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Trimethylolpropane triacrylate

CAS Number
15625-89-5
EC Number
239-701-3
Chemical Formula
C15H20O6
Molecular Weight
296.31 g/mol

Description

Trimethylolpropane triacrylate , widely recognized in the industry as TMPTA, is a trifunctional acrylate monomer used as a reactive crosslinker and diluent in UV- and EB-curable systems. Its three acrylate groups enable rapid network formation, making it a standard building block in radiation-curable formulations across coatings, adhesives, and inks. The CAS 15625-89-5 material is essential for high-performance applications. In UV-curable coatings for automotive and industrial substrates, it increases crosslink density, improving scratch resistance and chemical durability of the cured film. Printing ink formulators use it as a reactive diluent. This allows for precise control of viscosity without sacrificing cure speed or print resolution in energy-curable offset and flexographic inks. In adhesives and sealants, it contributes to cohesive strength and dimensional stability. Electronics manufacturers incorporate it into conformal coatings and encapsulants where fast cure and thermal resistance are process requirements. It is supplied as a low-viscosity liquid in drum and IBC quantities. The product is available in standard technical and industrial grades, with some suppliers offering low-skin-sensitization variants. Specifications are generally aligned with reactive monomer industry standards. Material is commonly evaluated against viscosity, acid value, and inhibitor content to ensure consistency. It meets rigorous industrial requirements for high-speed manufacturing and durable end-use performance. Contact us for supply of Trimethylolpropane triacrylate Request Quote

Other Names (Synonyms)

TMPTA | 2-Ethyl-2-(hydroxymethyl)-1,3-propanediol triacrylate | Viscoat 295 | Sartomer SR 351 | Ogumont T 200 | Setalux UV 2241 | Saret 351 | NK Ester A TMPT

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point-66°C
Boiling Point>200 °C
Density1.1 g/cm³ (approx)
Flash Point>230 °F
ColorColorless to Light yellow to Light orange
FormLiquid
Water SolubilityMiscible with water.
Vapor Pressure<0.01 mm Hg ( 20 °C)
Refractive Indexn 20/D 1.474(lit.)
Log P4.35 at 20℃

Safety & Handling

Warning
GHS07· IrritantGHS08· Health HazardGHS09· Environment

Hazard Statements

H315Causes skin irritation
H317May cause an allergic skin reaction
H319Causes serious eye irritation
H336May cause drowsiness or dizziness
H351Suspected of causing cancer
H360May damage fertility or the unborn child
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects

Precautionary Statements

P203Obtain, consult and follow expert instructions for use.
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash … thoroughly after handling.
P271Use only outdoors or in a well-ventilated area.
P272Contaminated work clothing should not be allowed out of the workplace.
P273Avoid release to the environment.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P318IF exposed or concerned, get medical advice.
P319Get medical advice/attention if you feel unwell.
P321Specific treatment (see … on this label).
P391Collect spillage.
P405Store locked up.
P501Dispose of contents/container in accordance with local regulations.
P265Wash … thoroughly after handling.
P352IF ON SKIN: Wash with plenty of water.
P340IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P317Get emergency medical help.
P317Get emergency medical help.
P317If eye irritation persists: Get medical advice/attention. Get emergency medical help.
P364Take off contaminated clothing and wash it before reuse.
P233Store in a well-ventilated place. Keep container tightly closed.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code29161290
WGK (Germany)1