In sealants, adhesives and fibrous insulation binders, common mono-amino silanes offer limited reactive sites and adhesion; bis-amino methyl dimethoxy silanes crosslink too fast with short pot life in waterborne systems; traditional primer systems are process-heavy and costly; phenolic binders for fibrous insulation suffer fast electrical decay after moisture uptake. For demands of "bis-amino strong polarity and reactivity + triethoxy mild slow hydrolysis + long operation window + broad resin compatibility", a strictly controlled bis-amino triethoxy silane welds organic-inorganic dual reactivity at one silicon center. Addressing this, Anhui IOTA Silicone Oil Co., Ltd. launches IOTA 910 N-(2-aminoethyl)-3-aminopropyltriethoxy-silane. CAS 5089-72-5. Formula NH₂(CH₂)₂NH(CH₂)₃Si(OC₂H₅)₃. Clear liquid. Color (Pt-Co) max 25. Specific gravity at 20℃ 0.9650±0.005 g/cm³. Refractive index at 25℃ 1.4360±0.005. Purity ≥97.0%. Applications: excellent integral adhesion promoter for epoxy, SPUR, MS Polymer, RTV silicone and PVC-based sealants; useful component in primer systems for hybrid, SPUR, MS Polymer and polyurethane sealants; additive to phenolic binders for fibrous insulation; additive in phenolic and epoxy moulding compounds. Package: 25kg plastic drum, 200kg steel drum, 1000kg IBC. Storage cool dry, avoid water, tinder, heat, light; validity 6 months. Brand IOTA. System Positioning: Bis-Amino Triethoxy Silane Among Bis-Amino Silane Families Within bis-amino silanes, IOTA 910 is a bis-amino triethoxy substituted monomer, distinct from bis-amino methyl dimethoxy (methyl substituted, dimethoxy over-fast hydrolysis), 3-aminopropyltriethoxysilane (mono-amino, insufficient reactive sites), epoxy silanes (fast cationic, narrow window), mercapto silanes (no amino, weak polar resin adhesion). IOTA 910 uses terminal primary and secondary amines as ethylenediamine-type dual active centers for multiple ring-opening and condensation channels with epoxy/urethane/phenolic; three ethoxys have larger steric hindrance than methoxys, hydrolyzing ~10x slower, granting formulated systems longer pot life and shelf stability, positioning as "integral adhesion promoter for sealants/adhesives + key primer component for hybrid/PU systems + reinforcement for fibrous insulation phenolic binders + electrical modifier for phenolic/epoxy molding", rather than mere chain extender or end-capper. Molecular Architecture: One Si Bis-Amino Triethoxy + CAS 5089-72-5 + Sp.Gr. 0.9650±0.005 IOTA 910 core has silicon bonded to three ethoxy groups and one N-(2-aminoethyl)-3-aminopropyl chain, formula NH₂(CH₂)₂NH(CH₂)₃Si(OC₂H₅)₃. Terminal primary amine and adjacent secondary amine form dual active center, opening epoxy rings, forming urea with isocyanates, condensing with phenolic hydroxymethyl into multiple covalent bonds; three ethoxys hydrolyze to silanetriol, condensing with surface hydroxyls on glass/metal/concrete into stable Si-O-Si bonds; ethoxy groups with longer carbon chain than methoxy have larger steric hindrance, lowering hydrolysis rate by ~10x, significantly extending pot life and shelf life; sp.gr. 0.9650±0.005, RI 1.4360±0.005, color ≤25 ensure clean appearance. Performance Leap: From "Mono-Amino Shallow Bond, Primer Hassle" to "Bis-Amino Triethoxy, Silicone-Oxygen Strong-Adhesion" With IOTA 910, four-way synergy: integral adhesion—bis-amino covalent bonding with resin + triethoxy siloxane anchoring to substrate achieves high-strength bond to glass, aluminum, steel, concrete for epoxy, SPUR, MS Polymer, RTV silicone, PVC sealants, reducing or eliminating primer need; primer replacement—as useful component in hybrid/SPUR/MS Polymer/PU primer systems, simplifying construction and lowering cost; insulation reinforcement—additive in phenolic binders for glass/rock wool fibrous insulation lifts bond strength and湿热 resistance, slowing electrical decay after moisture uptake; molding improvement—reduces water absorption in phenolic/epoxy molding compounds, improving wet low-frequency dielectric stability. Application Penetration: From Sealant Tackifying to Primer Systems Full Coverage IOTA 910 covers four core scenarios.

• Sealant integral adhesion promotion: epoxy, SPUR, MS Polymer, RTV silicone, PVC-based sealants—primerless/reduced-primer bonding; direct addition 0.5%~2.0% with high-speed dispersion.
• Primer systems: hybrid, SPUR, MS Polymer, PU sealants—film-building promotion; prepare 1%~5% alcoholic/aqueous solution, apply to substrate.
• Fibrous insulation phenolic binders: glass wool, rock wool phenolic binders—moisture resistance and bond; blend into binder system.
• Phenolic & epoxy molding compounds: electronic encapsulation—wet electrical; reduce water uptake, lift low-frequency dielectric stability.

⚠️ Taboo: bis-amino silane easily reacts with CO₂ forming carbamate, store sealed oxygen-barrier, light-proof, low temp; validity only 6 months, retest amine value and viscosity if expired; avoid mixing with anhydrides, strong acids, strong oxidants; use waterborne preparations promptly; ventilate during handling, avoid skin contact and vapor inhalation. IOTA Technical Guide: 25kg Plastic / 200kg Steel Drum / 1000kg IBC IOTA 910 is clear liquid. For sealants/adhesives add 0.5%~2.0% direct into formula; for primer systems prepare 1%~5% alcoholic/aqueous solution; for insulation binders and molding compounds blend into resin. Seal store cool dry, strictly avoid water, fire, heat, light; shelf life 6 months. Industry Insight: Bis-amino silane selection is not the more amine the better, but using primary/secondary amine ratio for reactivity window, ethoxy count and carbon length for hydrolysis rate and pot life, purity and color for appearance and batch consistency, amine value retention for storage stability. For sealant formulators, insulation binder engineers and molding technologists, IOTA 910 uses one bis-amino triethoxy silane across adhesion promotion, primer replacement, insulation reinforcement and electrical improvement, taking bis-amino triethoxy and silicone-oxygen strong-adhesion as batch-checkable anchors, securing bond strength and process tolerance simultaneously.