Schnelle Antwort: epoxy floor coating buyers usually lose time when they compare every silicone additive as if it solves the same first problem. CHLUMIFE® 3308 should move up first when the project is clearly an epoxy-floor topcoat or self-leveling surface-control job and the team wants one route already positioned for better feel, scratch resistance, leveling, substrate wetting, pinhole prevention, surface smoothness, wear resistance, and defoaming help. CHLUMIFE® 3166 belongs earlier when the buyer needs a broader dry-feel and appearance-balance route that can support surface-tension control, substrate wettability, smoothness, scratch resistance, anti-blocking, leveling, and gloss. CHLUMIFE® 3307X should move up first when the floor already applies acceptably but the cured film still needs a more deliberate abrasion and scratch-resistance answer after film formation, especially when recoatability remains important.

That is the commercially useful split. This page is not another generic floor-coating article. It is a buyer-selection page for teams deciding which surface-additive route deserves the first sample round in epoxy floor coating work.

Why this page deserves to exist beside the broader CHLUMICRYL® branch

Longchang hat bereits Live-Seiten für CHLUMICRYL® Beschichtungs- und Druckfarbenadditive, Nivellierungsadditive, kratzfeste Zusätzeund defektgetriebene additive Auswahl. Those pages help buyers decide whether they are dealing with a leveling route, a scratch route, or another additive family.

Epoxy floor coating teams usually face a tighter question after that. They already know the project lives in the surface-control lane. The next decision is narrower: should the first screen start with a direct epoxy-floor additive, a broader dry-feel and gloss-balancing route, or a more post-cure abrasion-focused route?

That narrower decision is worth its own page because floor coatings are rarely judged by one KPI alone. Buyers are usually balancing several requirements at once:

• surface appearance and leveling,
• scratch and abrasion resistance after cure,
• feel and smoothness,
• pinhole or defoaming behavior during applicationund
• whether another coat or repair coat still has to wet and hold properly.

That is why a floor-coating-specific selection page is more useful than sending every buyer back to a broad function page.

What the current company-supported facts already separate

The current Longchang product pages already create a meaningful split:

• CHLUMIFE® 3308 is described as a Polyether-modifiziertes Polysiloxan mit better feel and scratch resistance than BD-3307. Longchang says it is especially suitable for epoxy floor coatings, supports solvent-based and solvent-free two-component systems, and says it promotes leveling, substrate wetting, pinhole prevention, surface smoothness, wear resistance, and defoaming propertiesDie empfohlene Dosierung beträgt 0,1% bis 1,0%. The current application table marks UV and solvent systems as applicable and wasserbasierte Systeme as not applicable.
• CHLUMIFE® 3166 is positioned as an additive for controlling surface tension in liquid-phase materials, with the product page stating that its most notable feature is ausgezeichnetes Trockengefühl. Longchang also supports reduced surface tension, improved substrate wettability, surface smoothness, scratch resistance, anti-blocking, leveling, gloss improvement, and prevention of Bénard vortices. The current page supports it across UV-, lösungsmittel- und wasserbasierte Systeme, mit einer empfohlenen Dosierung von 0,05% bis 1,0%, while warning that similar products can lead to pinholes, whitening, or foam-stabilizing effects.
• CHLUMIFE® 3307X is positioned as an Organisches Silikon-Nivellierungsmittel und kratzfestes Additiv designed to improve the Abriebfestigkeit und Kratzfestigkeit von Harzfilmen nach der Bildung. Longchang also supports Oberflächenglätte und Nivellierung, explicitly notes that Überlackierbarkeit hat Priorität., and recommends 0,1% bis 1,0% dosage. The product page also recommends preparing a 12.5% solution in solvent before use and marks UV and solvent systems as applicable while excluding wasserbasierte Systeme.

That difference is enough to justify a dedicated epoxy-floor selection page.

Kurzvergleichstabelle: Welche Route verdient den ersten Bildschirm?

Beobachtete Käuferpriorität	Beste erste Route	Warum es an erster Stelle steht	Hauptbeobachtungspunkt
Direct epoxy-floor surface-control work that needs feel, leveling, wetting, pinhole control, and scratch balance together	CHLUMIFE® 3308	Longchang explicitly says it is especially suitable for epoxy floor coatings and supports leveling, wetting, pinhole prevention, smoothness, wear resistance, and defoaming help	Current application table excludes water-based systems
Broader dry-feel, smoothness, gloss, anti-blocking, and scratch-control balance across more than one system window	CHLUMIFE® 3166	Longchang supports excellent dry feel plus surface-tension control, substrate wettability, smoothness, scratch resistance, anti-blocking, leveling, and gloss across UV, solvent, and water-based systems	Qualification should still watch for pinholes, whitening, or foam stabilization
Cured floor film still needs stronger abrasion and scratch resistance, but recoating should stay in view	CHLUMIFE® 3307X	Longchang positions it around abrasion and scratch resistance after film formation and explicitly says recoatability is prioritized	Not for water-based systems, and solvent pre-dilution is recommended before use

When CHLUMIFE® 3308 is the better first move

3308 should move to the front when the buyer already knows the project is a direct epoxy-floor coating job and wants one route whose public positioning already matches that application. This is the cleanest commercial separation on the current Longchang page. The product is not only presented as a general surface additive. It is explicitly described as especially suitable for epoxy floor coatings.

That matters because epoxy-floor buyers usually need more than a generic claim about scratch resistance. They need a route that can help the coating lay down properly while still protecting the finished surface. Longchang’s public page for 3308 supports exactly that mix: leveling, improved substrate wetting, pinhole prevention, surface smoothness, better wear resistance, and defoaming properties, alongside the note that it offers better feel and scratch resistance than BD-3307.

3308 deserves earlier review when:

• the project is already centered on epoxy floor coatings,
• the team wants one additive that can support appearance plus durability instead of only one of them,
• pinhole reduction and defoaming behavior matter during application, or
• the buyer wants a route that is already framed around solvent-based or solvent-free two-component systems.

The main limitation is system boundary. Longchang’s current application table supports UV and solvent systems and excludes wasserbasierte Systeme. That means 3308 is strongest when the floor-coating program genuinely lives in that non-aqueous epoxy window rather than in a water-based screening path.

When CHLUMIFE® 3166 is the better first move

3166 belongs earlier when the buyer needs a broader balancing route rather than the most application-specific epoxy-floor route. Longchang positions it around surface-tension control, and the same page says its most notable feature is ausgezeichnetes Trockengefühl. It also supports a wider bundle of surface outcomes: substrate wettability, surface smoothness, scratch resistance, anti-blocking, leveling, gloss improvement, and prevention of Bénard vortices.

That makes 3166 commercially useful when the lab is still trying to balance several top-layer priorities instead of solving one single defect. In floor coatings, that often means the buyer wants a route that can help the film look better, feel cleaner, and still hold acceptable scratch control without being locked into one narrow application story too early.

3166 deserves earlier review when:

• the buyer wants a stronger dry-feel and gloss-balance route,
• the project may still compare UV-, lösungsmittel- und wasserbasiert windows,
• anti-blocking and smoothness matter alongside scratch handling, or
• the team wants a route that can stay useful beyond one floor-coating subcase.

The caution should stay visible. Longchang notes that similar products may produce pinholes, whitening, or a stabilizing effect on foam. So 3166 is not the lazy default. It is the broader balance route when that broader balance matters enough to justify more careful qualification.

When CHLUMIFE® 3307X is the better first move

3307X becomes more relevant when the epoxy floor already applies acceptably, but the cured film still shows too much rubbing damage, abrasion marking, or scratch visibility. This is its strongest separation point. Longchang does not frame 3307X mainly as a wet-stage correction tool. It frames it as a route designed to improve the Abriebfestigkeit und Kratzfestigkeit von Harzfilmen nach der Bildung.

Das macht 3307X zur stärkeren ersten Route, wenn:

• the biggest complaint appears after cure, not only during application,
• the finished floor still needs better abrasion or scratch retention,
• recoatability remains important in the program, or
• the system is clearly UV- oder lösungsmittelbasiert rather than water-based.

The practical watchpoint is handling. Longchang recommends diluting it into a 12.5% solution with solvent before use. The current application table also excludes wasserbasierte Systeme. So this route makes the most sense when the buyer is already committed to a non-aqueous floor-coating window and wants a more deliberate post-cure durability screen.

Wie Käufer vor der Anforderung von Mustern auswählen sollten

1. Start with whether the first problem is application-stage or cured-film-stage

If the floor coating needs help during laydown, wetting, pinhole control, and surface balance, 3308 deserves much earlier attention. If the cured film is the bigger pain point, 3307X usually moves up. If the team still needs one broader balancing route, 3166 becomes more attractive.

2. Keep the system boundary visible

3308 and 3307X are not water-based routes on their current public application tables. 3166 is broader. That matters immediately if the customer line is still comparing solvent, UV, and water-based options.

3. Separate dry feel from direct epoxy-floor suitability

3166 is strong when dry feel, smoothness, gloss, and broader balance matter. 3308 is stronger when the buyer wants a route already pointed straight at epoxy floor coatings. Those are related but not identical selection jobs.

4. Do not ignore downstream recoating or repair needs

Epoxy floor systems are often judged later by maintenance, repair, or next-coat behavior. Longchang explicitly gives 3307X a recoatability advantage, so that should be screened early when it matters.

5. Keep the first lab round short

Für viele Käufer ist die sauberste erste Runde eine 3308-led direct epoxy-floor route, eins 3166-led broader balance routeund eins 3307X-led post-cure scratch route. That usually creates a faster commercial answer than screening too many nearby silicone additives at once.

Empfohlene Route nach Longchang von dieser Seite

• Direct epoxy-floor route: CHLUMIFE® 3308
• Broader dry-feel and gloss-balance route: CHLUMIFE® 3166
• Post-cure abrasion route: CHLUMIFE® 3307X
• Clusterübersicht: CHLUMICRYL® Beschichtungs- und Druckfarbenadditive
• Zugehörige Funktionsseite: Wie man Verlaufsmittel für Lacke und Druckfarben auswählt
• Zugehörige Funktionsseite: Wie man kratzfeste Additive für Beschichtungen und Tinten auswählt
• Zugehörige Fehlerseite: Netzmittel vs. Verlaufsmittel vs. Entschäumer vs. Fluortensid

FAQ

Which additive should I screen first for epoxy floor coatings?

If the project is clearly an epoxy-floor job and the team wants one route that supports feel, leveling, wetting, pinhole control, smoothness, wear resistance, and defoaming help together, 3308 deserves earlier review because Longchang explicitly says it is especially suitable for epoxy floor coatings.

When is 3166 a better first route than 3308?

3166 is a better first route when the buyer wants a broader dry-feel, smoothness, gloss, anti-blocking, and scratch-control balance, or when the program still needs a route that can travel across UV, solvent, and water-based systems.

When should 3307X move ahead of 3308?

3307X should move ahead when the floor film already applies acceptably but still needs stronger abrasion and scratch resistance after cure, especially when recoatability matters in the project.

Are these three products interchangeable?

No. Their public company-supported positioning is different enough that buyers should not treat them as drop-in substitutes. One leads with direct epoxy-floor fit, one with broader dry-feel and gloss balance, and one with post-cure abrasion resistance plus recoatability priority.

Need a tighter epoxy-floor shortlist?

If your floor-coating project is stuck between better leveling, cleaner appearance, lower defect pressure, and stronger scratch or abrasion resistance after cure, start by deciding whether the real first job is direct epoxy-floor balance, broader dry-feel and gloss control, oder post-cure durability with recoatability. That usually shows much faster whether 3308, 3166, or 3307X deserves the first sample round.