TEROSON^® MS 939 FR

How to use

1. Preparation - Pre-treatment

1. The substrates must be clean, dry, and free of any oil,grease or mould-release agents used in the manufacturing process. Depending on the surface it may be necessary to roughen the surface or to use a primer/adhesion promoter to optimise adhesion. Due to the different compositions of paints, especially powder paints and the large number of different substrates, application trials before use are necessary. For cleaning, TEROSON^® VR 10 or TEROSON^® SB 450 from the Henkel portfolio are suitable. TEROSON^® SB 450 is especially recommended when bonding plastics and powder coated parts. Care should be taken when bonding plastics sensitive to stress-cracking such as PMMA (e.g. Plexiglas^®) and PC (e.g. Makrolon^® or Lexan^®). Application trials before use are necessary. There is no adhesion to polyethylene, polypropylene and PTFE. Substrates not mentioned above should be subject to trials.


2. Application

2. Application from cartridges is made with the TEROSON^® Hand or Air Pressure Pistols, and from foil cartridges with the corresponding FK-Hand or FK-Air Pressure Pistols. In the case of compressed air application, a pressure of 2 to 5 bar is required. Low material temperatures of the sealant will lead to an increase of viscosity, resulting in a lower extrusion rate. This can be avoided by bringing the sealant up to room temperature prior to application. TEROSON^® MS 939FR can also be applied from hobbocks or drums with high pressure pumps with follower plates. See separate application directions of TEROSON^® MS products in hobbocks and drums


3. Cleaning

3. For cleaning of application equipment contaminated with uncured TEROSON^® MS 939FR we recommend the use of cleaners + diluents TEROSON^® VR 30 or TEROSON^® VR


4. Preparation - Pre-treatment

4. Depending on the surface it may be necessary to roughen the surface or to use a primer/adhesion promoter e.g. TEROSON^® SB 450 to provide optimum adhesion.