TCP (Tricresyl Phosphate) – High-Performance Flame Retardant Plasticizer for EPS

Product Overview

TCP, chemically known as Tricresyl Phosphate (CAS No. 1330-78-5), is a versatile Flame Retardant Plasticizer widely utilized in the Expanded Polystyrene (EPS) and plastics industries. As the leading EPS additive solution provider, Senthos supplies premium-grade TCP that combines excellent flame retardancy with superior plasticizing effects. It effectively improves the processing flow of EPS resins while contributing to the overall fire safety and durability of the finished foam products.


Detailed Technical Specifications (TDS)

We ensure our TCP maintains high purity and stable chemical properties for demanding industrial applications:

PropertyTechnical Standard
Product NameTricresyl Phosphate (TCP)
CAS Number1330-78-5
AppearanceClear, transparent liquid
Phosphorus Content≥ 8.4%
Acid Value (mg KOH/g)≤ 0.1
Specific Gravity (20°C)1.160 – 1.180
Flash Point≥ 225°C
Viscosity (25°C, mPa.s)50 – 70

Key Performance & Advantages in EPS

  • Dual-Function Efficiency: TCP acts as both an efficient Flame Retardant Plasticizer and a smoke suppressant. Its phosphorus-based chemistry creates a protective char layer during combustion, significantly inhibiting flame spread.

  • Enhanced Processability: It reduces the glass transition temperature of the polymer, improving the melt flow and making it easier to process complex EPS shapes and high-density boards.

  • Excellent Compatibility: Our TCP is highly compatible with EPS resins and other flame retardants like ST-130. It ensures uniform distribution within the bead without leaching or migration.

  • Hydrolytic Stability: It features low volatility and high resistance to water extraction, ensuring long-term performance even in humid environments.


Packaging, Storage & Logistics

  • Packaging: Standard 10KG paper bags.

  • Storage Requirements: Store in a cool, dry, and well-ventilated warehouse. Keep containers tightly closed when not in use. Consequently, avoid exposure to direct sunlight and high temperatures to maintain product purity.

  • Shelf Life: 24 months in original, unopened packaging.