In epoxy resins, polyurethane resins and other amine-terminated or modified polymer systems, traditional crosslinkers with overly fast reactions cause short pot life and immediate gelation after mixing, narrowing application windows. Ordinary aminosilane coupling agents are mostly primary or bis-primary amine structures with high activity and poor stability; insufficient crosslinking points after hydrolysis fail to impart one-component moisture-curing characteristics. In polyurethane, RTV, epoxy and phenolic adhesives and sealants, uneven pigment/filler dispersion, weak adhesion to inorganic substrates like glass and metals, and poor water resistance are prominent. Filler surface treatment and metal anti-corrosion lack high-crosslink-density silanes for durable protection. For specifications demanding "mild delayed reaction, good stability, multi-hydroxyl after hydrolysis, moisture curing, high crosslink density", a strictly controlled bis-silane secondary amine places crosslinking, coupling and anti-corrosion at one additive node. Addressing this, Anhui IOTA Silicone Oil Co., Ltd. launches Bis(3-trimethoxysilylpropyl)amine IOTA-1170. Characterized by "bis-silane secondary amine; Molecular Formula: C₁₂H₃₁NO₆Si₂; CAS NO.: 82985-35-1; low-viscosity pale yellow clear transparent liquid, slight ammonia odor; Density (20℃) 1.040 g/cm³; soluble in alcohols, esters, ethers, benzene and other conventional aliphatic/aromatic solvents, but reacts with acetone and carbon tetrachloride; hydrolyzes upon water contact, hydrolysis product unstable; secondary amine structure gives milder delayed reaction and better stability, more hydroxyls after hydrolysis; acts as crosslinker for epoxy, polyurethane and other amine-terminated/modified resins, imparting moisture-curing property; suitable for PU, RTV, epoxy, phenolic adhesives and sealants, improving pigment/filler dispersion and adhesion to glass, metals with water resistance; higher crosslink density after hydrolysis suitable for filler surface treatment and metal anti-corrosion; sealed storage in cool dry ventilated place, moisture-proof, away from fire/heat/light, shelf life six months; packaging 5Kg/25Kg/200Kg/1000Kg plastic drum", backed by "bis-silane sec-amine + mild delay + high crosslink density", it serves as a bis-silane crosslinking coupling agent for resin modification and adhesives. System Positioning: Bis-Silane Sec-Amine Among Crosslinking Coupling Families Within silane adjuvant families, IOTA-1170 is a bis(trimethoxysilylpropyl) secondary amine, distinct from primary aminosilanes (too fast, short pot life), bis-primary aminosilanes (high activity but lacking sec-amine delay), epoxy silanes (no amine curing), and methyltrimethoxysilane (no organic functionality). IOTA-1170 uses secondary amine for mild delayed curing and bis-trimethoxysilyl groups for double hydrolysis crosslinking points. It positions as a 3-in-1 multifunctional adjuvant for "epoxy/PU moisture-cure crosslinking + adhesive/sealant coupling enhancement + filler treatment and metal anti-corrosion", rather than a single-purpose coupling agent or mere crosslinker. Molecular Architecture: Bis-trimethoxysilylpropyl + Secondary Amine Bridge + Mild Activity + High-Density Crosslink IOTA-1170 molecular formula C₁₂H₃₁NO₆Si₂ consists of two [–(CH₂)₃–Si(OCH₃)₃] units linked via a secondary amine nitrogen (–NH–). The secondary amine group has lower reactivity than primary amine, making crosslinking with epoxy/polyurethane prepolymers milder and delayed, extending working time while improving storage stability. Bis-trimethoxysilyl groups hydrolyze to generate more silanol groups (–Si(OH)₃), yielding significantly higher crosslink density than mono-silanes. Propylene spacers adjust steric hindrance. The product is a low-viscosity pale yellow clear liquid, density 1.040 g/cm³ (20℃), soluble in alcohols, esters, ethers, benzene (not for use with acetone or CCl₄), facilitating formulation dispersion. Performance Leap: From "Primary Amine Too Fast, Mono-Silane Low Crosslink" to "Bis-Silane Sec-Amine Moisture High-Cross" With IOTA-1170, formulations improve jointly: mild moisture curing—sec-amine delays crosslinking, imparting moisture-cure to epoxy/PU resins with wide application window; high crosslink density—bis-silane hydrolysis produces more hydroxyls, forming dense Si–O–M networks on inorganic surfaces, boosting adhesion to glass/metal and water resistance; dispersion & coupling—improves pigment/filler dispersion in PU, RTV, epoxy, phenolic adhesives, raising bond strength; anti-corrosion & treatment—high crosslink density suits filler hydrophobic modification and metal silane pretreatment, enhancing interfacial barrier; process—low viscosity easy metering, multiple packaging sizes for different capacities. Application Penetration: From Resin Moisture Curing to Adhesives and Anti-Corrosion IOTA-1170 covers three core scenarios. Resin moisture-cure crosslinking: one-component moisture-curable modification of epoxy, PU and other amine-terminated resins—emphasizing mild reaction and extended pot life; trial by resin equivalent. Adhesives and sealants: coupling enhancement in PU, RTV, epoxy, phenolic systems, improving filler dispersion and adhesion to glass/metal with water resistance; trial by formula. Filler surface treatment and metal anti-corrosion: hydrophobic modification of inorganic fillers and metal silane conversion coating—emphasizing high crosslink density barrier; trial per treated object. ⚠️ Taboo: hydrolyzes on water contact with unstable product, store sealed moisture-proof; do not use with acetone or carbon tetrachloride; store in cool dry ventilated place away from fire/heat/light, shelf life six months. IOTA Technical Guide: Trial by Matrix, Solvent Dispersion, Sealed Storage IOTA-1170 is a low-viscosity pale yellow transparent liquid. As crosslinker, add directly to resin system, preferably pre-diluted with suitable solvent (alcohol/ester/ether/benzene); as coupling agent, pre-treat filler or add into adhesive formula; as anti-corrosion agent, prepare as hydrolysis solution. Packaging 5Kg/25Kg/200Kg/1000Kg plastic drums. Sealed storage in cool, dry, ventilated place, moisture-proof, away from fire/heat/light; managed as general chemical. Industry Insight: The key to bis-silane sec-amine as crosslinker is not faster reaction at all costs, but using sec-amine for mild delay, bis-trimethoxy for high crosslink density, propylene spacer for spatial balance, and dosage band for curing/coupling/anti-corrosion balance. For resin, adhesive and anti-corrosion engineers, IOTA-1170 uses one CAS 82985-35-1 bis-silane sec-amine across resin moisture curing, multi-system adhesive coupling and filler/metal treatment, taking mild delay, high crosslink, water-resistant strong bond as batch-checkable anchors, reducing fast-gel, insufficient crosslink and interfacial debonding rework.