Chemitac 6 is a thermoreactive adhesive for bonding AEM and FKM to rigid substrates. Chemitac 6 is a heavy metal free product.

Product Type: Reactive Adhesive, Solventborne Adhesive

Compatible Substrates & Surfaces: Aluminum, Aramid, Cotton, Elastomers & Rubbers, Fibers & Fabrics, Glass, Metal, Steel, Textiles

Application Method: Brush, Dip Coating, Roller, Spray

Chemical Family: Silicon-based Compounds

Technical Data Sheet
  • TypeDocument Name
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Knowde Enhanced TDS

Identification & Functionality

CAS No.
63394-02-5

Features & Benefits

Labeling Claims

Applications & Uses

Adhesive Application

Agitation – We recommend stirring Chemitac 6 before application to avoid settling.
Dilution – We recommend the dilution be always made with Methanol or Ethanol 99ºGL. Dilution of the product depends upon the type of application.

  • Dip – 100-300% v/v.
  • Brush/Roll – 100-300% v/v.
  • Spray – 100-300% v/v.

Application Layer – The film obtained by applying Chemitac 6 is colorless. The layer thickness should be 0.5-2 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 the application of the covercoat adhesive and/or 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.

Surface Preparations

Surface preparation comprises two steps:
1. 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.
2. 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 commonly 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.

Properties

Physical Form
Typical Properties
ValueUnitsTest Method / Conditions
Bonding Temperature Range150 - 200ºC
DiluentsMethanol / Ethanol 99ºGL
Non-volatile solids (2h at 70°C)max. 5.2 %
Specific Gravity (at 25°C)818g/cm3
Viscosity (# 4 at 25°C)10Ford Cup
Viscosity (Brookfield at 25°C #2 spindle at 30 rpm.)3cPs

Regulatory & Compliance

Certifications & Compliance

Storage & Handling

Shelf Life
1 year
Storage

Keep the container tightly closed and away from heat sources. Maximum temperature storage is 25ºC.