Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Stannous Neodecanoate

CatalystchemStannousNeodecanoateSN-100Tin(II)neodecanoatewidelyusedasapolyurethaneandpolysiloxanecuringcatalystofferingfastreactivityexcellentstoragestabilityandlowvolatility.Brand:CatalystchemSeries:SNModel:SN-100Coreterm:StannousNeodecanoate
  • stannous neodecanoate_ccc96392
  • stannous neodecanoate_ccc96392

Features Of Stannous Neodecanoate

  1. High catalytic activity for urethane and esterification reactions at ambient to moderate temperatures.

  2. Excellent solubility in common organic solvents including aromatic hydrocarbons, ketones, and polyester polyols.

  3. Low volatility and thermal stability up to 180 °C, minimizing catalyst loss during processing.

  4. Reduced tendency to cause discoloration compared to traditional tin(II) carboxylates.

  5. Non-hygroscopic liquid form ensures consistent dosing and handling safety.

Typical Applications Of Stannous Neodecanoate

  1. Catalyst for moisture-cure polyurethane sealants and adhesives.

  2. Accelerator in one-component (1K) polyurethane coating systems.

  3. Promoter in silicone-based RTV-2 condensation-cure elastomers.

  4. Co-catalyst in alkyd resin synthesis and crosslinking reactions.

  5. Reaction modifier in bio-based polyol transesterification processes.

Specifications Of Stannous Neodecanoate



Chemical TypeTin(II) salt of branched-chain neodecanoic acid
Product FormClear, pale yellow to amber viscous liquid
AppearanceHomogeneous, free from visible particulates or sediment
Tin Content (as Sn)17.0 – 19.0 wt%
Acid Value (mg KOH/g)≤ 5.0
Density (25 °C, g/cm³)1.02 – 1.06
Viscosity (25 °C, cP)300 – 800
Regulatory ComplianceREACH registered; compliant with EU RoHS Directive (2011/65/EU); not classified as hazardous under GHS Rev. 9


Compatible Systems Of Stannous Neodecanoate

Common Compatible SystemsSuitability
Polyester Polyols (e.g., adipate- and phthalate-based)Highly Recommended – Rapid gel time control without side reactions
Aromatic Isocyanates (TDI, MDI, polymeric MDI)Highly Recommended – Efficient NCO–OH reaction promotion
Alkoxysilane-terminated prepolymersRecommended – Effective moisture cure initiation with low odor
Acetoxy-cure silicone systemsSuitable – Moderate acceleration; requires compatibility testing for shelf life

Stannous Neodecanoate – Frequently Asked Questions (FAQ)

Q1: What is the CAS Number for Stannous Neodecanoate?

A: The CAS Registry Number is 301-10-0.


Q2: What is the typical usage level in polyurethane sealants?

A: Standard dosage ranges from 0.05% to 0.3% by weight relative to total formulation, depending on cure speed requirements and base polymer reactivity.


Q3: How does it compare to dibutyltin dilaurate (DBTDL) in terms of regulatory acceptance?

A: Unlike DBTDL (CAS 77-58-7), Stannous Neodecanoate is not listed as a Substance of Very High Concern (SVHC) under REACH and exhibits lower aquatic toxicity, supporting broader global market access.


Q4: Is Stannous Neodecanoate prone to migration or extractable tin in end-use applications?

A: Due to its high molecular weight and covalent integration into polymer networks, extractable tin levels remain well below 0.1 ppm in fully cured systems per EN 1122 and US FDA 21 CFR §175.105 testing protocols.



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