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Dibutyltin Diacetate

  • MOFAN Grade:: MOFAN DBTDA
  • Competitor Brand:: CAT 400,BNT,Fascat®4200
  • Chemical name:: Dibutyltin diacetate
  • Cas number:: 1067-33-0
  • Product Detail

    Product Tags

    Description

    Dibutyltin Diacetate is a clear to pale yellow transparent liquid with a slight characteristic ester odor. It is a organotin compound with good catalytic activity and stability, widely used in various chemical synthesis and polymer processing fields.

    Application

    ●Primary catalyst for the synthesis of polyurethane (PU) products, including flexible foams, rigid foams, coatings, adhesives, and elastomers, which can significantly accelerate the curing reaction of PU systems.
    ●Catalyst for silicone rubber curing, promoting the crosslinking reaction of silicone polymers and improving the mechanical properties of the product.
    ●Crosslinking agent and stabilizer in polymer systems, such as PVC, to enhance the thermal stability and processing performance of the polymer.
    ●Catalyst for esterification and transesterification reactions in organic synthesis, applicable to the production of esters, plasticizers, and other fine chemicals.

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    Typical Properties

    Appearance Clear to pale yellow liquid
    Purity,% ≥98
    Tin content (Sn), % 32-33
    Density g/cm3 1.3
    Viscosity mPa.s @25℃ 20-30

    Commercial specification

    Tin content (Sn), % 32-33

    Package

    25kg/drum or according to customer needs.

    Hazard statements

    H314 Causes severe skin burns and eye damage.
    H317 May cause an allergic skin reaction.
    H341 Suspected of causing genetic defects.
    H360 May damage fertility or the unborn child.
    H370 Causes damage to organs (thymus gland) if swallowed.
    H372 Causes damage to organs (thymus gland) through prolonged or repeated exposure if
    swallowed.
    H410 Very toxic to aquatic life with long lasting effects.

    Label elements

    未标题-1

     Pictograms

    Signal word  Danger
    UN number:  2922
    Class: 8+6.1
    Proper shipping name and description: CORROSIVE LIQUID, TOXIC, N.O.S. (Dibutyltin diacetate)
    Chemical name: Dibutyltin Diacetate

    Handling and storage

    ●Store in a cool, dry, well-ventilated warehouse, away from heat sources, open flames, and direct sunlight. The storage temperature should be controlled between 5℃ - 30℃.
    ●Keep the container tightly sealed when not in use to prevent moisture absorption, oxidation, and leakage.
    ●Avoid contact with strong acids, strong bases, oxidants, and reducing agents to prevent chemical reactions.
    ●During handling, wear appropriate personal protective equipment (PPE), including chemical-resistant gloves, goggles, and protective clothing, to avoid direct contact with skin, eyes, and respiratory tract.
    ●Shelf life: 12 months from the date of production when stored in sealed and proper conditions. If the product exceeds the shelf life, it can be used only after passing the re-inspection.

    FAQ

    I make polyurethane elastomers and need a fast cure without bubbles. How does DBTDA help?

    DBTDA is a strong gel catalyst, similar to dibutyltin dilaurate but faster; use 0.05–0.2 phr for cast elastomers.

    My rigid spray foam has poor adhesion to metal. Can DBTDA improve adhesion?

    Yes, its high catalytic activity at the interface promotes chemical bonding; increase to 0.3–0.5 phr.

    What is the advantage of DBTDA over DBTDL in high-resilience molded foam?

    DBTDA gives faster demolding (2–3 min at 50°C) with less surface tack.

    I produce de-acetic acid type silicone sealants. Is DBTDA a suitable catalyst?

    Yes, it is commonly used as a condensation catalyst for acetoxy silicone systems.

    My polyurethane elastomer has poor tear strength. How to use DBTDA to improve?

    Use 0.1–0.2 phr together with a mild amine; it increases crosslink density without brittleness.

    Can MOFAN DBTDA be used in one-component moisture-cure PU adhesives?

    Not recommended because it is not latent; use DBTDL for longer shelf life.

    What is the typical dosage in a rigid polyurethane foam for pipe insulation?

    0.2–0.4 phr (based on polyol) to achieve fast cure and good dimensional stability.

    My foam formulation contains water as blowing agent. Will DBTDA react with water?

    DBTDA is sensitive to moisture; always keep the polyol dry (<0.05% water) to avoid foam collapse.

    Is DBTDA compatible with flame retardants like TCPP?

    Yes, but test for compatibility; some phosphate esters may reduce catalytic activity.

    How should I store DBTDA?

    Store in a cool, dry place; it melts at around 10°C; warm to 25°C before use if solidified.


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