TEROSON® MS 939 FR is a black or grey thixotropic adhesive paste recommended for industrial assembly applications for the automotive and rail industry. It offers high-speed humidity curing, achieving a 3 mm depth of cure in 24 hours and skin formation in 6 to 20 minutes.
TEROSON® MS 939 FR is a versatile, gun-grade sealing agent with wide substrate compatibility for bonding rail and automotive assemblies, where reduced inflammability and low combustibility are necessary, achieving flexible bonding with resistance to fire, UV, weathering, and more. It can be applied as a silane-modified polymer thixotropic paste at room temperature and cures in the presence of moisture. This curing process of TEROSON® MS 939 FR can be influenced by factors, such as humidity, joint depth, and temperature.
Appearance: Black, grey
Consistency: Thixotropic paste
Odor: Characteristic
Density, g/cm³: approx. 1.45
Sag resistance: no sagging
Skin formation time, min*: approx. 6 to 20
Cure rate, mm/24 hrs: approx. 3
Shore-A-hardness: approx. 55
Tensile strength, MPa: approx. 3.5
Elongation at break, %: approx. 180
Stress at 100 % elongation, MPa: approx. 2.1
Volume change (acc. to DIN 52451), %: <2
Application temperature, °C: 5 to 40
In service temperature range, °C: ─40 to 100
Short exposure (up to 1 h), °C: 120
Primary Chemistry: Silane modified polymer
Vehicle construction Rail industry Assembly applications
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