Archives: Listings

Desmophen® C 1200

Desmophen® C 1200 is a high-grade building block used in polyurethane systems, particularly for coatings and sealants that require excellent weatherability, lightfastness, hydrolytic stability, and elasticity. Here's a detailed overview of its characteristics and applications:
Description
Desmophen® C 1200 is a linear aliphatic polycarbonate polyester. It is supplied as a solvent-free, medium-viscosity liquid.
Specification
- Hydroxyl content: 1.7 ± 0.2 % (Method: M023-DIN 53240-2)
- Viscosity at 23 °C: 16,500 ± 2,500 mPa·s (Method: M014-ISO 3219/A.3)
- Color value (Hazen): ≤ 120 (Method: M017-EN 1557)
Other Data (General Information)
- Equivalent weight: Approx. 1,000
- Density at 20 °C: Approx. 1.10 g/ml (DIN EN ISO 2811-2)
- Water content: Approx. 0.05 % (DIN 51 777/1)
- Acid number: Approx. 0.1 mg KOH/g (DIN EN ISO 2114)
- Freezing temperature: Approx. 15 °C (ISO 3016)
Solubility / Thinnability
Desmophen® C 1200 is generally compatible with esters, ketones, aromatic hydrocarbons, and ether esters. However, the storage stability of solutions should be tested. Only PU grade solvents (< 0.05 % water, free of other reactive impurities) should be used.
Compatibility
Desmophen® C 1200 is compatible with many other Desmophen grades, but compatibility should always be tested beforehand.
Properties / Applications
Desmophen® C 1200 is used as a building block in combination with polyisocyanates for the formulation of polyurethane systems. It is suitable for both interior and exterior applications, providing:
- Very good weatherability
- Lightfastness
- Hydrolytic stability
- Elasticity
Storage
- Conditions: Store in the original sealed Covestro container at temperatures between 0 - 30 °C.
- Protection: Protect from moisture, heat, and foreign materials.
- Note: The product is hygroscopic and crystallizes at temperatures ≤ 15 °C. Crystals can be melted by carefully heating to a maximum of 60 °C.

DABCO® 33 LV

DABCO® 33 LV is a versatile tertiary amine catalyst used primarily in the production of polyurethane foams. Here's a detailed overview of its characteristics and applications:
Description
DABCO® 33 LV is a catalyst that promotes the urethane (polyol-isocyanate) reaction. It is a mixture consisting of:
- 33% triethylene diamine
- 67% dipropylene glycol
Special Properties/Highlights
- Multi-purpose amine catalyst: Suitable for various applications in the polyurethane industry.
- Gelation catalysis: Effective in promoting the gelation process in foam formulations.
- Easy handling: Its liquid form makes it user-friendly in processing.
Applications
DABCO® 33 LV is utilized in the manufacture of all types of polyurethane foam, both flexible and rigid. It is also used in CASE (coatings, adhesives, sealants, and elastomers) applications. For foam formulations, DABCO® 33 LV can replace DABCO® CRYSTALLINE at a ratio of 3:1. For example, 0.3 parts per hundred parts polyol (pphp) of DABCO® 33 LV replaces 0.1 pphp of DABCO® CRYSTALLINE.
Recommended Storage Conditions
- Shelf Life: At least 24 months from the date of manufacture.
- Storage Temperature: Optimal between 10 °C and 30 °C.
- Storage: Should be kept in factory-packed containers and protected from extreme weather conditions, especially heat and moisture. Avoid temperatures outside the recommended range.
Hazardous Goods Classification
Information on classification, labelling, protective measures, and safety instructions for storage, handling, and accident response are provided in the safety data sheets.
Physical Properties
- Appearance: Colourless to amber liquid
- Flash Point (PMCC): 110 °C
- Viscosity (25 °C): 125 mPa·s
- Density (21 °C): 1.03 g/cm³
- Calculated OH Number: 560 mg KOH/g
- Water Solubility: Soluble
Summary
DABCO® 33 LV is a highly effective and versatile tertiary amine catalyst suitable for various polyurethane foam applications, offering easy handling and excellent performance in promoting the urethane reaction. Proper storage and handling are essential to maintain its efficacy and ensure safety.

Disperbyk 163

DISPERBYK-163 is a wetting and dispersing additive manufactured by BYK-Chemie GmbH. It is primarily used in solvent-borne coatings and pigment concentrates to stabilize various types of pigments. Here is a comprehensive overview of its properties, applications, and usage instructions:
Product Information
Composition
- Type: Solution of modified polyurethane
Typical Properties
- Amine Value: 10 mg KOH/g
- Density (20°C): 0.99 g/ml
- Non-Volatile Matter (20 min., 150°C): 45%
- Solvents: Xylene/Butylacetate/Methoxypropylacetate (3/1/1)
- Flash Point: 28°C
Storage and Transportation
- Handling: Separation or turbidity may occur at temperatures below 0°C. Warm to 20°C and mix well.
Special Note
- Organic Pigments: Some organic pigments' after-treatment may reduce the additive's efficiency. Testing with untreated pigments of the same type may be beneficial.
- Coil Coatings: The interaction of this cationic additive with the acid catalyst should be considered. Free acids or epoxy-blocked acids are preferable over amine-blocked acids. To avoid issues, consider using additives from the DISPERBYK-170 product line.
Applications
Coatings Industry
- Special Features and Benefits:
  - Deflocculates Pigments: Stabilizes pigments by steric hindrance and provides equal electrical charge, preventing co-flocculation.
  - Improves Coating Properties: Increases gloss, color strength, transparency, and hiding power while reducing millbase viscosity.
- Recommended Use:
  - Broad compatibility for solvent-borne formulations.
  - Suitable for retroactive batch correction.
  - For new formulations, consider using DISPERBYK-2163 and DISPERBYK-2164.
Recommended Levels
- Amount of Additive Based on Pigment:
  - Inorganic Pigments: 15-20%
  - Titanium Dioxide: 4-5%
  - Organic Pigments: 30-60%
  - Carbon Blacks: 80-100%
Optimal levels should be determined through laboratory tests.
Incorporation and Processing Instructions
- Incorporation:
  - Must be incorporated into the millbase before adding pigments.
  - Pre-mix resin and solvent components, then slowly add the additive while stirring continuously.
  - Ensure the additive is fully distributed before adding pigments.
- Post-Addition:
  - Possible for repairing faulty batches if added slowly and under high shear forces.

Finma-Sorb 430 PR

Finma-Sorb 430PR is a molecular sieve paste produced by FINMA GmbH. It is designed for the removal of moisture in water-sensitive applications, such as two-component (2K) polyurethane systems. Here is a detailed overview of its properties, applications, and handling instructions:
Description and Application
- Purpose: Finma-Sorb 430PR is primarily used to adsorb water molecules in various applications, particularly in 2K polyurethane systems. Moisture can be introduced through raw materials and ambient humidity, leading to undesirable reactions like degassing and foam formation. The paste helps prevent these issues by selectively adsorbing moisture.
- Advantages:
  - Ready-to-use with optimized dispersing fineness.
  - Free-flowing and dust-free operation, which facilitates handling and dosing.
  - Protected from contamination, ensuring high activity.
Specifications
- Solid Content: 50 ± 2%
- Pot Life: ≥ 50 minutes
Typical Data (General Information, Not Part of the Specification)
- Pore Size: 3 Å
- Appearance: Light, viscous paste
- Grain Fineness: ≤ 50 µm
- Viscosity at 20°C: ≤ 18,000 mPas
- Hydroxyl Value: Approx. 80 mg KOH/g
- Capacity of Absorption: ≥ 10% (based on active substance at 80% relative humidity and 25°C)
Storage
- Conditions: Store in original, closed packaging at room temperatures below 30°C with low relative humidity.
- Shelf Life: Should not be stored for more than six months after shipment.
- Preparation for Use: It is recommended to homogenize the paste by stirring before use.
Additional Notes
- Technical Advice: The datasheet is intended to provide technical advice but is not binding and does not claim to be complete. The data provided does not represent a characteristic warranty.
- User Responsibility: Customers are responsible for examining the product's suitability for their intended purposes and procedures. This includes the inspection of incoming goods.

FINMA

Desmophen® T 460

Desmophen® T 460 is an amine-based polyfunctional polyether polyol produced by Covestro, primarily used in conjunction with isocyanates for the production of polyurethane products. Here is a detailed overview of its properties and applications:
Product Characteristics
- Type: Amine-based polyfunctional polyether polyol
- Appearance: Reddish brown liquid
Specifications
- Hydroxyl Number: 395 - 435 mg KOH/g (PET – 11 – 01)
- Water Content: max. 0.15 % by wt. (PET – 19 – 01)
- Viscosity at 25 °C: 6500 - 9500 mPa·s (PET – 10 – 01)
Additional Data
- Density at 20 °C: approx. 1.10 g/cm³ (DIN 51757)
Applications
Desmophen® T 460 is used in the formulation of polyurethane products, which are widely used in coatings, adhesives, sealants, and elastomers. The polyol can be combined with various isocyanates to produce flexible and durable polyurethane materials.
Storage and Handling
- Storage Conditions:
  - Store in original, sealed Covestro containers.
  - Recommended storage temperature: 20 – 40 °C.
  - Protect from moisture, heat, and foreign materials.
- Shelf Life: Covestro guarantees that the product will meet its specifications for twelve months from the date of shipment if stored properly. After this period, the product should be tested to confirm its quality before use.

Desmophen 1400 BT

Desmophen® 1400 BT is a trifunctional polypropylene polyether polyol produced by Covestro. It is designed for use in formulating low-solvent polyurethane coatings, adhesives, and sealants, in combination with Desmodur® products. Here is a detailed overview of its properties and applications:
Product Characteristics
- Type: Trifunctional polypropylene polyether polyol
- Appearance: Pale-colored, low-viscosity liquid
Specifications
- Hydroxyl Number: 400 ± 20 mg KOH/g (PET-11-01)
- Viscosity (25 °C): 370 ± 40 mPa·s (PET-10-01)
- Acid Number: max. 0.1 mg KOH/g (PET-01-01)
- Water Content: ≤ 0.05 % by wt. (PET-19-01)
Additional Data
- OH Equivalent Weight: approx. 140 g
- Hydroxyl Content: 12.1 ± 0.6 % by wt.
Applications
Desmophen® 1400 BT is suitable for creating:
- Low-solvent elastic coatings
- Adhesives
- Sealants
It can be combined with various Desmodur® products and thinned with solvents such as esters, ketones, and aromatics. Only polyurethane-grade solvents with less than 0.05% water should be used to ensure proper performance.
Storage and Handling
- Storage Conditions:
  - Store in original, sealed Covestro container.
  - Recommended storage temperature: 15 - 25 °C.
  - Protect from moisture, heat, and foreign materials.
- Moisture Sensitivity: The product is sensitive to moisture and should be kept tightly sealed in its original container to avoid degradation.
- Shelf Life: Covestro guarantees that the product will meet its specifications for twelve months from the date of shipment if stored properly. After this period, the product may still meet specifications, but testing is recommended to confirm its quality.
Safety and Compliance
- Disposal: Follow the guidelines provided in the current Safety Data Sheet (SDS).
- Labeling and Statutory Requirements: The product datasheet must be used in conjunction with the latest edition of the corresponding SDS for detailed safety, handling, and regulatory information.
- Usage Disclaimer: Covestro does not recommend using this product for medical devices or other specifically regulated applications without prior consultation and agreement. Users must conduct their own testing to determine the suitability of the product for their specific applications, considering technical, health, safety, and environmental factors.

Desmoseal S XP 2636

Desmoseal® S XP 2636 is an aliphatic silane-terminated prepolymer produced by Covestro. It is primarily used as a binder for creating highly flexible adhesives, sealants, and coatings. Here is a detailed breakdown of its characteristics and specifications:
Product Characteristics
- Type: Aliphatic silane-terminated prepolymer
- Appearance: Colorless to yellowish polymer preparation
Specifications
- Viscosity at 23 °C: 30,000 - 50,000 mPa·s (ISO 3219/A.3)
Additional Properties
- Density at 20 °C: Approx. 1.007 g/ml (DIN 51757)
- Flash Point: 156 °C (ISO 2719)
- Pour Point: -21 °C (ISO 3016)
Applications
Desmoseal® S XP 2636 is suitable for use in moisture-curing one-component systems. These systems cure without bubbles or blisters when processed correctly.
Storage and Handling
- Storage Conditions:
  - Store in original, sealed Covestro container.
  - Recommended storage temperature: Room temperature (approx. 23 °C).
  - Protect from moisture, heat, and foreign materials.
- Moisture Sensitivity: The product is sensitive to moisture and should be kept tightly sealed in its original container. Elevated storage temperatures (above 30 °C) can increase viscosity, so the product should be stored in a cool environment.
- Shelf Life: Covestro guarantees the product will meet specifications for six months from the date of shipment if stored properly. After six months, the product may still be usable, but testing is recommended to confirm it meets specifications.
Safety and Compliance
- Labeling and Safety Requirements: The product datasheet is valid only when used with the latest Safety Data Sheet (SDS), which provides information on classification, labeling, safety measures, toxicity, and ecological effects.
- Usage Disclaimer: Covestro disclaims liability for the product's use in medical devices or other regulated applications without prior agreement. Users must conduct their own testing to determine suitability for specific applications, particularly those involving health, safety, and environmental concerns.

TIB KAT 423

TIB KAT® 423 is a specialized liquid catalyst blend manufactured by TIB Chemicals AG. Here are the key details about TIB KAT 423:
Product Description:
- Name: TIB KAT 423
- Type: Liquid catalyst blend
- Formulation: Based on a dioctyltinoxide (DOT) formulation
Applications:
- Curing Agent for Silicones and Silane-Terminated Polymers:
  - Specifically designed for curing 1K MS (moisture-sensitive) Silyl systems.
  - Used in the curing of alkoxy-based RTV (Room Temperature Vulcanizing) silicones.
Chemical Composition:
- Formula: DOT-silane blend
Physical Properties:
- State: Liquid
- Solubility: Miscible with alcohols; undergoes hydrolysis in water
Specifications:
- Tin Content: > 21.5 wt.-%
- Color (Gardner): < 5 (indicating low color intensity)
Storage and Handling:
- Shelf Life: Can be stored for at least 6 months from the date of delivery if kept closed in the original packaging.
- Storage Conditions: Store at ambient temperature in a dry place protected against temperature fluctuations and excessive humidity.
- Moisture Sensitivity: TIB KAT 423 is sensitive to moisture; minimize contact especially under high humidity conditions to prevent hydrolysis, which can decrease flash points.
- Recommendation: Nitrogen inertization of once opened drums is advised to maintain product integrity.

Archives: Listings

Desmophen® C 1200

Description

Specification

Other Data (General Information)

Solubility / Thinnability

Compatibility

Properties / Applications

Storage

DABCO® 33 LV

Description

Special Properties/Highlights

Applications

Recommended Storage Conditions

Hazardous Goods Classification

Physical Properties

Summary

Disperbyk 163

Product Information

Composition

Typical Properties

Storage and Transportation

Special Note

Applications

Coatings Industry

Recommended Levels

Incorporation and Processing Instructions

Finma-Sorb 430 PR

Description and Application

Specifications

Typical Data (General Information, Not Part of the Specification)

Storage

Additional Notes

FINMA

Desmophen® T 460

Product Characteristics

Specifications

Additional Data

Applications

Storage and Handling

Desmophen 1400 BT

Product Characteristics

Specifications

Additional Data

Applications

Storage and Handling

Safety and Compliance

Desmoseal S XP 2636

Product Characteristics

Specifications

Additional Properties

Applications

Storage and Handling

Safety and Compliance

TIB KAT 423

Product Description:

Applications:

Chemical Composition:

Physical Properties:

Specifications:

Storage and Handling:

TIB Chemicals