Description

Polythioether Polymer With H12Mdi is a high-performance, sulfur-containing polymer synthesized from hydrogenated methylene diphenyl diisocyanate (H12MDI). This specialized material is valued for its exceptional chemical resistance, low moisture permeability, and excellent adhesion properties, making it a critical component in demanding industrial applications. It is primarily sought by manufacturers in the advanced coatings, sealants, and specialty adhesives sectors who require durable, protective materials for harsh environments.

Application

• High-Performance Sealants and Adhesives: Used as a base polymer in formulations requiring superior chemical, fuel, and solvent resistance for aerospace, automotive, and marine applications.
• Protective and Anti-Corrosion Coatings: Serves as a key resin in industrial and marine coatings that protect metal substrates from corrosive chemicals, saltwater, and extreme weather.
• Potting and Encapsulation Compounds: Employed in electronic and electrical applications where moisture barrier properties and thermal stability are critical.
• Elastomer and Rubber Modification: Acts as an impact modifier or property enhancer in specialized rubber compounds to improve oil and chemical resistance.
• Composite Matrix Material: Utilized in the production of fiber-reinforced composites for applications demanding high strength-to-weight ratios and environmental durability.
• Fuel-Resistant Gaskets and Liners: A primary material for components in fuel handling systems due to its low swell and degradation in hydrocarbon environments.

Basic Information

Product Name	Polythioether Polymer With H12Mdi
CAS No.	83346-49-0
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Hydrogenated MDI-based Polythioether; H12MDI Polythioether; Poly(thioether) from H12MDI; Sulfur-containing Polyurethane Pre-polymer; Thiokol-type Polymer (H12MDI); 4,4'-Methylenebis(cyclohexyl isocyanate) Polythioether; Hydrogenated Methylenediphenyl Diisocyanate Polythioether; PTE-H12MDI
EINECS	Contact for details

Quality Control

Our Polythioether Polymer With H12Mdi is manufactured under strict process controls to ensure batch-to-batch consistency and performance reliability. Quality is verified through a series of analytical tests including viscosity, isocyanate (NCO) content, and specific gravity measurements. A Certificate of Analysis (COA) detailing the specifications for each lot is provided to guarantee the material meets the agreed-upon parameters for your application.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept under a dry, inert atmosphere (e.g., nitrogen blanket) after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Clear, viscous liquid
Color (Gardner)	≤ 3
Viscosity @ 25°C	Contact for details
NCO Content	Contact for details
Specific Gravity @ 25°C	Contact for details
Moisture Content (Karl Fischer)	≤ 0.05%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.