SuperTectum
Flex PU30

 
SuperTectum
Flex PU30
Two-component, fluid-grade polyurethane sealant
A two-component, fluid grade polyurethane sealant for horizontal applications, ideal for large construction bondings and joints.

Upon curing, it produces a highly effective sealant, which also provides significant waterproofing with excellent resistance to various climatic and temperature conditions.

In addition, the sealant has a very good resistance to chemicals and other severe exposures.
Compliance
The product complies with:

• ASTM C920
• DIN 18540
• SS-S-200D
• SS-S-200E, Type H (slow curing, manual mixing)
Application area

• Sealing of large expansion joints
• Sealing of joints in water tanks
• Sealing of joints in irrigation canals
Features and benefits
Excellent resistance to ageing, microorganisms, fungi and several chemicals
Can be painted over
Remains elastic even below -40° C
Resistant to both salt and fresh water
Good mechanical properties
Resistant to contact with petroleum products in accordance with the specification SS-S-200E
Application procedure
1
Recommended application temperature range varies between +5° C to +40° C.
Thoroughly clean bondings and rims of the joints, make sure that there are no residues of oil, grease, wax and silicone as well. The bottom must be dry, chemically neutral, even, strong, clean - free of dust, rust or flaking particles.
2
Set a backer rod of polyethylene or polystyrene of appropriate diameter into the joint to a depth equal to half the width of the joint. Before filling the sealant, the edges of the joint are treated with a suitable primer, depending on the condition of the substrate:
• For porous surfaces - SuperTectum PU Primer;
• For wet or damp surfaces - SuperTectum Aqua NG;
• For non-porous surfaces - SuperTectum Macro Primer.
3
Immediately before application, the components A and B are mixed thoroughly with a low speed mixer and (300 r/min), until the mixture is completely homogenized to avoid the formation of air bubbles. The final mixture is poured slowly into a joint.
Flow Rate
Kg per line meter of a joint
Width. \ Depth.
2cm
4cm
8cm
1cm
0,280
0,560
1,120
2cm
0,560
1,120
2,240
4cm
1,120
2,240
4,480
General information
Packaging
Component A - 4 kg
Component B - 8 kg
Shelf life
It can be stored for minimum 12 months in the original unopened buckets in dry places and at a temperature from 5° C to 25° C.
Safety information
Contains fugitive flammable solvents. Must be used in well-ventilated areas, do not smoke nearby, keep away from open flames. Indoors, use fans and active masks. The MSDS (Material Safety Data Sheet) is available on request
Technical specifications
Properties
Units
Method
Specification
Density, at 20° C
g/cm3
ISO 2811 / DIN 53217 / ASTM D1475
1.4
Hardness
Shore A
ISO R868 / DIN 53505 / ASTM D2240
±26
Service temperature
°C
-
-40 to +90
Application temperature
°C
-
+5 to +40
Drying time at 77° F (25° C) and relative humidity 55%
hours
-
5
Elongation at break
%
ASTM D412 / EN-ISO-527-3
>450
Modulus at 100% elongation
N/mm2
ASTM D412 / EN-ISO-527-3
0.4
Resilience
%
DIN 52458
>70
QUV Accelerated Weathering test (4 hours UV at 60° C (UVB - lamps) and 4 hours COND at 50° C)
-
ASTM G53
Passed
(after 1 000 hours).
Toxicity
-
-
estrictions as cured
Hydrolysis (8% KOH, 15 days at 50° C)
-
-
No elastomeric property change
Hydrolysis (H2O, 30-day cycle at 60-100° C)
-
-
No elastomeric property change
HCl (pH = 2, 10 days at normal temperature)
-
-
No elastomeric property change
Get TDS on this material
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