Bostik 70-03A FR adhesive/sealant is the first SMP based technology that is tested to the flame, smoke and toxicity requirements in accordance to the NFPA 130 standard. Bostik 70-03A FR is specially developed for mass transit industry to comply with the interior and exterior sealing requirements of vehicles. This product demonstrates the mechanical properties necessary for elastic bonding, suitable for elastic constructions in industrial applications. SMP based Bostik products are solvent, isocyanate and silicone free and have an excellent UV, weather and temperature resistance. These products exhibit a very good adhesion performance on a wide variety of substrates (limited or no pre-treatment necessary).
FEATURES
Compliant with NFPA 130 standard for flame, smoke and toxicity
Non-Halogenated
Solvent, isocyanate and PVC-free
Very good UV-resistance and aging properties
In general, good adhesion on several substrates without the use of a primer
Permanent elastic within temperatures from
Neutral, odorless and fast curing
APPLICATIONS
Interior and exterior sealing in train constructions that require fire retardancy
Elastic bonding in mass transit constructions (e.g. train, bus & coach)
Interior sealing in aerospace applications
Sealing welded seams
Typical Properties
TYPICAL PHYSICAL PROPERTIES
Description
Results
Basic Material
Silyl Modified Polymer
Curing Method
Moisture
Specific Gravity
Approx. 1.5 g/ml
Skin Forming Time
Approx. 5 min. (20°C/50% R.H.)
Open Time
< 3 min. (20°C/50% R.H.)
Curing Speed After 24 hrs.
Approx. 3 mm (20°C/50% R.H.)
Shore A Hardness
Approx 65 (DIN 53505)
Volume Change
< 3 % (DIN 52451)
Tensile Stress (100%)
Approx. 2.5 MPa (DIN 53504/ISO 37)
Tensile Stress at Break
Approx. 3.2 MPa (DIN 53504/ISO 37)
Elongation at Break
Approx. 160% (DIN 53504/ISO 37)
E-Modulus (10%)
Approx. 6 MPa (DIN 53504/ISO 37)
Shear Stress
Approx. 1.8 MPa (DIN 53283/ASTM D1002)
(Alu-Alu; adh. thickness 2 mm, test speed 50 mm/min.)
