| Customization: | Available |
|---|---|
| Bonding Function: | Weather-resistant, Strong Bonding |
| Morphology: | Paste |
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| Model NO: 668 | ||||
| Test under GB/T 29755-2013 <Elastic sealants for insulating glass> | ||||
| Property | Standard Regulation |
Result | Testing Basis | |
| Appearance | Exquisite, uniform, no bubbles, no clumps, no gel, no crust,and no precipitate,the color of each component should be different | Qualified | GB/T 29755-2013(5.2) | |
| Density (g/cm³) | Part A | Specified value±0.1 | 1.37 | GB/T 13477.2-2018(2) |
| Part B | Specified value±0.1 | 1.07 | ||
| Slumpability(mm) | Vertical(mm) | ≤3 | 0 | GB/T 29755-2013(5.4) |
| Horizontal | No deformation | No deformation | ||
| Tack free time(h) | ≤2 | 2.0 | GB/T 13477.5-2002(5) | |
| Applicable time*(min) | ≥20 | 49 | GB/T 29755-2013(5.6) | |
| Hardness (Shore A) | 30-60 | 46 | GB/T 29755-2013(5.7) | |
| Elastic recovery (%) | ≥80 | 93 | GB/T 13477.17-2002(17) | |
| Tensile adhesive strength | Tensile bond strength(MPA) | ≥0.6 | 1.03 | GB/T 29755-2013(5.9) |
| Extreme elongation at maximum tensile strength(%) | ≥50 | 110 | ||
| Bonding destruction area(%) | ≤10 | 0 | ||
| Tensile properties at maintained extension | No destruction | No destruction | GB/T 13477.10-2002(10) | |
| Tensile adhesive strength after immersion in water and UV light | Tensile bond strength(MPA) | ≥0.45 | 0.79 | GB/T 29755-2013(5.11) |
| Extreme elongation at maximum tensile strength(%) | ≥40 | 159 | ||
| Bonding destruction area(%) | ≤30 | 8 | ||
| Tensile adhesive strength after heat aging | Tensile bond strength(MPA) | ≥0.60 | 1.16 | GB/T 29755-2013(5.12) |
| Extreme elongation at maximum tensile strength(%) | ≥40 | 123 | ||
| Bonding destruction area(%) | ≤30 | 0 | ||
| Weight loss(%) | ≤6.0 | 1.9 | GB/T 29755-2013(5.13) | |
| Water vapor transmission rate g/(m^2·d) | Report data | 11.4 | ||
| *According to GB/T 13477.3, the B method is used to measure, extrude the sealant with a hole diameter of 4 mm, the sample pretreatment temperature (23±2)ºC, and the time corresponding to the reading extrusion rate is 50mL/min, which is the applicable time | ||||
SMT668 is a two part silicone sealant suited for the secondary seal in structural insulating glass units
1.Two part neutral curing sealant odorless, non-corrosive
2.Outstanding resistance to UV and moisture
3.Good mechanical properties: high tear strength, elongation and tensile strength
4.Solvent free
5.Thixotropic, non-slump
6.Resistant to ozone and temperature extremes
1.Silicone Insulating Glass Sealant is intended for use as a secondary sealant in dual-sealed insulating
glass units ; primary seal
2.Can be used as a secondary insulating glass sealant for structurally attached IG units
CNAS Certificate
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