70-05A is a Silyl Modified Polymer (SMP) based adhesive used for elastic bonding in bus, caravan, train and truck construction applications. With a higher green strength and tensile strength than similar products, 70-05A is suitable for making elastic constructive joints.
FEATURES
Solvent, isocyanate, and pvc-free
Very good UV-resistance and ageing properties
In general, good adhesion on several substrates without the use of a primer
Permanent elastic within temperatures from -40°F to 248°F (–40°C to +120°C)
Neutral, odorless and fast curing
Paint compatible with most industrial paint or lacquer systems, both alkyd resin and dispersion based (due to the large scale of different types of industrial paints a paint compatibility test is recommended)
Paintable after skin forming (wet-on-wet); this will not influence the cure rate.
APPLICATIONS
Elastic bondings and sealings: bus, caravan, train and truck construction
Bonding of roofs on busses, trains, trucks
Bonding of corner profiles of aluminium or polyester on trailers
Bonding of polyester parts on metal frames
Bonding of floor systems
TYPICAL PHYSICAL PROPERTIES
Description
Results
Basic Material
Silyl Modified Polymer
Curing Method
Moisture
Specific Gravity
Approx. 1.5 g/ml
Skin Forming Time
(70°F/20°C @ 50% R.H.)
Approx. 10 min.
Open Time
(70°F/20°C @ 50% R.H.)
<15 min.
Curing Speed After 24 hrs.
(70°F/20°C @ 50% R.H.)
0.125-in (3mm)
Shore A Hardness
(DIN 53505)
Approx. 60
Volume Change
(DIN 52451)
<3%
Green Strength
(maximim load which can be applied per m2 uncured adhesive without sagging)
500 Pa (Physical Rheometer MC100)
Tensile Stress (100%)
(DIN 53504/ISO 37)
390 psi (2.7 MPa)
Tensile Stress at Break
(DIN 53504/ISO 37)
500 psi (3.5 MPa)
Elongation at Break
(DIN 53504/ISO 37)
200%
TYPICAL PHYSICAL PROPERTIES (CONT)
Description
Results
Shear Stress
Aluminum-to-Aluminum Adhesive Thickness 2mm Test Speed 50 mm/min (DIN 53283/ASTM D1002)
