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PHOTOMER 4061 is a low-viscosity, difunctional acrylate that helps formulators adjust the consistency of radiation-curable systems while contributing reactive groups to the cured polymer network.
PHOTOMER 4061 combines good solvency for compatible oligomers and prepolymers with an effective cure response, supporting the formation of hard, flexible, and glossy films.
PHOTOMER 4061 is used across printing inks, inkjet formulations, industrial coatings, electronics, and adhesives, where viscosity reduction and cured-film performance are key formulation requirements.
CAS Number: 42978-66-5
EC Number: 256-032-2
Molecular Formula: C15H22O6
Molecular Weight: 300.3 g/mol
Synonyms: Diacrylate of tripropylene glycol, Tripropylene glycol bis(acrylate), Tripropylene glycol di-2-propenoate, Acrylic acid, tripropylene glycol diester, Propylene glycol oligomer diacrylate, Diacrylic ester of tripropylene glycol, UV-curable diacrylate monomer, Radiation-curable diacrylate diluent, Reactive diacrylate diluent, Multifunctional acrylate monomer, Aliphatic diacrylate monomer, Tripropylene glycol diacrylic ester
PHOTOMER 4061 is a multifunctional acrylate monomer used as a reactive diluent in UV- and EB-radiation curable coatings, inks, and adhesive formulations.
PHOTOMER 4061 is supplied as a clear, low- to medium-viscosity liquid and is designed to reduce formulation viscosity while contributing to fast cure speed and high crosslink density.
PHOTOMER 4061 enhances hardness, chemical resistance, and abrasion resistance in cured films, while maintaining good adhesion to a variety of substrates.
PHOTOMER 4061 is commonly applied in industrial coatings, printing inks, overprint varnishes, and graphic arts, where rapid curing, durable surface properties, and efficient processing are required.
PHOTOMER 4061 is a difunctional acrylate of low viscosity, low odour and moderate skin irritancy.
A reactive monomer with good cure response, PHOTOMER 4061 forms films that are flexible, hard and glossy.
PHOTOMER 4061 exhibits good solvency and viscosity reducing characteristics with typical radiation curable oligomers and prepolymers.
PHOTOMER 4061 is a difunctional acrylate of low viscosity and odor.
PHOTOMER 4061 is a reactive monomer with good cure response, it forms films that are flexible, hard and glossy.
PHOTOMER 4061 exhibits good solvency and viscosity reducing characteristics with typical radiation curable oligomers and prepolymers.
PHOTOMER 4061 can generate homopolymers of moderate high tensile strength and reduced shrinkage.
PHOTOMER 4061 possesses reactivity, hardness, flexibility, yellowing resistance, adhesion and pigment wetting properties.
PHOTOMER 4061 is recommended for use in UV/EB topcoats for paper, wood, metals and flexible plastic films, clear coatings, overprint varnishes and pigmented systems where low viscosities are required to ensure proper flow out during high-speed processing.
PHOTOMER 4061 has a shelf life of 12 months.
Applications of PHOTOMER 4061:
As a general, all-purpose reactive diluent, PHOTOMER 4061 finds use in UV/EB topcoats, clear coatings and pigmented systems where low viscosities are required to ensure proper flow out during high speed processing.
Formulated product properties will depend on the actual reactive monomers, oligomers and additives utilized.
UV- and EB-curable coatings:
PHOTOMER 4061 is used in radiation-curable industrial and protective coatings to reduce viscosity and improve hardness, chemical resistance, and abrasion resistance of cured films.
Printing inks and overprint varnishes:
PHOTOMER 4061 is applied in UV-curable printing inks and overprint varnishes to enhance cure speed, surface durability, and print performance.
Graphic arts:
PHOTOMER 4061 is used in graphic arts applications where fast curing, good surface hardness, and resistance to wear are required.
Adhesives:
PHOTOMER 4061 is incorporated into UV-curable adhesive formulations to improve crosslink density, bond strength, and curing efficiency.
Wood and furniture finishes:
PHOTOMER 4061 is used in radiation-curable wood coatings to achieve hard, scratch-resistant surfaces with good adhesion.
Plastic and film coatings:
PHOTOMER 4061 is suitable for coatings on plastic substrates and films, providing durable, fast-curing finishes.
Industrial finishing systems:
PHOTOMER 4061 is used in high-performance finishing formulations where low viscosity, rapid cure, and robust mechanical properties are essential.
Features and Benefits of PHOTOMER 4061:
The neat monomer on UV cure generates homopolymers of moderate high tensile strength and reduced shrinkage.
PHOTOMER 4061's usefulness in coatings is also reflected by the excellent flexibility, abrasion and scuff resistance developed from this monomer on various substrates.
PHOTOMER 4061 particularly useful in UV/EB curable overprint varnishes and topcoats for paper, metals and flexible plastic films.
PHOTOMER 4061 offers a combination of low viscosity and high reactivity, allowing it to act as an efficient reactive diluent in UV- and EB-curable formulations while contributing directly to film formation.
PHOTOMER 4061's multifunctional acrylate structure promotes high crosslink density, resulting in fast curing, increased hardness, and excellent chemical and abrasion resistance in the cured coating.
PHOTOMER 4061 also improves adhesion to a variety of substrates and enhances processing efficiency, making it well suited for high-performance coatings, inks, and adhesive systems that require durable surfaces and rapid production speeds.
Stability and Reactivity of PHOTOMER 4061:
Chemical stability:
PHOTOMER 4061 is chemically stable under normal conditions of use, handling, and storage when protected from heat, light, and contamination.
Reactivity:
PHOTOMER 4061 contains acrylate functional groups and is reactive under ultraviolet (UV) or electron beam (EB) radiation, undergoing rapid polymerization during curing.
No hazardous reactions occur under normal storage conditions.
Conditions to avoid:
Avoid exposure to heat, direct sunlight, UV radiation, sparks, and sources of free radicals that may cause premature polymerization.
Incompatible materials:
Strong oxidizing agents, strong acids, strong bases, and free-radical initiators.
Hazardous decomposition products:
Thermal decomposition may produce carbon oxides (CO, CO₂) and irritating organic vapors.
Handling and Storage of PHOTOMER 4061:
Handling:
Handle in accordance with good industrial hygiene and safety practices.
Avoid skin and eye contact and avoid inhalation of vapors or mists.
Storage:
Store in tightly closed containers in a cool, dry, and well-ventilated area.
Storage conditions:
Protect from heat, direct sunlight, and sources of UV radiation.
Store with polymerization inhibitors if supplied.
Packaging materials:
Use original or compatible containers such as stainless steel or approved plastic materials.
Shelf life:
Stable for extended periods when stored under recommended conditions.
First Aid Measures of PHOTOMER 4061:
Inhalation:
Remove the exposed person to fresh air.
If respiratory irritation or discomfort persists, seek medical attention.
Skin contact:
Wash skin thoroughly with soap and water.
Remove contaminated clothing and wash before reuse.
Seek medical attention if irritation develops.
Eye contact:
Rinse cautiously with water for several minutes while holding eyelids open.
Remove contact lenses if present and easy to do.
Seek medical attention if irritation persists.
Ingestion:
Rinse mouth with water.
Do not induce vomiting.
Seek medical advice if discomfort occurs.
Most important symptoms:
Skin and eye irritation; mild respiratory irritation from vapors or mists.
Firefighting Measures of PHOTOMER 4061:
Suitable extinguishing media:
Water spray, foam, dry chemical powder, or carbon dioxide (CO₂).
Specific hazards:
Combustible liquid; may polymerize or burn when exposed to fire, releasing irritating fumes.
Protective equipment for firefighters:
Self-contained breathing apparatus and full protective clothing.
Special precautions:
Cool containers exposed to fire with water spray to prevent rupture or uncontrolled polymerization.
Accidental Release Measures of PHOTOMER 4061:
Personal precautions:
Avoid skin and eye contact.
Ensure adequate ventilation.
Wear appropriate personal protective equipment.
Environmental precautions:
Prevent large quantities from entering drains, surface water, or soil.
Methods for cleanup:
Absorb spilled material with inert absorbent materials such as sand, earth, or absorbent pads.
Collect into suitable containers for disposal according to local regulations.
Additional advice:
Clean contaminated surfaces with detergent and water after material removal.
Exposure Controls / Personal Protective Equipment of PHOTOMER 4061:
Occupational exposure limits:
Not established.
Engineering controls:
Provide adequate general or local exhaust ventilation to control vapor or mist exposure.
Respiratory protection:
Not normally required under adequate ventilation.
Use an appropriate respirator if exposure limits are exceeded.
Hand protection:
Chemical-resistant gloves recommended.
Eye protection:
Safety glasses or goggles recommended.
Skin protection:
Protective clothing as needed to prevent prolonged contact.
Hygiene measures:
Wash hands thoroughly after handling.
Avoid eating, drinking, or smoking in work areas.
Identifiers of PHOTOMER 4061:
Chemical Name: Tripropylene glycol diacrylate
Molecular formula: C15H22O6
Molecular weight: 300.3 g/mol
CAS No.: 42978-66-5
EINECS No.: 256-032-2
Properties of PHOTOMER 4061:
Physical state: Liquid
Appearance: Clear
Color: Colorless to pale yellow
Odor: Mild, characteristic
Chemical nature: Multifunctional acrylate monomer
Functional groups: Acrylate functionalities (radiation-curable)
Viscosity: Low to medium viscosity (temperature dependent)
Density: Typically around 1.05–1.15 g/cm³ at 25 °C
Volatility: Low
