{"id":10815,"date":"2026-07-23T00:00:24","date_gmt":"2026-07-23T00:00:24","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=10815"},"modified":"2026-08-08T08:38:31","modified_gmt":"2026-08-08T08:38:31","slug":"3345-vs-3432-vs-3501","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/it\/3345-vs-3432-vs-3501\/","title":{"rendered":"3345 vs 3432 vs 3501: Practical Surface Additive Guide"},"content":{"rendered":"

3345 vs 3432 vs 3501 should be compared using the facts published for each product\u2014not by assuming that all silicone surface additives deliver the same handling result.<\/strong> CHLUMILE\u00ae 3345 is positioned as wetting and leveling, CHLUMILE\u00ae 3432 as leveling, and CHLUMIAG\u00ae 3501 as acrylic-modified silicone oil. All three public pages list water, solvent, and UV compatibility, but their dosage evidence is not equal.<\/p>\n

The key data gap is 3501: its public page gives addition flexibility and system fit but no recommended dosage or quantified anti-sticking endpoint. Obtain the current TDS and supplier-confirmed application range before a trial. Do not borrow a dosage from 3345 or 3432.<\/p>\n

3345 vs 3432 vs 3501 evidence map<\/h2>\n
\n\n\n\n\n\n\n\n\n
Question<\/th>\nPublished evidence<\/th>\nPrimo percorso<\/th>\n<\/tr>\n<\/thead>\n
Need combined wetting and leveling with a published dosage?<\/td>\n3345 title\/function, 0.1\u20131.0%, broad systems, DPM may enhance effect<\/td>\n3345<\/td>\n<\/tr>\n
Need a leveling-focused polyether-modified polysiloxane with a published dosage?<\/td>\n3432 title\/function, 0.05\u20131.0%, broad systems<\/td>\n3432<\/td>\n<\/tr>\n
Need to investigate dried-film handling with acrylic-modified silicone?<\/td>\n3501 composition and broad-system\/addition evidence; dosage\/performance not public<\/td>\n3501 only after current TDS and endpoint confirmation<\/td>\n<\/tr>\n
Defect follows contamination, foam, under-cure, or excessive film build<\/td>\nNone of the three proves a cause-specific fix<\/td>\nCorrect mechanism before surface-additive comparison<\/td>\n<\/tr>\n<\/tbody>\n<\/table>
Original evidence-first comparison: distinguish published wetting\/leveling guidance from a 3501 handling hypothesis that still needs current supplier data.<\/figcaption><\/figure>\n\n\n\n\n\n\n\n
Prodotto<\/th>\nPublished composition\/system<\/th>\nUso pubblicato<\/th>\nEvidence limit<\/th>\n<\/tr>\n<\/thead>\n
CHLUMILE\u00ae 3345<\/strong><\/a><\/td>\nPolyether-modified polysiloxane; water\/solvent\/UV; 100% active<\/td>\n0.1\u20131.0%; grind, stirring, or post-addition; water\/alcohol\/alkane\/aromatic dilution; DPM may enhance<\/td>\nStill requires application-specific wetting, foam, recoat, and cure validation<\/td>\n<\/tr>\n
CHLUMILE\u00ae 3432<\/strong><\/a><\/td>\nPolyether-modified polysiloxane; water\/solvent\/UV; 100% active<\/td>\n0.05\u20131.0%; any production stage; water\/alcohol\/alkane\/aromatic dilution<\/td>\nPublic page says avoid mixing with other additives<\/td>\n<\/tr>\n
CHLUMIAG\u00ae 3501<\/strong><\/a><\/td>\nAcrylic-modified silicone oil; multi-component modified polysiloxane; water\/solvent\/UV<\/td>\nAny production stage or post-addition<\/td>\nNo public recommended dosage or quantified anti-sticking\/handling endpoint<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Choose 3345 for documented wetting plus leveling<\/h2>\n

3345 is the first screen when both substrate\/film wetting and leveling are demonstrated needs. Its page provides a 0.1\u20131.0% range, flexible addition, broad dilution options, and a note that dipropylene glycol methyl ether may enhance the effect.<\/p>\n

Test the actual co-solvent balance because enhanced wetting may also change foam, flash, sag, substrate attack, cure, or water sensitivity. Start low and hold film build, viscosity, application, and cure constant.<\/p>\n

Choose 3432 for a documented leveling route<\/h2>\n

3432 is the more directly leveling-focused comparison. Its page gives 0.05\u20131.0%, any-stage addition, and broad system\/dilution compatibility. It also tells users to avoid mixing with other additives, so evaluate it alone before reintroducing optional surface agents.<\/p>\n

Measure flow\/leveling, orange peel, craters, sag, gloss, haze, foam, recoat, adhesion, cure, and storage. A lower-wave surface that harms downstream print or intercoat adhesion is not a passing result.<\/p>\n

Treat 3501 as a data-qualified experiment<\/h2>\n

The public 3501 page confirms acrylic-modified silicone oil, water\/solvent\/UV compatibility, and flexible addition. It does not state a recommended dosage. It also does not publish a test method, conditions, or numerical anti-sticking result.<\/p>\n

Before trial, obtain the current TDS and agree on the target: blocking force, face-to-back transfer, coefficient of friction, rub\/scuff, release, or another handling measure. Use only the supplier-supported range and report cure, film build, conditioning, pressure, temperature, and contact time.<\/p>\n

Do not let the application name replace diagnosis<\/h2>\n

Wetting, leveling, anti-cratering, slip, blocking, rub, and printability are different. Map when the defect appears: immediately after application, during flash\/cure, in stacking\/rewinding, or during converting. Audit contamination, foam, rheology, film build, and cure before assigning a product.<\/p>\n

All three products cover broad systems on their public pages, but that does not prove compatibility with every acrylic, polyurethane, epoxy, alkyd, UV oligomer, pigment, defoamer, wax, or substrate.<\/p>\n

Keep a dated copy of the technical data used for approval. If the supplier later changes a range, composition statement, or restriction, reassess the production formula instead of assuming the earlier qualification still applies.<\/p>\n

Build a fair three-route comparison<\/h2>\n
    \n
  1. Define one target.<\/strong> Choose wetting, leveling, or a precisely measured handling failure.<\/li>\n
  2. Fix the base formula.<\/strong> Hold resin, pigments\/fillers, solvents\/water, pH, solids, and other additives.<\/li>\n
  3. Fix preparation.<\/strong> Record dilution, order, shear, temperature, and addition stage.<\/li>\n
  4. Fix application\/cure.<\/strong> Hold substrate, film build, flash, airflow, temperature, humidity, and cure dose\/time.<\/li>\n
  5. Use supported doses.<\/strong> Run low ladders for 3345\/3432 and wait for current guidance before dosing 3501.<\/li>\n<\/ol>\n

    Measure surface and downstream guardrails<\/h2>\n

    ASTM D823<\/a> describes production of uniform test films, ASTM D523<\/a> covers specular gloss, and ASTM D3359<\/a> rates tape adhesion on suitable metallic substrates while noting sensitivity and multicoat limits.<\/p>\n

    Add crater count, leveling\/wave, sag, foam\/pinhole count, haze, COF or blocking where relevant, cure, rub\/scuff, print\/recoat\/foil\/lamination\/glue adhesion, water\/chemical resistance, and storage. Use the customer\u2019s substrate and conditioning.<\/p>\n

    Errori comuni nel confronto<\/h2>\n

    Assigning a 3501 dosage from another product<\/h3>\n

    3345 and 3432 publish ranges; 3501 does not. Composition similarity is not a valid basis for copying dosage.<\/p>\n

    Calling 3501 anti-sticking without a defined test<\/h3>\n

    State the handling endpoint and obtain current supplier evidence. A qualitative label cannot replace controlled pressure, temperature, time, and conditioning.<\/p>\n

    Mixing all three into one trial<\/h3>\n

    That prevents attribution and conflicts with published mixing cautions. Screen individually, then test only necessary combinations.<\/p>\n

    Request a 3345\/3432\/3501 shortlist<\/h2>\n

    Send the water\/solvent\/UV system, resin, pigments and other surface additives, substrate, application, film build, flash\/cure, observed defect timing, target wetting\/leveling\/handling measure, and downstream recoat\/print\/foil\/lamination\/glue requirements. Ask Longchang Chemical to compare 3345, 3432, or a TDS-qualified 3501 route<\/strong><\/a>.<\/p>","protected":false},"excerpt":{"rendered":"

    A B2B buyer guide for separating broad wetting-and-leveling work, print-face leveling, and anti-sticking handling across CHLUMILE\u00ae 3345, CHLUMILE\u00ae 3432, and CHLUMIAG\u00ae 3501.<\/p>","protected":false},"author":6,"featured_media":10816,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-10815","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"yoast_head":"\n3345 vs 3432 vs 3501: Practical Surface Additive Guide<\/title>\n<meta name=\"description\" content=\"Compare 3345, 3432 and 3501 by documented function, dosage, addition stage and data gaps. 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