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IsoCore - Isocyanate Systems by Flamisol

IsoCore delivers high-purity isocyanates engineered for the production of rigid, flexible, and specialty polyurethane systems. Our portfolio supports consistent reactivity, strong physical properties, and excellent compatibility with modern polyol and blowing-agent technologies.

Products List: â€‹

MDI (Methylene Diphenyl Diisocyanate)

Polymeric and monomeric MDI for rigid foam, flexible foam, and CASE applications.


Polymeric MDI (pMDI)

  • NCO content: 30.5-32.0%

  • Viscosity: 150-250 cP at 25°C

  • Functionality: 2.7-3.0

  • Applications: Spray foam insulation, continuous panel systems, appliance foam, rigid pour-in-place

  • CAS: 9016-87-9

  • Regulatory: TSCA listed, REACH compliant

 

​Pure MDI (4,4'-MDI)

  • NCO content: 33.5-34.0%

  • Melting point: 37-40°C

  • Functionality: 2.0

  • Applications: Prepolymer production, elastomers, adhesives, coatings

  • CAS: 101-68-8

  • Regulatory: TSCA listed, REACH compliant

 

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Modified MDI (Quasi-Prepolymers)

  • NCO content: 22-29%

  • Viscosity: 50-500 cP at 25°C

  • Applications: Spray foam systems, molded foam, integral skin foam

  • Characteristics: Liquid at room temperature, reduced vapor pressure vs. pure MDI

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TDI (Toluene Diisocyanate)
Toluene-based isocyanates for flexible slabstock and molded foam production.

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TDI 80/20 (2,4-TDI / 2,6-TDI isomer blend)

  • NCO content: 48.0-48.5%

  • Viscosity: 3-5 cP at 25°C

  • Applications: Flexible slabstock foam, furniture cushioning, automotive seating

  • CAS: 26471-62-5

  • Regulatory: TSCA listed, REACH compliant


TDI 65/35 (2,4-TDI / 2,6-TDI isomer blend)

  • NCO content: 48.0-48.5%

  • Applications: Specialty flexible foam applications requiring modified reactivity

  • CAS: 26471-62-5

Modified MDI Prepolymers

Pre-reacted MDI-polyol systems for specialty applications requiring controlled reactivity.

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  • Low-Free MDI Prepolymers

    • NCO content: 20-27%

    • Free MDI monomer: <0.5%

    • Applications: Automotive interior trim, low-emission applications

  • Elastomer-Grade Prepolymers

    • NCO content: 8-18%

    • Applications: Cast elastomers, roller coatings, industrial wheels

Isocyanate Blends for Foams & Elastomers

Custom-formulated isocyanate systems combining MDI, TDI, and/or modified prepolymers for specific processing requirements.

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  • Spray foam B-side formulations (MDI + catalysts + surfactants + blowing agents)

  • High-resilience foam systems (TDI + co-reactants)

  • CASE blends (coatings, adhesives, sealants, elastomers)

 

Note: Blended systems require technical consultation to match processing equipment and performance targets.

APPLICATIONS:

Suitable for manufacturers in:


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Rigid Polyurethane Foams:
Spray foam insulation for residential and commercial construction. Continuous and discontinuous insulation panels (PIR/PUR boards). Appliance insulation (refrigerators, freezers, water heaters). Pour-in-place applications.

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Flexible Foams:
Slabstock foam for furniture, bedding, and carpet underlay. Molded foam for automotive seating and interior components. High-resilience (HR) foam for premium cushioning applications.

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CASE (Coatings, Adhesives, Sealants, Elastomers):
Two-component polyurethane coatings for industrial equipment, wood finishing, and protective layers. Construction adhesives and sealants. Transportation adhesives for automotive and aerospace. Cast elastomers for wheels, rollers, and seals.

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Spray Foam Insulation:
Open-cell and closed-cell spray polyurethane foam systems for thermal insulation and air sealing in residential, commercial, and industrial buildings.

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Insulation Panels (PIR/PUR):
Polyisocyanurate and polyurethane rigid boards for roofing, wall systems, and thermal barriers in construction.

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Automotive Seating & NVH Systems:
Flexible foam for seating, headrests, and armrests. Noise, vibration, and harshness (NVH) dampening materials. Interior trim components using integral skin foam technology.

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Footwear Polyurethanes:
MDI and TDI systems for polyurethane shoe soles, midsoles, and comfort footbeds requiring durability and cushioning.

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Industrial Adhesives & Binders:
Structural adhesives for laminating, bonding, and assembly in manufacturing, construction, and transportation industries.

Benefits:

Reactivity Control:
Isocyanate selection influences cream time, gel time, tack-free time, and cure profiles when formulated with appropriate polyol, catalyst, and surfactant systems. NCO content and functionality determine cross-link density and final foam properties.

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Bonding Performance:
MDI-based systems provide strong substrate adhesion in spray foam, panel lamination, and adhesive applications when reacted with polyols under specified temperature and humidity conditions.

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Polyol Compatibility:
Compatible with polyether polyols, polyester polyols, and specialty polyol blends across conventional, high-resilience, and rigid foam formulations.

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Processing Flexibility:
Available in liquid (modified MDI, TDI) and solid forms (pure MDI) to accommodate different processing equipment including high-pressure spray machines, low-pressure pour systems, and continuous slabstock lines.

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Mechanical & Physical Properties:
Isocyanate type, index ratio (NCO:OH), and formulation parameters influence final foam density, hardness, tensile strength, elongation, compression set, and dimensional stability.

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Blowing Agent Compatibility:
Works with physical blowing agents (HFO, HFC, hydrocarbons) and chemical blowing agents (water-CO2 reaction) in rigid and flexible foam systems.

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Regulatory Compliance:
All IsoCore products include:

  • Certificate of Analysis (COA) with NCO content, acidity, hydrolyzable chloride

  • Safety Data Sheet (SDS)

  • Technical Data Sheet (TDS)

  • TSCA certification (US EPA)

  • REACH pre-registration documentation (EU)

  • GHS-compliant labeling

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Technical Support:
Application-specific formulation guidance available. Our team can assist with isocyanate selection, index optimization, processing parameter development, and performance testing.

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US-Based Inventory:
Isocyanate systems stocked at regional warehouses (Houston TX, Los Angeles CA, Las Vegas NV) for same-week delivery.

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SAFETY & HANDLING:

Important Safety Information:

Isocyanates are reactive chemicals requiring proper handling, storage, and personal protective equipment (PPE).

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Respiratory Protection: MDI and TDI vapors can cause respiratory sensitization. Use appropriate ventilation and respiratory protection per OSHA standards.

Skin Protection: Avoid skin contact. Use impermeable gloves and protective clothing.

Storage: Store in tightly closed containers in cool, dry, well-ventilated areas. Protect from moisture.

Moisture Sensitivity: Isocyanates react with water, producing CO2 gas and urea byproducts that affect performance.

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Consult Safety Data Sheets (SDS) for complete handling, storage, and emergency response information.

Schedule Technical Consultation

TECHNICAL CONSULTATION

For assistance with:

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  • Isocyanate selection for specific foam types

  • NCO index optimization (stoichiometric balance)

  • Formulation development with polyols, catalysts, surfactants, blowing agents

  • Processing parameter adjustment (temperatures, pressures, mix ratios)

  • Performance testing and specification matching

  • Safety and handling training

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Contact our technical team to discuss your polyurethane system requirements.

Schedule Technical Consultation

REGULATORY COMPLIANCE:

  • All IsoCore products are evaluated for compliance with:

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  • TSCA — Toxic Substances Control Act (US EPA)

  • REACH — Registration, Evaluation, Authorization of Chemicals (EU)

  • OSHA — Occupational Safety and Health Administration standards for isocyanate handling

  • California Prop 65 — Safe Drinking Water and Toxic Enforcement Act

  • GHS — Globally Harmonized System of Classification and Labeling

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  • Flamisol provides complete documentation packages for customer compliance verification and regulatory audits.

Schedule Technical Consultation
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