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Trimethylolpropane Triacrylate is a multifunctional acrylate monomer used as a reactive diluent and crosslinking agent in UV/EB-curable and free-radical cured systems, and Trimethylolpropane Triacrylate is valued for enabling fast cure, high crosslink density, and improved hardness and chemical resistance.
Trimethylolpropane Triacrylate is widely used in radiation-curable coatings, inks, adhesives, and 3D printing resins, and Trimethylolpropane Triacrylate performance depends on functionality, inhibitor level, viscosity, photoinitiator selection, and the balance of oligomers and monomers in the formulation.
Trimethylolpropane Triacrylate is typically supplied as a clear to pale yellow liquid, and Trimethylolpropane Triacrylate can cause skin sensitization and irritation, so controlled handling and exposure prevention are critical in manufacturing and application.
CAS Number: 15625-89-5 (commonly associated; technical grade may be mixture)
EC Number: 239-701-3
Molecular Formula: C15H20O6
Molecular Weight: 296.32 g/mol
Synonyms: Trimethylolpropane Triacrylate, TMPTA, Trimethylolpropane Triacrylate Monomer, TMP Triacrylate, Propane-1,1,1-triyl Triacrylate (naming), 2-Ethyl-2-(hydroxymethyl)-1,3-propanediol Triacrylate (naming), Triacrylate Crosslinker, UV Reactive Diluent TMPTA, TMPTA Reactive Monomer, TMPTA Crosslinking Agent, Trimethylolpropane Triacrylate Resin Diluent, Trimethylolpropane Triacrylate, TMPTA, Trimethylolpropane Triacrylate Monomer, Trimethylolpropane Triacrylate Ester, Trimethylolpropane Triacrylate Resin, Trimethylolpropane Triacrylate Crosslinker, Trimethylolpropane Triacrylate Reactive Diluent, Trimethylolpropane Triacrylate Acrylate, 1,1,1-Trimethylolpropane Triacrylate, 2-Ethyl-2-(hydroxymethyl)-1,3-propanediol Triacrylate, 2-Ethyl-2-[(acryloyloxy)methyl]-1,3-propanediyl Diacrylate, Propane-1,1,1-triyl Trimethacrylate, Trimethylol Propane Triacrylate, Trimethylolpropane Trisacrylate, Trimethylolpropane Triacrylic Ester, Trimethylolpropane Tris(acrylate), Tris(acryloyloxymethyl)propane, 1,1,1-Tris(acryloyloxymethyl)propane, 1,1,1-Propanetriyl Trisacrylate, Propylidynetrimethylene Triacrylate
APPLICATIONS
Trimethylolpropane Triacrylate is used in UV-curable coatings to increase crosslink density and improve hardness, scratch resistance, and chemical resistance.
Trimethylolpropane Triacrylate is incorporated into wood coatings to improve cure speed and reduce tack after UV exposure.
Trimethylolpropane Triacrylate is used in plastic coatings to improve mar resistance and adhesion in compatible systems.
Trimethylolpropane Triacrylate is used in UV and EB-curable inks to improve cure response and reduce set-off by creating a harder crosslinked film.
Trimethylolpropane Triacrylate is incorporated into flexographic and screen inks to improve rub resistance and chemical resistance.
Trimethylolpropane Triacrylate is used in overprint varnishes to increase gloss and improve surface durability.
Trimethylolpropane Triacrylate is used as a reactive diluent in radiation-curable adhesives to reduce viscosity while maintaining 100% solids.
Trimethylolpropane Triacrylate is incorporated into laminating adhesives to improve cure speed and bond strength in compatible designs.
Trimethylolpropane Triacrylate is used in pressure-sensitive adhesives in selected applications to tune cohesion and crosslink density.
Trimethylolpropane Triacrylate is used in 3D printing resins to increase network formation, improve feature stability, and reduce post-cure deformation.
Trimethylolpropane Triacrylate is incorporated into stereolithography formulations to adjust viscosity and achieve fast layer cure.
Trimethylolpropane Triacrylate is used in dental and medical photopolymer systems in selected applications where high crosslink density is required and regulatory compliance is met.
Trimethylolpropane Triacrylate is used in composites and fiber-reinforced UV systems in selected applications to improve matrix hardness and chemical resistance.
Trimethylolpropane Triacrylate is incorporated into gel coats and clear coats to improve cure response and surface properties.
Trimethylolpropane Triacrylate is valued because Trimethylolpropane Triacrylate provides high functionality and fast reactivity that supports rapid curing and durable film properties in radiation-curable systems.
Trimethylolpropane Triacrylate is used as a multifunctional acrylate monomer in UV-curable formulations.
Trimethylolpropane Triacrylate helps increase crosslink density in radiation-curable systems.
Trimethylolpropane Triacrylate is used in UV-curable coatings.
Trimethylolpropane Triacrylate improves hardness, gloss, and chemical resistance in cured films.
Trimethylolpropane Triacrylate is used in electron-beam-curable coatings.
Trimethylolpropane Triacrylate supports rapid curing without conventional thermal drying.
Trimethylolpropane Triacrylate is used in wood coating formulations.
Trimethylolpropane Triacrylate helps produce abrasion-resistant finishes for flooring, furniture, and panels.
Trimethylolpropane Triacrylate is used in plastic coating systems.
Trimethylolpropane Triacrylate improves surface durability on compatible plastic substrates.
Trimethylolpropane Triacrylate is used in metal coating formulations.
Trimethylolpropane Triacrylate supports chemical resistance and protective performance in cured coatings.
Trimethylolpropane Triacrylate is used in overprint varnishes.
Trimethylolpropane Triacrylate helps provide gloss, rub resistance, and fast curing.
Trimethylolpropane Triacrylate is used in printing ink formulations.
Trimethylolpropane Triacrylate improves curing speed and film strength in UV inks.
Trimethylolpropane Triacrylate is used in screen printing inks.
Trimethylolpropane Triacrylate supports sharp print definition and durable cured images.
Trimethylolpropane Triacrylate is used in flexographic inks.
Trimethylolpropane Triacrylate helps improve adhesion, hardness, and resistance properties.
Trimethylolpropane Triacrylate is used in inkjet UV inks.
Trimethylolpropane Triacrylate contributes to fast polymerization and durable printed layers.
Trimethylolpropane Triacrylate is used in adhesives.
Trimethylolpropane Triacrylate improves cohesive strength in UV-curable adhesive systems.
Trimethylolpropane Triacrylate is used in pressure-sensitive adhesive development.
Trimethylolpropane Triacrylate helps adjust tack, cohesion, and crosslinking balance.
Trimethylolpropane Triacrylate is used in sealant formulations.
Trimethylolpropane Triacrylate supports fast curing and improved mechanical strength.
Trimethylolpropane Triacrylate is used in dental materials.
Trimethylolpropane Triacrylate can function as a reactive crosslinking component in selected dental resin systems.
Trimethylolpropane Triacrylate is used in photopolymer resin formulations.
Trimethylolpropane Triacrylate helps create rigid and highly crosslinked polymer networks.
Trimethylolpropane Triacrylate is used in 3D printing resins.
Trimethylolpropane Triacrylate improves curing speed, dimensional stability, and final part hardness.
Trimethylolpropane Triacrylate is used in stereolithography resin systems.
Trimethylolpropane Triacrylate supports rapid layer formation under UV or visible light exposure.
Trimethylolpropane Triacrylate is used in gel coat formulations.
Trimethylolpropane Triacrylate helps improve surface hardness and resistance in composite finishes.
Trimethylolpropane Triacrylate is used in composite resin modification.
Trimethylolpropane Triacrylate increases crosslinking and mechanical strength in compatible systems.
Trimethylolpropane Triacrylate is used in optical coating materials.
Trimethylolpropane Triacrylate supports scratch resistance and clarity in properly formulated coatings.
Trimethylolpropane Triacrylate is used in protective films.
Trimethylolpropane Triacrylate improves durability, solvent resistance, and surface performance.
Trimethylolpropane Triacrylate is used in photoresist formulations.
Trimethylolpropane Triacrylate supports photopolymerization and pattern formation in selected systems.
Trimethylolpropane Triacrylate is used in electronics coating materials.
Trimethylolpropane Triacrylate helps produce fast-curing protective layers for electronic components.
Trimethylolpropane Triacrylate is used in wire and cable coating systems.
Trimethylolpropane Triacrylate supports abrasion resistance and rapid curing in protective coatings.
Trimethylolpropane Triacrylate is used in release coating formulations.
Trimethylolpropane Triacrylate helps adjust cured film strength and surface behavior.
Trimethylolpropane Triacrylate is used in laboratory polymer synthesis.
Trimethylolpropane Triacrylate serves as a trifunctional crosslinker in acrylic polymer networks.
Trimethylolpropane Triacrylate is used in hydrogel and network polymer research.
Trimethylolpropane Triacrylate supports studies requiring controlled crosslink density and rapid polymerization.
DESCRIPTION
Trimethylolpropane Triacrylate is the triacrylate ester of trimethylolpropane, and the three acrylate groups provide high functionality that strongly increases crosslink density during free-radical polymerization.
Trimethylolpropane Triacrylate reduces viscosity of oligomer-rich formulations, and because it reacts into the network, it supports 100% solids systems without VOC evaporation.
Trimethylolpropane Triacrylate increases hardness and chemical resistance, but higher crosslink density can reduce flexibility and increase shrinkage, so formulation balance is important.
Trimethylolpropane Triacrylate is typically stabilized with inhibitors to prevent premature polymerization during storage, and exposure to heat, light, or contamination can overcome inhibitor protection.
Trimethylolpropane Triacrylate can cause skin sensitization typical of acrylates, and repeated exposure can lead to allergic dermatitis, so PPE and exposure control are critical.
Trimethylolpropane Triacrylate should be used according to applicable regulations and good industrial hygiene practices for the target market and facility.
Trimethylolpropane Triacrylate should be stored in tightly closed containers away from heat and direct sunlight, and storage should minimize contamination with peroxides or radical initiators.
Trimethylolpropane Triacrylate should be handled with clean equipment because trace contamination can accelerate polymerization and change viscosity.
Trimethylolpropane Triacrylate should be kept away from strong oxidizers and reactive initiators unless used in controlled curing processes.
Trimethylolpropane Triacrylate is a trifunctional acrylate ester monomer.
Trimethylolpropane Triacrylate is commonly abbreviated as TMPTA.
Trimethylolpropane Triacrylate contains three acrylate groups capable of rapid polymerization.
Trimethylolpropane Triacrylate is widely used in UV-curable and electron-beam-curable systems.
Trimethylolpropane Triacrylate is typically supplied as a clear to slightly yellow liquid.
Trimethylolpropane Triacrylate has relatively low volatility compared with many small reactive monomers.
Trimethylolpropane Triacrylate has high reactivity because of its multifunctional acrylate structure.
Trimethylolpropane Triacrylate forms dense crosslinked polymer networks after curing.
Trimethylolpropane Triacrylate improves hardness and abrasion resistance in cured formulations.
Trimethylolpropane Triacrylate can improve chemical resistance and solvent resistance.
Trimethylolpropane Triacrylate can increase curing speed in radiation-curable systems.
Trimethylolpropane Triacrylate can reduce formulation flexibility if used at high levels.
Trimethylolpropane Triacrylate performance depends on photoinitiator selection, dosage, resin type, and curing energy.
Trimethylolpropane Triacrylate performance also depends on oxygen inhibition, film thickness, and substrate compatibility.
Trimethylolpropane Triacrylate is often blended with oligomers, reactive diluents, pigments, and additives.
Trimethylolpropane Triacrylate is selected when high crosslink density is required.
Trimethylolpropane Triacrylate should be stored with appropriate polymerization inhibitors.
Trimethylolpropane Triacrylate should be protected from heat, light, and contamination.
Trimethylolpropane Triacrylate should be kept in tightly closed containers.
Trimethylolpropane Triacrylate may polymerize if exposed to excessive heat or free-radical initiators.
Trimethylolpropane Triacrylate may irritate skin, eyes, and respiratory passages.
Trimethylolpropane Triacrylate may cause skin sensitization in susceptible individuals.
Trimethylolpropane Triacrylate should be handled with suitable ventilation and protective equipment.
Trimethylolpropane Triacrylate should be used according to supplier safety data and regulatory requirements.
Trimethylolpropane Triacrylate is valued for high reactivity, strong crosslinking ability, and durable cured performance.
PROPERTIES
Chemical Formula: C15H20O6
Molecular Weight: 296.32 g/mol
Common Name: Trimethylolpropane Triacrylate (TMPTA)
Chemical Type: Multifunctional acrylate monomer; reactive diluent; crosslinker
Appearance: Clear to pale yellow liquid
Odor: Mild acrylate odor
Solubility: Insoluble in water; soluble in many organic monomers and oligomers
Viscosity: Low to moderate; grade dependent; temperature dependent
Functionality: Tri-functional (three acrylate groups)
Reactivity: High in UV/EB and free-radical cure systems
Stability: Inhibited; can polymerize if heated, contaminated, or exposed to strong light
Storage Temperature: 5–25°C, tightly closed, protect from light
Shelf Life: Typically 6–18 months in original sealed packaging (supplier dependent)
FIRST AID
Inhalation:
Move to fresh air if vapors or mists are inhaled.
Seek medical attention if respiratory irritation persists.
Avoid breathing aerosols during spraying or curing operations.
Skin Contact:
Remove contaminated clothing and wash skin with soap and water.
Seek medical advice if irritation develops or if sensitization symptoms appear.
Avoid repeated skin contact because acrylates can cause allergic reactions.
Eye Contact:
Rinse cautiously with water for at least 15 minutes.
Remove contact lenses if present and easy to do, then continue rinsing.
Seek immediate medical attention if irritation persists.
Ingestion:
Rinse mouth with water and do not induce vomiting.
Seek medical attention if discomfort occurs or if a significant amount is swallowed.
Never give anything by mouth to an unconscious person.
Note to Physicians:
Treat symptomatically.
Consider acrylate sensitization potential.
Provide supportive care as needed.
HANDLING AND STORAGE
Handling:
Use appropriate PPE including nitrile gloves, safety glasses, and protective clothing.
Avoid skin contact because Trimethylolpropane Triacrylate can cause sensitization.
Use closed transfer or controlled pouring to minimize splashes and aerosol formation.
Ventilation:
Use general ventilation for normal handling.
Use local exhaust if spraying or mist generation is possible.
Avoid aerosol formation in enclosed spaces without adequate airflow.
Storage:
Store in tightly closed containers in a cool, dry place away from heat and direct sunlight.
Protect from light and contamination to prevent premature polymerization.
Keep away from strong oxidizers and from initiators unless used in controlled curing processes.
Spill and Leak Procedures:
Eliminate ignition sources and ventilate the area.
Contain spill with inert absorbent and collect into approved containers.
Prevent entry into drains and dispose of waste according to local regulations and facility procedures.
Handling Precautions:
Optimize formulation balance because high TMPTA levels can increase shrinkage and brittleness due to high crosslink density.
Control inhibitor and storage conditions because TMPTA can polymerize if inhibitor is depleted or if contaminated.
Use trained handling procedures for acrylate monomers to minimize sensitization risk and maintain safe operations.
