Bulk Trimethylolpropane Triacrylate TMPTA CAS 15625-89-5 Supplier | Factory-Direct Pricing & Global Logistics

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The Guide to Trimethylolpropane Triacrylate (TMPTA CAS 15625-89-5): The Backbone of High-Performance UV Curing

In the fast-evolving world of industrial coatings, inks, and adhesives, manufacturers constantly seek raw materials that balance rapid processing with exceptional structural durability. Trimethylolpropane Triacrylate, commonly recognized by its chemical identifier CAS 15625-89-5 or simply TMPTA, stands out as a premier trifunctional monomer designed to meet these exact demands.
As a leading global chemical manufacturing plant, we engineered this technical guide to provide procurement officers, R&D chemists, and industrial distributors with a thorough breakdown of TMPTA’s properties, application ecosystems, and factory-direct advantages.

Name: Methyl L-Prolinate Hydrochloride

CAS: 2133-40-6

Purity: 98.5% min

MOQ: 25 KG

Sourcing Guide of TMPTA CAS 15625-89-5

Chemical Structure

Chemical Structure

Product Matrix: Technical Profile of TMPTA CAS 15625-89-5

Trimethylolpropane Triacrylate (TMPTA) is a low-volatility, low-viscosity aliphatic trifunctional acrylate monomer. Thanks to its three reactive acrylic unsaturated groups, it exhibits an exceptionally high crosslinking density during polymerization, transforming liquid formulations into robust, crosslinked polymer networks upon exposure to Ultraviolet (UV) light or Electron Beam (EB) radiation.
Key Technical Specifications
    • Chemical Name: Trimethylolpropane Triacrylate
    • CAS Registry Number: 15625-89-5
    • Molecular Formula: C15H20O6
    • Molecular Weight: 296.32 g/mol
    • Appearance: Clear, colorless to slightly yellowish transparent liquid
    • Viscosity (at 25°C): 50 – 100 mPa·s
    • Acid Value: ≤ 0.5 mg KOH/g
    • Water Content: ≤ 0.1%


 

Application

The versatility of TMPTA makes it an indispensable component across multiple heavy-duty and precision manufacturing sectors:
  • UV-Curable Coatings & Varnishes: TMPTA is widely integrated into wood coatings, automotive plastic parts coatings, and optical fiber finishes. It significantly accelerates cure speeds while delivering unmatched scratch and mar resistance.
  • High-Performance UV Inks: In lithographic, flexographic, and screen-printing inks, TMPTA acts as both a reactive diluent and a structural binder. It ensures sharp image reproduction, rapid drying times, and excellent adhesion to non-porous substrates like plastic film and metallic foils.
  • Advanced Adhesives and Sealants: It enhances the cohesive strength and thermal stability of radiation-curable adhesives used in electronic components, laminating films, and pressure-sensitive tapes.
  • Polymer Crosslinking Modifier: Beyond radiation curing, TMPTA serves as a co-agent in peroxide vulcanization of rubbers (such as EPDM and nitrile rubber) and modification of thermoplastics, upgrading their tensile strength and heat resistance.

FAQ

Q1: Is TMPTA compatible with all types of UV photoinitiators?

A: Yes. TMPTA displays outstanding compatibility with alpha-hydroxy ketones (like PI-184), acylphosphine oxides (like TPO or BAPO), and benzophenone derivatives. The choice depends on your specific coating thickness and curing source (Mercury lamp vs. UV-LED).

Q2: How does TMPTA impact the flexibility of a cured coating?

A: Because TMPTA is a trifunctional monomer, its high crosslinking density increases hardness and chemical resistance, which can sometimes reduce elasticity. To balance flexibility and impact resistance, we recommend blending it with monofunctional or difunctional acrylates (such as IBOA, TPGDA, or flexible urethane acrylate oligomers).

Q3: What is the standard lead time for international FCL orders?

A: For standard packaging (200kg drums or 1000kg IBCs), our typical dispatch time from the factory to the port of loading is 7–10 days. Transit times vary depending on the destination port.

Q4: Can I request a pre-shipment sample for lab testing?

A: Absolutely. We provide complimentary 100g to 500g validation samples along with the corresponding Safety Data Sheet (SDS) and COA for qualified commercial R&D labs.

Advanced Production Technology

Our state-of-the-art production facility utilizes a continuous, automated direct esterification process between trimethylolpropane (TMP) and acrylic acid.
  1. Precision Molecular Engineering: By employing proprietary catalytic systems, we minimize the formation of high-molecular-weight byproducts and residual ether impurities.
  2. Advanced Thin-Film Distillation: This step eliminates trace moisture and low-boiling fractions, ensuring a flashpoint that exceeds 110°C for safe processing and storage.
  3. DCS Automated Control: Our synthesis lines run on distributed control systems (DCS), mapping temperature, pressure, and feeding rates down to milliseconds to eliminate human operational error.

Product Advantages: Compared with Competitors

When sourcing TMPTA, subtle variations in monomer purity can result in catastrophic failures on your production line, such as premature gelling, discoloration, or brittle cracking. Here is how our premium-grade TMPTA outperforms standard market alternatives:
Performance MetricOur Factory-Direct TMPTAAverage Market CompetitorsIndustrial Benefit
Purity Profile≥ 98.5% (Chromatographic analysis)95.0% – 97.0%Lower residual odor, consistent cure speed, and reduced skin irritation hazards.
Color Index (APHA)≤ 3050 – 80Perfect optical clarity; zero yellowing in clear coats and white ink systems.
Inhibitor StabilityOptimized MEHQ matrix (100-200 ppm)Unregulated inhibitor levelsExtended 12-month shelf life without risking spontaneous polymerization or curing retardation.
Viscosity ConsistencyBatch-to-batch variation < 5%Fluctuating up to 20%Eliminates the need to constantly adjust solvent/diluent ratios in your automatic blending lines.

 

Plant Infrastructure & Scalable Production Capacities

We operate as an asset-heavy manufacturer, meaning you bypass intermediate trading companies and secure direct-from-source economics:
  • Annual Output Capacity: Our dedicated TMPTA production line yields over 15,000 metric tons annually, ensuring steady allocations even during global raw material shortages.
  • Global Compliance Standards: Our facility is fully certified under ISO 9001:2015 (Quality Management) and ISO 14001:2015 (Environmental Management). Our chemical profiles comply fully with European REACH registration, US TSCA, and Asian chemical inventories.

Industrial Packaging, Sealing & Global Freight Logistics

Handling specialized acrylates demands strict logistical discipline to prevent heat exposure and container contamination.
  • Heavy-Duty Industrial Packaging:
    • Steel Drums: 200 kg net weight, tightly sealed with internal anti-corrosive coatings. (80 drums / 16 MT per 20ft FCL)
    • IBC Totes: 1,000 kg net weight, UV-blocked high-density polyethylene (HDPE) containers reinforced with steel cages. (20 Totes / 20 MT per 20ft FCL)
    • ISO Tanks: For bulk industrial processing, up to 24,000 kg net weight capacities.
  • Controlled Logistics & Shipping: We maintain temperature-monitored warehouse zones. All sea freight shipments are stowed below deck, away from direct sunlight or heat sources.

 Quality Control and Warehousing Infrastructure 

Finished Product Quality Control

✅ Comprehensive quality control for every shipment prior to dispatch
✅Complete batch traceability system

Testing equipment

✅ In-house quality control laboratory
✅ Qualified personnel and a full range of testing equipment

Warehouse Facilities

✅ Finished goods warehouse: 300 m²
✅ Storage tank capacity: 50 tonnes
✅ Storage temperature range: 15–25°C
✅ Explosion-proof and anti-static design

sdlookchem Patent Certificate

Quality control documents provided with each batch партией

✅ COA (Certificate of Analysis)
✅ SDS (Safety Data Sheet)
✅ Certificate of Origin
✅ Packing List / Commercial Invoice

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Technical Support & Analytical Warranties

We do not just ship chemicals; we deliver operational continuity. Our comprehensive after-sales mechanism includes:
  • Batch Traceability: Every shipment is accompanied by a batch-specific Certificate of Analysis (COA). Retained samples of every batch are archived in our QC lab for 24 months.
  • On-Demand Formulation Support: If you face challenges with curing speed, shrinkage, or substrate wetting, our R&D chemists are available to consult on photoinitiator pairings and monomer ratios.
  • Rapid Discrepancy Resolution: In the rare event of a logistics breakdown or quality query, our technical response team initiates an investigation within 24 hours, utilizing independent 3rd-party testing if required to protect your business bottom line.

 

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