Réponse rapide : acheteurs comparant FS-D9013R, FS-D8950BRet FS-D8980 usually get the cleanest shortlist when they separate three different first-screen jobs instead of treating every fluorocarbon additive as the same surface-control tool. FS-D9013R should move first when the real problem is persistent anti-cratering pressure, orange peel in solvent-based UV cure, ou un silicone-restricted UV primer route where recoating still matters. FS-D8950BR becomes the stronger first route when the buyer wants compatibilité du vernis, anti-cratérisation, and a cleaner fit for large-area spraying or multi-color wet-spray workflows. FS-D8980 belongs earlier when the system is more about bon nivellement des ondes longues, prévention de la peau d'orangeet spray-flow stability than about the most aggressive crater-fix route.
That is the commercially useful split. These three Longchang products all sit inside solvent-based UV surface-control work, but they do not solve the same buyer problem first.
Pourquoi cette comparaison mérite sa propre page
Longchang possède déjà des pages plus larges pour fluorine surfactants for surface control, UV varnish surface control, Écoulement et nivellement du revêtement UVet sélection additive basée sur les défauts. But buyers still reach a narrower decision point after those pages: which fluorocarbon additive should be sampled first for this solvent-based UV varnish or primer job?
That is different from asking whether a fluorine route is needed at all. Once the team has already decided the problem sits inside the fluorocarbon lane, the next commercial question is whether the job is mainly about anti-cratering and silicone restriction, spray-application robustness with anti-cratering, ou leveling and orange-peel control without the same crater priority.
What these three products have in common, and where they split
Longchang’s current product pages place all three products in polymérisation UV à base de solvant and describe them as fluorocarbon copolymer solutions. All three are tied to bon nivellement des ondes longues et prévention de la peau d'orange. That shared positioning is exactly why buyers can waste time if they treat them as interchangeable.
The split starts when the team checks the narrower supported details:
- FS-D9013R adds explicit support for excellent anti-cratérisation, vitesse de nivellement rapide, revêtement, and use as an anti-shrinkage additive where silicone additives cannot be used, plus an important warning about UV vacuum electroplating primer.
- FS-D8950BR adds explicit support for bonne compatibilité avec le vernis, excellent anti-cratérisation, adéquation à pulvérisation à grande échelle, and control of color channeling between colors after wet spraying and drying.
- FS-D8980 keeps the stronger emphasis on bonne compatibilité avec le vernis, bon nivellement des ondes longues, prévention de la peau d'orangeet multi-color spray-flow control, but without the same direct anti-cratering claim found on 9013R and 8950BR.
That difference is enough to justify a real comparison page rather than forcing buyers back into a broad additive overview.
Quick comparison table: FS-D9013R vs FS-D8950BR vs FS-D8980
| Facteur d'achat | FS-D9013R | FS-D8950BR | FS-D8980 |
|---|---|---|---|
| Main supported system | Durcissement UV Ã base de solvant | Durcissement UV Ã base de solvant | Durcissement UV Ã base de solvant |
| Qu'est-ce qui la fait avancer en premier ? | Persistent anti-cratering, fast leveling, silicone-free UV primer logic, recoating-sensitive work | Varnish compatibility plus anti-cratering in large-area or multi-color spraying | Long-wave leveling and orange-peel prevention when crater pressure is less dominant |
| Direct anti-cratering support | Yes, explicitly excellent anti-cratering | Yes, explicitly excellent anti-cratering | Not emphasized the same way on the current page |
| Spray-process angle | Useful in common UV primer work, but with a specific recoating limitation | Suitable for large-area spraying and reducing color channeling between colors | Suitable for large-area spraying and reducing color channeling between colors |
| Suggested addition | 0.1-1.0% | 0.1-1.0% | 0.05-0.8% |
| Point de surveillance important | Not applicable in UV vacuum electroplating primer because it will affect recoating | No foam inhibition, so do not confuse it with a defoamer route | No foam inhibition, and the page does not position it as the strongest crater-fix route |
When FS-D9013R is the better fit
FS-D9013R should move to the front when the surface problem is still refusing to settle after more ordinary varnish-leveling adjustments, especially in apprêt UV courant work where anti-cratérisation et revêtement both matter. Longchang’s current product page supports bon nivellement des ondes longues, prévention de la peau d'orange, excellent anti-cratérisation, vitesse de nivellement rapideet résistance aux hautes températures. The same page also says it pourrait être un nouveau revêtement et est souvent utilisé comme un additif anti-retrait dans les systèmes où les additifs silicones ne peuvent pas être utilisés.
That makes 9013R the strongest first route when:
- the project is inside a solvent-based UV primer or varnish window
- the panel still shows persistent crater pressure or anti-shrinkage problems
- L'équipe a besoin d'un itinéraire pris en charge pour à teneur réduite en silicone systems
- recoating still matters in the supported application window
The caution matters just as much as the strengths. Longchang explicitly says 9013R is useful in common UV primer anti-cratering work without affecting recoating, but also says it is non applicable dans l'apprêt de galvanoplastie sous vide UV because it will affect recoating. That limitation is commercially important and should be screened early, not after scale-up.
When FS-D8950BR is the better fit
FS-D8950BR becomes more attractive when the buyer wants a fluorocarbon route that still keeps compatibilité du vernis visible while adding excellent anti-cratérisation and a stronger large-area spray story. Longchang’s current page supports bonne compatibilité avec le vernis, bon nivellement des ondes longues, prévention de la peau d'orangeet excellent anti-cratérisation. It also says the product is convient à la pulvérisation sur de grandes surfaces and can help prevent and eliminate color channeling between colors after wet spraying and drying.
That pushes 8950BR ahead when:
- the project is closer to a spray-finish varnish or decorative UV coating job
- the buyer still needs anti-cratérisation, but does not need the same silicone-restricted primer logic as 9013R
- the production route includes pulvérisation à grande échelle ou multi-color wet-spray sequencing
- the team wants a supported fluorocarbon route that is explicit about compatibilité du vernis
Longchang also says 8950BR has aucune inhibition de la mousse. That is a useful reminder that buyers should not expect this route to solve an air-management problem that actually belongs in a defoamer screen.
When FS-D8980 is the better fit
FS-D8980 belongs earlier when the first question is more about clean leveling and spray-flow behavior than about the strongest crater-fix route. Longchang’s current page supports bonne compatibilité avec le vernis, bon nivellement des ondes longues, prévention de la peau d'orange, adéquation à pulvérisation à grande échelle, and reducing color channeling between colors after wet spraying and drying. The page also gives a slightly lower suggested addition range of 0.05-0.8%, which can be useful when buyers want a narrower first dose screen.
That makes 8980 a cleaner first route when:
- the team mainly needs spray-flow uniformity et prévention de la peau d'orange
- good compatibilité du vernis still matters
- the panel is not clearly dominated by the same crater pressure that points harder toward 9013R or 8950BR
- the buyer wants to start with a lower-use fluorocarbon route before escalating
In short, 8980 is usually the more defensible first screen when the problem still looks like a leveling-and-spray-behavior issue rather than a crater-heavy rescue job.
Comment les acheteurs doivent choisir avant de demander des échantillons
1. Ask whether the real problem is crater-heavy or leveling-heavy
If the panel is still dominated by anti-cratering pressure, start by comparing 9013R and 8950BR more seriously. If the panel is mainly about flow, orange peel, and spray uniformity, 8980 deserves earlier attention.
2. Keep the process window visible
All three products sit in solvent-based UV cure, but the job type still matters. UV primer, decorative varnish, and large-area wet spray do not always deserve the same first sample.
3. Do not ignore recoating reality
9013R has a strong supported place in common UV primer work, but Longchang’s UV vacuum electroplating primer warning is real and should be treated as a hard screen.
4. Separate foam control from surface-control chemistry
8950BR and 8980 both note no foam inhibition. If the actual defect is trapped air or microbubble behavior, move that discussion back toward a defoamer route instead of asking a fluorocarbon additive to do the wrong job.
5. Start with the minimum practical dose window
Longchang’s supported addition ranges are useful for tightening the first lab round. Buyers usually learn faster from a controlled low-to-mid dose screen than from jumping straight to the top of the range.
Itinéraire recommandé pour Longchang à partir de cette page
- Silicone-free UV primer and anti-cratering route: FS-D9013R
- Varnish-compatible anti-cratering and large-area spray route: FS-D8950BR
- Leveling and spray-flow route: FS-D8980
- Page de comparaison associée : Additif mouillant vs additif de nivellement vs antimousse vs tensioactif fluoré
- Page de fonction associée : Comment choisir les tensioactifs fluorés pour le contrôle de surface des revêtements et des encres
- Page de l'application associée : Additifs de contrôle de surface pour vernis UV et systèmes de surimpression
- Page de l'application associée : Comment améliorer la fluidité et le nivellement des revêtements UV
- Aperçu du cluster : CHLUMICRYL® Additifs pour revêtements et encres
FAQ
Which product is the best first screen for UV primer anti-cratering?
When the project is a supported common UV primer route and recoating matters, FS-D9013R is often the strongest first screen because Longchang explicitly positions it around anti-cratering, fast leveling, and silicone-restricted primer logic. But it should not be used for UV vacuum electroplating primer.
When should buyers start with FS-D8950BR instead of FS-D9013R?
Start with FS-D8950BR earlier when varnish compatibility, large-area spraying, and anti-cratering all matter, but the project does not specifically depend on 9013R’s silicone-free UV primer positioning.
When does FS-D8980 make more sense than the other two?
FS-D8980 makes more sense when the first problem is mostly leveling, orange-peel prevention, and spray-flow behavior, and the panel is not clearly calling for the strongest crater-control route.
Ces trois produits sont-ils interchangeables ?
No. They share a solvent-based UV fluorocarbon base and overlap in leveling language, but their current Longchang-supported roles are different enough that buyers should not treat them as plug-and-play substitutes.
Besoin d'une première liste plus restreinte ?
If your UV varnish or UV primer team is stuck between crater control, spray-flow stability, orange-peel prevention, and recoating limits, define the real bottleneck first: silicone-restricted anti-cratering, varnish-compatible anti-cratering in spraying, ou leveling-led spray uniformity. That usually points to the right Longchang fluorocarbon route much faster than screening all three as if they solved the same problem.