Description

Desmophen 670 is a high-performance polyol resin widely used in the formulation of advanced polyurethane coatings and adhesives. This product is valued for its excellent mechanical properties, chemical resistance, and versatility in creating durable, high-quality finishes. It is essential for manufacturers in the industrial coatings, automotive refinishing, and specialty adhesives sectors seeking to enhance product performance and durability. The compound is identified by CAS No. 81584-55-6.

Application

• Primary component in high-performance two-component polyurethane (2K-PU) coatings for industrial equipment and machinery.
• Formulation of automotive refinish paints and OEM clearcoats requiring excellent gloss retention and weatherability.
• Base resin for elastic, abrasion-resistant coatings on plastics, flooring, and sports surfaces.
• Key raw material in the production of specialty adhesives and sealants with strong bonding properties.
• Used in corrosion-resistant protective coatings for marine, aerospace, and infrastructure applications.
• Formulation of UV-stable topcoats for exterior architectural and decorative applications.

Basic Information

Product Name	Desmophen 670
CAS No.	81584-55-6
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Polyether polyol 670; Aliphatic polyester polyol; Hydroxyl-functional polyester; Polyurethane polyol resin; PU polyol 670; Bayer Desmophen 670; Polyol for 2K PU coatings
EINECS	Contact for details

Quality Control

Our Desmophen 670 is produced under a strict quality management system to ensure batch-to-batch consistency and performance. Each lot is tested against key parameters including hydroxyl value, viscosity, acid value, and water content. Certificates of Analysis (COA) documenting these specifications are provided with every shipment to guarantee compliance with your formulation requirements.

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). Keep the container tightly sealed when not in use to prevent moisture absorption, which can affect product performance. Keep away from heat and open flame.

Specification

Item	Specification
Appearance	Clear, viscous liquid
Color (Gardner)	≤ 2
Hydroxyl Value (mg KOH/g)	Contact for details
Viscosity at 25°C (mPa·s)	Contact for details
Acid Value (mg KOH/g)	≤ 1.0
Water Content (%)	≤ 0.1
Identification (IR)	Conforms

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