快速回答： 为了 UV inks and overprint varnishes that need release-coating or anti-sticking control最简洁的第一份候选名单通常以……开头 CHLUMIAG® 2750 when the job is a reactive UV reverse-varnish route and buyers want surface smoothness plus more permanent fixation in the cured film, CHLUMIAG® 3501 什么时候 printing-ink, overprint-varnish, and release-coating compatibility is the first decision driver, and CHLUMIAG® 3565 when the program needs an anti-sticking and peeling-aid route with broader UV, solvent, and water-based reach, but the lab can control its stated pinhole-risk watchpoint.
That is the useful buyer split. The real decision is not just which additive makes the surface slip more easily. It is whether the project needs a reactive UV route for reverse varnish and more permanent surface fixation, a route clearly positioned for inks, OPV, and release coatings， 或者 a broader anti-sticking route that needs tighter process discipline.
为什么此页面值得在 CHLUMICRYL® 分支中拥有自己的位置
龙昌已经有了更宽泛的页面 CHLUMICRYL®涂料和油墨添加剂, surface-control additives for UV varnishes, 防堵塞添加剂， 和 缺陷驱动的添加剂选择.
This page answers a narrower B2B question that those pages do not fully isolate: if the formulation is a UV ink or overprint varnish and the buyer needs release behavior, cleaner anti-sticking, or easier film separation, which additive route should be screened first?
That narrower application page is worth publishing because release-oriented print and varnish work often sits between several nearby additive jobs. Buyers are not only asking for leveling or anti-blocking in the abstract. They are usually balancing release behavior, print-side compatibility, 表面光滑度, stacking or contact separation， 和 risk of new film defects.
What buyers are usually trying to fix in release-coating and anti-sticking work
In practical UV ink and overprint-varnish programs, release or anti-sticking complaints often show up as one of these downstream problems:
- finished sheets or coated parts separate poorly after contact or stacking
- a reverse-varnish layer needs smoother release behavior without losing cured-film discipline
- an overprint varnish needs more controlled surface slip and easier handling
- the team wants an anti-sticking route, but does not want to choose a broader additive family blindly
General industry practice usually treats release and anti-sticking issues as finished-film handling and surface-energy control problems, not just liquid-stage flow questions. That is why a release-coating application page can sit cleanly inside the CHLUMICRYL® branch without collapsing into the already-live broad leveling or anti-blocking pages.
Quick comparison table: CHLUMIAG® 2750 vs 3501 vs 3565
| 购买因素 | CHLUMIAG® 2750 | CHLUMIAG® 3501 | CHLUMIAG® 3565 |
|---|---|---|---|
| 在当前龙昌页面上的主要角色 | Reactive-acrylic UV surface-control route from the 2750/2760/2780/2505 family | Acrylic-modified silicone oil positioned for printing inks, inkjet inks, screen inks, wood coatings, overprint varnishes, release coatings, and anti-sticking agents | Organosilicon surfactant and leveling route also positioned as an anti-sticking and peeling aid |
| Best-fit first screen | Reverse-varnish and reactive UV surface-control work | Application compatibility across inks, OPV, and release-coating programs | Anti-sticking route where broader system flexibility matters |
| Supported system language | Suitable for solvent-free UV radiation-curing systems, solvent-based UV coatings, and other acrylic-resin systems | Current product-page positioning centers on print and coating applications rather than one narrow system lane | Supported in UV, solvent, and water-based systems |
| 重要观察点 | The family page covers several nearby variants, so buyers should not assume every subgrade serves the same job | Application breadth is the first reason to shortlist it, so lab teams should still confirm the exact release job they need | Add before the curing agent, stir thoroughly, and screen the stated pinhole risk before production |
| 为什么买家首先选择它 | They want a reactive route that crosslinks into the cured network and is described as more suitable for reverse varnish | They want a route already positioned around inks, OPV, release coatings, and anti-sticking | They want anti-sticking plus broader handling flexibility, and can manage a stricter process screen |
When CHLUMIAG® 2750 is the better first screen
CHLUMIAG® 2750 should move first when the buyer wants a reactive UV route rather than a purely application-labeled shortcut. The current Longchang family page states that the line contains reactive acrylic functional groups， 是 suitable for radiation-curing systems， 和 crosslinks within the polymer network structure, which means the additive is described as becoming more permanently fixed at the coating surface after cure.
The same page also highlights excellent leveling, 表面光滑度， 和 tape resistance, and says the family is suitable for solvent-free UV radiation-curing systems, solvent-based UV coatings， 和 other acrylic-resin systems. Most importantly for this page angle, the company text says 2750 is more suitable for reverse varnish.
- 最佳匹配： reverse-varnish or release-oriented UV work where a more reactive cured-film route is the main attraction
- 主要优势： the company-supported story is about reactive fixation, smoothness, and reverse-varnish suitability, not just generic slip
- 主要观察点： the page is a family page that also includes 2760, 2780, and 2505, so buyers should keep the exact subgrade distinction visible
If the buyer is screening a release route for a reverse-varnish program and wants a technically tighter UV-cured path, 2750 is often the strongest first conversation.
When CHLUMIAG® 3501 is the better fit
CHLUMIAG® 3501 deserves earlier review when the project brief is driven first by application compatibility. On the current Longchang product page, 3501 is positioned as an acrylic-modified silicone oil used in printing inks, inkjet inks, screen printing inks, wood coatings, overprint varnishes, release coatings， 和 anti-sticking agents.
That makes 3501 a commercially useful first route when the buyer is not trying to solve only one narrow reverse-varnish problem. Instead, they want a shortlist candidate already framed around the same application cluster their project lives in.
- 最佳匹配： UV inks and OPV teams that need a route clearly connected to print-side, varnish-side, and release-coating use windows
- 主要优势： the product-page application list is unusually aligned with this article’s topic, so the shortlist logic is easy to explain internally
- 主要观察点： because the product is attractive precisely for its broad application positioning, buyers should still define whether the first problem is release, anti-sticking, leveling, or overall surface control
If the commercial question is “which candidate already sits inside inks, OPV, and release-coating language,” 3501 is usually the cleanest answer.
当 CHLUMIAG® 3565 更合适时
CHLUMIAG® 3565 belongs earlier when the buyer wants a route that is not limited to one narrow print-side lane. Longchang supports it in 紫外、溶剂和水基体系, describes it as an organosilicon surfactant and leveling agent, and also positions it as an anti-sticking and peeling aid.
On the current Longchang product information, 3565 is described as water-dispersible 和 油溶性, with a recommended usage of 0.05% 至 1%. Longchang also says it should be 在固化剂之前加入 and stirred thoroughly. The critical watchpoint is explicit: the page warns that it 可能导致针孔 and should be tested before industrial production.
- 最佳匹配： anti-sticking or peeling-aid programs that want broader system flexibility and can manage the process discipline
- 主要优势： broader route flexibility than a narrower application-labeled release-coating option
- 主要观察点： do not ignore the stated pinhole-risk warning, especially if the film is already defect-sensitive
3565 is not the safest lazy default, but it is a strong shortlist candidate when the lab can control the addition sequence and wants more flexibility than a single application lane.
Why 2780 is not the first route on this page
The current 2750 family page also notes that 2780 is more commonly used in anti-blocking and anti-graffiti applications. That matters because it helps keep this page from overlapping the already-live broader anti-blocking and anti-graffiti branch.
For this article, the goal is not to re-run the same anti-blocking cluster. The goal is to help buyers in release-coating, reverse-varnish, and print-surface separation work choose the right first screen. That is why 2750, 3501, and 3565 create a cleaner shortlist for this application page.
买家在索取样品前应该如何选择
1. Decide whether reverse varnish is the real first decision
If yes, move 2750 earlier. The current company wording around reactive acrylic functionality and reverse-varnish suitability makes it the clearest first route.
2. Ask whether application compatibility matters more than reactive chemistry language
If the coating program spans UV inks, OPV, and release-coating work, 3501 becomes easier to defend internally because the company-supported application list already matches the buying context.
3. Check whether anti-sticking is the main pain point or just one part of broader surface control
If anti-sticking and peeling behavior are central, 3565 deserves earlier review, but only if the team can manage its addition sequence and defect screen.
4. Treat pinhole sensitivity as a first-round filter, not a late-stage surprise
3565 can be useful, but Longchang’s own warning means buyers should not postpone that screening step until production.
5. Keep nearby page overlap under control
If the problem is really general anti-blocking across multiple chemistries, start with the broader anti-blocking additive guide. If the problem is specific to release-coating or reverse-varnish work in UV inks and OPV, this page is the better entry point.
本页推荐的龙昌路线
- Reactive reverse-varnish route: CHLUMIAG® 2750 family
- Ink, OPV, and release-coating route: CHLUMIAG® 3501
- Anti-sticking and peeling-aid route: CHLUMIAG® 3565
- Related application page: How to Choose Surface-Control Additives for UV Varnishes
- 相关功能页面： 如何选择涂料和油墨的防粘连添加剂
- 集群概览： CHLUMICRYL® 涂层和油墨添加剂
常见问题
Which product is the strongest first screen for reverse-varnish release work?
Usually CHLUMIAG® 2750, because the current Longchang family page explicitly says 2750 is more suitable for reverse varnish and frames the route around reactive acrylic UV curing.
When should buyers choose CHLUMIAG® 3501 before 2750?
Choose 3501 earlier when the project brief is anchored in printing inks, overprint varnishes, release coatings, and anti-sticking-agent applications, and application compatibility matters more than reactive reverse-varnish language.
What makes CHLUMIAG® 3565 different in release-coating selection?
Longchang makes its anti-sticking and peeling-aid role, cross-system fit, add-before-curing-agent requirement, and pinhole-risk watchpoint more explicit than the other two routes. That gives it a different role in the shortlist.
Are 2750, 3501, and 3565 interchangeable?
No. Their company-supported positioning is different enough that buyers should not treat them as drop-in substitutes. One is framed around reactive reverse-varnish UV work, one around application compatibility, and one around broader anti-sticking handling with a stronger defect watchpoint.
Need a tighter shortlist for your release-coating project?
If your UV ink or overprint-varnish system is sticking after contact, releasing poorly, or needs a more controlled surface-separation route, define the real first-screen job before requesting samples. In many projects, that quickly narrows the first round to 2750 for a reactive reverse-varnish route, 3501 for application-matched release-coating and ink compatibility， 或者 3565 for anti-sticking flexibility with tighter process discipline.