
094 should move to the front when the coating already has a workable wetting route, but the film is still being limited by foam, microbubbles， 或者 poor air release. In that case, testing another wetting additive first can waste time because the real defect is not in initial spread. It is in gas management inside the waterborne system.
Longchang supports 094 as a waterborne defoamer with a very different operating pattern from 3071 or 3345. The dosage is not 0.1% to 1.0%, but 50 to 500 ppm. The system window is not broad, but 仅水性. And the use method is not casual direct addition, because Longchang says the defoamer should generally be diluted before use.
094 is the stronger first route when:
- the waterborne coating is already showing persistent bubbles, pinholes, or microfoam,
- the lab needs a true defoamer benchmark instead of another surface-wetting trial,
- the process window is clearly waterborne and not a mixed-system development project, or
- air release is blocking film quality more than substrate contact is.
094 should not be used as a substitute for wetting or leveling logic. It is the cleaner choice when the buyer already knows the real problem is foam behavior, not simply surface contact.
How buyers should choose before the first sample round
1. Identify where the defect starts
If the coating fails when it first meets the substrate, start with 3071. If it wets but still does not settle or level the way the buyer wants, move first to 3345. If the film is being damaged by bubbles or air release, start with 094.
2. Do not compare dosage numbers out of context
3071 and 3345 both sit in the 0.1% 至 1.0% range. 094 sits in a ppm-level range. That does not make 094 “stronger” in a generic sense. It means it is solving a different problem class.
3. Keep the addition method in the decision
3071 and 3345 can be added during grinding, stirring, or after production. 094 usually needs a pre-dilution step. Buyers should include that process handling difference in the shortlist, not treat it as a minor lab detail.
4. Use waterborne logic carefully
One of the most important distinctions in this comparison is that 3071 may stabilize foam in water-based systems, while 094 exists specifically to solve foam trouble in water-based systems. That means the first-screen sequence matters. Solving wetting first can sometimes reveal the need for a separate foam-control step.
5. Keep the page type honest
This is not a broad “best additive for waterborne coatings” page. It is a shortlist article for buyers already deciding between three specific Longchang routes. That narrower comparison intent is exactly why this page can coexist cleanly with broader application and defect pages.
Recommended Longchang path from this comparison
- 先弄湿路线： CHLUMIWE® 3071
- Wetting-plus-leveling route: CHLUMILE® 3345
- Waterborne defoamer route: CHLUMIAF® 094
- 相关应用页面： How to Choose Surface Additives for Waterborne Industrial Coatings
- Related cluster page: CHLUMICRYL® 涂层和油墨添加剂
- 相关功能页面： 如何选择涂料和油墨的润湿助剂
- 相关功能页面： 如何选择涂料和油墨的流平助剂
- 相关功能页面： 如何选择涂料和油墨用消泡剂
常见问题
Which product should I test first if the coating is not spreading over the substrate?
Start with CHLUMIWE® 3071. It is the cleaner wetting-first benchmark when the real problem is substrate contact and spreading.
When should 3345 move ahead of 3071?
3345 should move ahead when the coating already wets reasonably well, but still needs smoother and more even laydown. It is the more balanced wetting-plus-leveling route.
Why is 094 not compared like the other two on dosage alone?
Because 094 is not another general wetting additive. It is a waterborne defoamer with a different job, a different use method, and a much lower ppm-level dosage range.
Can 3071 and 094 both matter in the same formulation project?
Yes. A buyer may use 3071 to improve wetting and then discover that foam management still needs a separate solution. The key is not to confuse the two jobs in the first screen.
Is this page replacing the broader waterborne-industrial article?
No. The broader application page stays useful. This page is narrower and serves the buyer who is already comparing three specific additive routes.
Need a tighter first shortlist?
If your waterborne coating project is stuck between poor wetting, uneven laydown, and bubble-related film defects, stop testing these three products as if they solve the same first problem. Separate wetting, leveling balance， 和 foam control first. That usually makes the next CHLUMICRYL® sample decision much faster.