Knowde Enhanced TDS
Identification & Functionality
- Product Type
- Technologies
Features & Benefits
- Labeling Claims
- Ready-to-Use Product Features
Applications & Uses
- Applications
- Application Method
- Compatible Substrates & Surfaces
- Adhesive Application
Agitation – We recommend stirring Chemitac 4 before the application to avoid settling.
Dilution – We recommend the dilution be always made with Methanol or Ethanol 99º GL. Dilution of the product depends upon the type of application.- Dip – 100-500% v/v.
- Brush/Roll – 100-500% v/v.
- Spray – 100-500% v/v.
Application Layer – The film obtained by applying Chemitac 4 is thin and colorless. The layer thickness should be 1-4 microns.
Drying – Drying time is usually 30-45 minutes at room temperature. If it is necessary to reduce drying time, we recommend using circulating air at 70ºC for 15 minutes maximum. Check the purity of drying air to avoid contamination. The adhesive film should be completely dry before vulcanization.
The application layer and drying time values are to be used as reference. They may deviate based on processing conditions. For more details and guidance, please contact us at
tech.support@chemitac.com.
Layover time – Coated parts should be vulcanized on the application day of the adhesive.
Properties
- Physical Form
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Bonding Temperature Range | 150 - 200 | ºC | — |
| Diluents | Methanol/ Ethanol 99º GL | — | — |
| Non-volatile solids (2h at 70°C) | max. 18 | % | — |
| Specific Gravity (at 25°C) | 890 | g/cm3 | — |
| Viscosity (# 4 at 25°C) | 12 | — | Ford Cup |
| Viscosity (Brookfield at 25°C #2 spindle at 30 rpm.) | 10 | cPs | — |
Regulatory & Compliance
- Certifications & Compliance
Technical Details & Test Data
- Surface Preparation
Surface preparation comprises two steps:
- Cleaning – Solvent degreasing or alkaline cleaning methods should be used to remove oils, greases and dirt. Cleaning solutions should be kept free from contamination and replaced when necessary.
- Surface treatment – In order to achieve good adhesion results, the surface must be either mechanically or chemically treated before the application of the adhesive.
- Chemical treatment – Phosphatizing, anodizing and KTL coatings are the most used methods.
- Mechanical treatment – We recommend grit blasting the surface to a roughness (Rz) greater than 15 microns. Steel grit should be used for ferrous metals such as steel and iron; for other nonferrous metals, the use of aluminum oxide is recommended. Care should be taken to maintain grits clean. Blasting residues should be removed before the application of the adhesive. Layover time between blasting and adhesive application should be kept to a minimum in order to avoid oxidation.
Storage & Handling
- Shelf Life
- 2 years
- Storage
Keep the container tightly closed and away from heat sources. Maximum temperature storage is 25ºC.