2100 vs 3432 vs 3501 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.
Confirm identity, then screen 2100 wetting.
Screen 3432.
Gate 3501 by dose and protocol.
Resolve the 2100 identity first
Two distinct live records conflict: CHLUMIAG® 2100 및 CHLUMIWE® 2100. The public site does not establish one unambiguous current brand. Use “2100 wetting grade” and require the exact commercial name, code, TDS and COA before purchase.
Compare the public evidence
| 노선 | Published facts | First experiment | Boundary |
|---|---|---|---|
| 2100 wetting grade | Both records state 0.1–1.0%, all three system types and flexible addition | Retraction, spread and coverage after identity confirmation | Do not assume which record or property set applies to the lot |
| 클루마일® 3432 | 100% active polyether-modified polysiloxane; 0.05–1%; water/solvent/UV; any-stage addition | Leveling and surface uniformity | Must preserve adhesion, overprint and rub |
| 클루미아그® 3501 | Printing, inkjet, OPV and release/anti-sticking uses listed | Supplier-supported block/release study | No public dosage, active content or quantified block/rub result |
Use 2100 for measured entry failure
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.
Use 3432 for measured leveling
Screen within 0.05–1% 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.
Keep 3501 behind a data gate
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.
Use one variable at a time
| Trial | Change | Primary measure | Downstream gate |
|---|---|---|---|
| A | Control | Density, wetting, leveling, block and rub | Adhesion and conversion |
| B–D | Confirmed 2100 low/mid/high | Coverage and print quality | Adhesion, OPV and lamination |
| E–G | 3432 low/mid/high | Leveling and gloss | Rub, adhesion and recoat |
| H–J | 3501 after approval | Defined block/release | COF, rub and conversion |
Normalize density
ASTM D7305 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.
Measure rub separately
ASTM D5264 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.
Use vehicle testing as the framework
ASTM D6687 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.
Protect compliance
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.
Control substrate treatment and drying
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.
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.
Check overprint, lamination and sealing
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’s anchorage or change sealing behavior.
Decision rules
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.
- Confirm the exact 2100 identity, TDS and COA.
- Select 3432 only for a measured leveling defect within its published dose.
- Do not screen 3501 without dose and block evidence.
- Reject changes that harm density, adhesion, rub, overprint or conversion.
Information to send with an inquiry
Provide ink chemistry, print process, substrate/treatment, viscosity, deposit, drying or UV dose, current additives, block conditions, rub method, overprint/lamination and defect photographs.
Ask Longchang for a controlled 2100, 3432 and 3501 print study.