TEROSON MS 939 can be used for the following applications: elastic bonding of metals and plastics, e.g. side panelling and bonding of the roof skin in the vehicle and caravan manufacture; elastic, interior and/or exterior seam and joint sealing in the following areas. Vehicle body, caravan, railway carriage, container and general metal construction; electrical, plastics, air- conditioning and ventilation industries.
TEROSON MS 939 is a gun-grade, one-component adhesive/sealant based on silane modified polymers, which cures by reaction with moisture to an elastic product.
The skin formation and curing times are dependent on humidity and temperature, and the curing time also depends on joint depth. By increasing the temperature and moisture these times can be reduced; low temperature as well as low moisture retard the process.
TEROSON MS 939 is particularly sag-resistant leading to a high position tack after matching of the parts to be bonded.
TEROSON MS 939 is free of solvents, isocyanates, silicones and PVC. It demonstrates good adhesion to many substrates and is compatible with suitable paint systems. The sealant also demonstrates good UV resistance and can therefore be used for interior and exterior applications.
TEROSON MS 939 demonstrates the strength necessary for elastic bonding. TEROSON MS 939 allows accelerated curing as two-component material.
|Shore A hardness (DIN EN ISO 868)||55
|Depth of cure after 24 hr||3
|Skin formation time||5
|Tensile strength (DIN 53504)||3
|Elongation at break (DIN 53504)||250
|Service temperature range||-40 +100