Ethoxylated Trimethylolpropane Triacrylate CAS 28961-43-5

1. Ethoxylated trimethylolpropane triacrylate is primarily used as a trifunctional reactive diluent and crosslinking agent in ultraviolet (UV) and electron beam (EB) energy-curable coatings, inks, and adhesives . It is a key component in formulations for wood coatings, overprint varnishes, litho and screen inks, and paper coatings .
2. Ethoxylated trimethylolpropane triacrylate CAS 28961-43-5 serves as an improved version of trimethylolpropane triacrylate (TMPTA) , offering enhanced performance properties such as lower viscosity, greater flexibility, improved adhesion, low shrinkage, and good chemical resistance and weatherability in the cured film .
3. Applications of Ethoxylated trimethylolpropane triacrylate also extend to electronics (e.g., photoresists), acrylics, textile and plastic coatings, and composite materials, where it contributes to wear and corrosion resistance .

1. Store Ethoxylated trimethylolpropane triacrylate in a tightly sealed container in a cool, dry, and well-ventilated area . Recommended storage temperatures are below 40°C (104°F), and it should be protected from light, heat, and direct sunlight to prevent uncontrolled polymerization .
2. Keep Ethoxylated trimethylolpropane triacrylate away from strong oxidizing agents, alkalis, and acids . Contact with these materials or exposure to high temperatures or ignition sources must be avoided as they might initiate polymerization . The substance is not classified as flammable with a flash point >100°C .
3. Always Ethoxylated trimethylolpropane triacrylate CAS 28961-43-5 use appropriate personal protective equipment (PPE) including chemical-resistant gloves and safety goggles when handling Ethoxylated trimethylolpropane triacrylate . Use with adequate ventilation and avoid skin and eye contact . Suitable container materials include stainless steel, amber glass, or amber polyethylene .

1. Immediately contain the Ethoxylated trimethylolpropane triacrylate spill using inert, non-combustible absorbent material (e.g., sand) and prevent entry into drains or waterways .
2. Carefully collect Ethoxylated trimethylolpropane triacrylate CAS 28961-43-5 into a sealed, labeled chemical waste container for proper disposal according to local regulations . Wash thoroughly after handling spill material .
3. Personnel must wear suitable PPE during cleanup. Provide adequate ventilation and note that the substance is not classified as a dangerous good for transport by some regulations (UN3334) .

1. Ethoxylated trimethylolpropane triacrylate is classified as causing skin irritation (H315), serious eye damage (H318), and may cause an allergic skin reaction (H317) and respiratory irritation (H335) . Acute toxicity studies show a rabbit dermal LD50 >13,000 mg/kg .
2. Ethoxylated trimethylolpropane triacrylate is toxic to aquatic life with long-lasting effects (H411), with estimated chronic toxicity values for fish at 0.6 mg/L . Ethoxylated trimethylolpropane triacrylate CAS 28961-43-5 is not classified as flammable and has a vapor pressure of 32 Pa at 20°C .
3. Always consult the specific Safety Data Sheet (SDS) for Ethoxylated trimethylolpropane triacrylate for complete hazard information, first-aid procedures (P305+P351+P338 for eyes, P302+P352 for skin), and handling instructions. Precautionary statements include P261 (avoid breathing dust), P273 (avoid release to environment), and P280 (wear protective gloves/eye protection) .