In the LOGO copper-plate printing addition-cure LSR spectrum, the "mixed viscosity (A 100k / B 80k / blend 86k mPa·s@23℃)" and "Pt catalyst locked in A + vinyl/SiH B 1:1 addition network" jointly dictate self-leveling fill in copper-plate intaglio, fast-cure efficiency at 125℃×200s (1cm), and adhesion-fullness boundary on fabric/plastic/metal. Common 10:1 screen ink has too short pot-life and high hardness clogging mesh; condensate RTV releases alcohol and shrinks edges; food-grade rules out tin-based condensate. As apparel silicone LOGO, shoe transfer labels, copper-plate 3D scrape, and fingerprint printing demand "2-part 1:1, transparent, flowable, Shore A 35, tensile ≥6MPa, elong ≥500%, tear ≥15kN/m, food-grade FDA/REACH/RoHS, Pt in A avoid poison," sourcing a 20/200kg split-drum, <23℃ 12mo domestic product has become the core gap for LOGO-print glue localization. Addressing this "flow-print fullness" pain point, Anhui IOTA Silicone Oil Co., Ltd. (IOTA) officially launches Logo Copper-Plate Printing Addition LSR IOTA 3M35 (2-part Pt-cured methylvinyl polysiloxane, A transparent 100k cps / B transparent 80k cps). Characterized by "pre-cure A:B 1:1, blend visc 86k mPa·s(23℃), 25℃ pot-life ~1h; post-cure transparent, Shore A 35, tensile ≥6MPa, break elong ≥500%, tear ≥15kN/m, 125℃×200s(1cm) heat or RT hours cure; food-grade (ISO/FDA/REACH/RoHS), Pt in A, colorant into B then mix A, 20/200kg drum, <23℃ unopened 12mo," and backed by "86k mid-visc self-fill + Pt no-byproduct fullness + food-grade high-elong no-crack," it serves as the "print-glue anchor" for copper transfer/screen/scrape LOGO. Molecular Architecture: Pt Locked in A + 86k Mid-Visc Self-Fill + 35A/500% High-Elong 3D Logic The core competitiveness of IOTA 3M35 stems from its "Part A: vinyl polysiloxane + Pt catalyst (Karstedt, locked in A); Part B: SiH polysiloxane crosslinker + thixotrope/adhesion aid" architecture:

• Pt Locked in A Anti-Cross-Poison： Pt only in A, B is pure crosslink side—activation only when same-batch A:B=1:1 mix; this lets B safely take color paste (color into B then equal A), avoiding trace S/amine in pigment killing Pt directly; separate A/B lines in plant won't cross-contaminate.
• 86k Mid-Visc Self-Fill： Blend 86k mPa·s (23℃ stirred) is "mid-high flow-print" — thicker than screen ink (5-20k) so it scrapes copper intaglio without overflow; thicker than cast LSR (few k) so 1cm layer 125℃×200s no slump; after degas fills grooves bubble-free, cured LOGO edge sharp, surface fullness high.
• 35A/500% High-Elong No-Crack： Shore A 35 mid-soft print gum, tensile ≥6MPa + elong ≥500% + tear ≥15kN/m, transfer peel won't snap, fabric stretch won't delaminate; food-grade base makes skin-contact apparel label harmless, passes FDA/LFGB class tests.

Performance Leap: From "10:1 Screen Clog" to "1:1 86k Copper Fullness" Incorporating IOTA 3M35 enables qualitative leaps:

• Apparel Silicone LOGO： Sportswear chest mark, cap transfer label—copper scrape → 125℃×200s cure → hot-press transfer to fabric, 3D full, 50 washes no crack.
• Shoe & Bag Label： EVA/TPU shoe upper 3D mark, leather bag hot-stamp—good substrate adhesion (no primer or light primer), -20℃ bend no blush.
• Industrial Nameplate Scrape： Plastic shell screen replacement, instrument panel embossed letters, A:B 1:1 hand/machine mix, 25℃ 1h pot-life fits small-batch multi-color.
• Fingerprint/Anti-fake： High-flow + food-grade purity, silicone base fingerprint film, anti-fake bump print.

Application Penetration: From Copper Transfer to Anti-Fake Fingerprint IOTA 3M35 covers sectors triple-sensitive to "1:1 easy-mix + mid-visc self-flow + food-grade high-elong":

• Apparel Trim： Sportswear/hypebeast silicone LOGO, transfer label, cuff 3D gum.
• Shoe/Leather/Bag： Shoe upper 3D mark, leather hot-stamp, bag emboss.
• Industrial Print： Copper-plate transfer, screen print, scrape coating, plastic part marking.
• Specialty Print： Fingerprint print, anti-fake bump, medical silicone imprint.

IOTA Technical Guide: Same-Batch 1:1, Color in B then A, Avoid N/S/P/Sn

• Mix： Same batch A:B by mass 1:1 (err <2%), stir 3-5min to transparent uniform, vac degas (-0.095~-0.1MPa×3-5min, container 4-5× volume for foam rise); 25℃ pot-life ~1h.
• Color Rule (hard)： To tint, put paste into B, stir, then mix equal A; never put pigment direct into A (Pt contact trace S/amine in some pigments causes local non-cure); never cross-batch A/B.
• Cure： Recommend heat 125℃×200s (1cm), or 80-120℃ few-min to ten-odd min; RT 25℃ slow cure (hours to ten-odd hrs by thickness); thick parts suggest heat + 150℃×1h anneal.
• Taboo Red Line： Absolute isolation from Pt poisons—nitrogen (amines/ammonia/urea), sulfur (thiols/sulfides/latex gloves/some rubber squeegees), phosphorus (phosphines/phosphate esters), organotin (condensate silicone curatives), heavy metals (Pb/Hg/Sn salts), acid/alkali/water/condensate alcohol; exclusive tools (PP/ceramic/clean SS), never share with epoxy/PU/RTV; wash rosin off copper-plate solder spots.
• Storage： A/B 20kg or 200kg iron drum split; unopened <23℃ cool dry dark, shelf 12 months, over-shelf test visc/cure/hardness and extend if qualified; non-haz general chemical, ventilate, nitrile gloves (no latex glove sulfur).

Industry experts note that under apparel silicone LOGO upgrading from "10:1 screen ink" to "1:1 copper-plate scrape 3D label", and export orders mandating FDA/REACH compliance, logo-print addition LSR is upgrading from "Dow/Momentive screen-ink import followers" to "copper-plate transfer 1:1 mid-visc fullness reference glue." IOTA 3M35, with its "A:B 1:1 + blend 86k + Shore A 35 + elong ≥500% + tear ≥15kN/m + Pt-in-A + food-grade four certs + 12mo" hard metrics, fills the domestic supply chain gap for LOGO copper-plate addition LSR in apparel-transfer/shoe-3D-label fields, providing a mass-producible path to replace imported screen silicones for downstream label/transfer makers. This confirms domestic print LSR is advancing steadily along "condensate RTV (alcohol shrink) → 10:1 screen ink (clog hard) → 1:1 copper-scrape addition (86k full food-grade)," with growing technical say in 3D-LOGO transfer key print-glues.