Dowsil 718 weatherproof silicone sealant with high-performance one-component silicone sealant for glass curtain wall
Product description
Dow corning 718 is a high-performance one-component silicone sealant for glass curtain wall with excellent weather resistance, flexibility and endurance reliability.
Features
Excellent weatherability, virtually unaffected by sunlight, rain, snow, ozone
Good visual transparent effect
Reliable durability - after curing sealant within 15 ℃ to 50 ℃ temperature keep elasticity will not harden, cracks and fracture.
To the original interface width in elongation/compression 25% without damage.
Specification
| Standard | Parameter | Unit | Value |
| Supplies—Temperature 25℃,50% Relative humidity |
| | Color | | Transparent |
| GB13477-6-2002 | Sag(vertical) | mm | 0.5 |
| ASTM C603 | Extrude ability | g/minute | 300 |
| CTM98B | Operate time | Minute | About 10 |
| GB 13477.5-2002 | Surface drying time | Minute | About 18 |
| | Deep curing | mm/day | 1-2 |
| Curing after 7 days—Temperature 25℃,50% Relative humidity |
| GB13477.2-2002 | Rate | | 1.02 |
| ASTM D2240 | Hardness shore A | Shore A | 20 |
| GB13477 | Sealing grade | Low modulus | 20 LM |
| ASTM D412 | Max. tensile strength | MPa | 1.5 |
| ASTM D412 | Elongation at break | % | 500 |
| ASTM C719 | Displacement ability | % | ±25 |
Application
Dow corning glass curtain wall assembled 718 sealant is mainly designed for glass curtain wall and glass of seam applications.
| Color | Translucent |
| Performance | Weather resistance |
| Main raw material | Neutral Silicone |
| Net capacity | 300ml |
| The disability | 25% |
| Packing | 300ml*24branches/box |
| Function area | glass curtain wall and glass of seam applications |
| Shelf life | 12monthes |
| Store temperature | Below 30℃ |
| Component | One Component |
product manual
1.Dow Corning 718-point glass curtain wall assembly sealant is a viscous paste with stable chemical properties, one component, and ready for use. Wide temperature adaptation range (-50 ° C to 150 ° C). After testing, it meets various performance indicators of GB / T 14683-2003 and JC / T 882-2001.
2. Storage method: When stored at 30 ° C or lower, the shelf life of Dow Corning 718-point glass assembly silicone sealant is 12 months after the date of manufacture. Please note the date of manufacture on the package
3.Surface cleaning: clear all grease, dust, water, surface dirt, old sealant, assembly accessories and protective coatings that are left in the interface and the recess of the assembly.
4. Restrictions on use: structural assembly applications, horizontal joints and other places prone to wear or physical damage, on frosty or wet surfaces, long-term immersion in water, surfaces that may leak oil, plasticizers or solvents on.
5. Cautions: Avoid excessive inhalation of volatile gases during curing, and maintain ventilation during construction;
6. Keep out of reach of children. If the eyes are in direct contact with the uncured adhesive, wash it with plenty of water in time and ask your doctor for help.
