{"id":10754,"date":"2026-07-20T00:00:55","date_gmt":"2026-07-20T00:00:55","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=10754"},"modified":"2026-08-09T14:00:55","modified_gmt":"2026-08-09T14:00:55","slug":"2100-vs-3432-vs-3501","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/nl\/2100-vs-3432-vs-3501\/","title":{"rendered":"2100 vs 3432 vs 3501: Wetting, Leveling & Release"},"content":{"rendered":"

2100 vs 3432 vs 3501<\/strong> compares three different print-surface questions. The 2100 wetting grade targets substrate entry but has conflicting live identities. 3432 has documented leveling evidence and dose. 3501 is positioned for release and anti-sticking but has no public dosage. Choose the failure before the product.<\/p>\n

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Ink retracts<\/strong>
Confirm identity, then screen 2100 wetting.<\/div>\n
Print face levels poorly<\/strong>
Screen 3432.<\/div>\n
Dry print blocks<\/strong>
Gate 3501 by dose and protocol.<\/div>\n<\/div>
Original 2100\/3432\/3501 map: separate substrate wetting, leveling and dry release.<\/figcaption><\/figure>\n

Resolve the 2100 identity first<\/h2>\n

Two distinct live records conflict: CHLUMIAG\u00ae 2100<\/a> en CHLUMIWE\u00ae 2100<\/a>. The public site does not establish one unambiguous current brand. Use \u201c2100 wetting grade\u201d and require the exact commercial name, code, TDS and COA before purchase.<\/p>\n

Compare the public evidence<\/h2>\n\n\n\n\n\n\n\n
Route<\/th>\nPublished facts<\/th>\nFirst experiment<\/th>\nBoundary<\/th>\n<\/tr>\n<\/thead>\n
2100 wetting grade<\/td>\nBoth records state 0.1\u20131.0%, all three system types and flexible addition<\/td>\nRetraction, spread and coverage after identity confirmation<\/td>\nDo not assume which record or property set applies to the lot<\/td>\n<\/tr>\n
CHLUMILE\u00ae 3432<\/a><\/td>\n100% active polyether-modified polysiloxane; 0.05\u20131%; water\/solvent\/UV; any-stage addition<\/td>\nLeveling and surface uniformity<\/td>\nMust preserve adhesion, overprint and rub<\/td>\n<\/tr>\n
CHLUMIAG\u00ae 3501<\/a><\/td>\nPrinting, inkjet, OPV and release\/anti-sticking uses listed<\/td>\nSupplier-supported block\/release study<\/td>\nNo public dosage, active content or quantified block\/rub result<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Use 2100 for measured entry failure<\/h2>\n

After identity confirmation, start at the supplier-approved low dose and hold substrate treatment, viscosity, deposit and drying constant. Measure retraction, pinholes, density and line\/dot quality. Better wetting does not prove stronger adhesion; test tape adhesion, overprint and lamination separately.<\/p>\n

Use 3432 for measured leveling<\/h2>\n

Screen within 0.05\u20131% at equal density and film deposit. Compare flow, gloss and surface uniformity while monitoring craters, intercoat adhesion and rub. Its any-stage addition statement does not prove that grind, letdown and post-addition give identical results; record the stage.<\/p>\n

Keep 3501 behind a data gate<\/h2>\n

First rule out retained water or solvent, inadequate UV dose, warm rewinding and excessive stack pressure. Then request current dose, active content, compatible vehicles and a reproducible block method. A release application listing is not a quantified result and does not support blind equal-dose comparison.<\/p>\n

Use one variable at a time<\/h2>\n\n\n\n\n\n\n\n\n
Trial<\/th>\nChange<\/th>\nPrimary measure<\/th>\nDownstream gate<\/th>\n<\/tr>\n<\/thead>\n
A<\/td>\nControl<\/td>\nDensity, wetting, leveling, block and rub<\/td>\nAdhesion and conversion<\/td>\n<\/tr>\n
B\u2013D<\/td>\nConfirmed 2100 low\/mid\/high<\/td>\nCoverage and print quality<\/td>\nAdhesion, OPV and lamination<\/td>\n<\/tr>\n
E\u2013G<\/td>\n3432 low\/mid\/high<\/td>\nLeveling and gloss<\/td>\nRub, adhesion and recoat<\/td>\n<\/tr>\n
H\u2013J<\/td>\n3501 after approval<\/td>\nDefined block\/release<\/td>\nCOF, rub and conversion<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Normalize density<\/h2>\n

ASTM D7305<\/a> describes reflection-density measurement on printed paper, film or board. Match density before ranking gloss, rub or defects. It is not intended for metal or foil.<\/p>\n

Measure rub separately<\/h2>\n

ASTM D5264<\/a> provides a comparative Sutherland rub practice. Fix receptor, load, cycles and conditioning. Blocking needs a separate pressure\/temperature\/time simulation. A grade can improve release while weakening rub.<\/p>\n

Use vehicle testing as the framework<\/h2>\n

ASTM D6687<\/a> guides testing of printing-ink vehicles and components. Record resin, pigment, water\/solvent\/UV status, drying\/cure, process speed and aging. Do not merge candidates until single-variable results are understood.<\/p>\n

Protect compliance<\/h2>\n

Public pages do not establish food-contact, low-migration or destination-market compliance. Map direct contact, indirect contact and set-off, obtain applicable declarations and validate the full printed construction.<\/p>\n

Control substrate treatment and drying<\/h2>\n

Measure corona or plasma treatment immediately before printing and record substrate lot, surface coating and storage age. Treatment decay or contamination can make a wetting candidate appear necessary when the root cause is the film. For paper and board, record moisture and topcoat because absorbency changes density and apparent leveling.<\/p>\n

Fix dryer temperature, airflow, speed and residual water or solvent, or fix lamp irradiance and dose for UV work. Blocking and rub failures caused by incomplete drying or cure must be corrected before screening 3501. Use the same conditioning interval for every print.<\/p>\n

Check overprint, lamination and sealing<\/h2>\n

Apply the intended overprint varnish, adhesive or laminate at production coat weight and interval. Measure bond and inspect delamination after aging. For heat-sealed packages, keep the seal area and conditions constant. A surface change that improves leveling or release can reduce the next layer\u2019s anchorage or change sealing behavior.<\/p>\n

Decision rules<\/h2>\n

Do not combine 2100 and 3432 simply because one addresses entry and the other leveling. Their effects can overlap at the surface and may change foam, adhesion or overprint together. Establish the minimum effective level of a single route first; only then use a small factorial study if two independent defects remain.<\/p>\n