LaSeal 977 Clear MS Crystal Clear MS Polymer Sealant
Main purposes
1.For sealing and bonding for glass, windows, doors and etc;
2.Interior and outdoor using
Characteristics
1.Outstanding clear color.
2. Excellent mechanical property: 20 class high modulus
3.Excellent adhesion to most decoration materials.
4.Good anti-aging and weatherproof ability.
5.Environment friendly, ultra low VOC, odor free.
6.Can be painted over with most surface coatings (compatibility tests recommended)
![](https://ecdn6.globalso.com/upload/p/21/image_other/2023-11/6543518f9d66418090.jpg)
![](https://ecdn6.globalso.com/upload/p/21/image_other/2023-11/6543519b1a71f96894.jpg)
Application
1.It has a good adhesive strength without primer on most common materials such as aluminum, zinc, galvanized steel,stainless steel, copper, natural stone, concrete, brick, etc.
2.For crystal clear elastic bonding in construction and building applications. Invisible bonding and sealing of glass and other transparent materials in indoor applications.
Technical Data Sheet(TDS)
Technology data:The following data are only for reference purpose, not intended for use in preparing specification
LaSeal 977 Clear MS Crystal Clear MS Polymer Sealant
Standard:
Meets or exceeds the requirements of the following specifications:
The requirements of VOC content specifications in LEED credit EQc4.1
“Low-emitting products” of SCAQMD rule 1168.
The French VOC requirements for class A+
CE marked for EN 15651 for façade applications.
Item | Data |
Chemical Base | Silane Modified Polymer |
Curing System | Moisture |
Density | 1.04 gr/ml |
Appearance/Color | Paste, Clear |
Tack free time | 5-10 min (23°C and %50 R.H.) |
Curing rate | >3.0mm/ 24 hr (23°Cand %50 R.H.) |
Hardness Shore A | About 50 - 60 |
Elongation at break | ≧60% |
Tensile strength | >3.0Mpa |
100% Tensile Modulus | >2.2Mpa |
UV resistant | No change. |
Your company | ≤ 1.5% |
Service Temperature | -50°C to +70°C |
Application Temperature | +5°C to +35°C |
Shelf life | 12 months |
Curing condition of the sample :23℃×50%RH×14 days |
Limitations
1.It must not be used in totally confined spaces where sealant cannot cure due to lack of atmospheric moisture.
2.Cannot be used on natural stone. Because the adhesion surface will discolor under influence of the sealant (looks wet) and also this is visible through the sealant due to its clear look.
3.Do not use in applications where continuous water immersion is possible.
4.Prolonged exposure to direct sunlight can cause discoloring, Joint Width 5mm 10mm Joint Depth 5mm 5mm Efficiency /310 ml 12 meters 6 meters
Surface Preparation
● Following cleaning procedure and materials are recommended:
● Glass Degrease with alcohol or MEK
● Aluminium, light alloys and stainless steel Degrease with alcohol or MEK
● Other Metals Lightly abrade then degrease as above
● Wood Lightly abrade surface then remove dust
● Plastics Degrease using an agent recommended by plastics manufacturer
● Concrete and other alkaline Surfaces Brush and remove dust
Instruction
1. Before the application, the tip of the cartridges is cut and a plastic cap is fixed.
2.The tip of the cap is cut according to the width of the surface and fixed to the cartridge gun.
3.The sausage package is cut from one edge and fixed to a suitable gun. Then the cap nut is screwed to the cylinder of the gun.
4.The joints should be filled at one time and without gaps during the application.
5.The surface of LaSeal Universal applied in the joints should be smooth ended with a dampened spatula, glazing tool, joint iron or by hand immediately.
6. If used, the adhesive tape should be removed afterwards.
7.The opened packages should be consumed as quickly as possible.
8.The contaminated areas and used tools should be cleaned with white spirit or alcohol. It is cleaned only mechanically after cured.
9.Joint width/depth ratio should be 2:1.
Storage and shelf life
1.They should be protected from water, frost and adverse air conditions.
2.They should be kept dry and cool on wooden pallets at between +5 degree C and +25 degree C in moisture free conditions.
3.The opened products should be consumed immediately.
4.Shelf life is maximum 12 months conditional to complying with the aforementioned storage conditions.
Technical Data Sheet(TDS)
Technology data:The following data are only for reference purpose, not intended for use in preparing specification
LaSeal 731 Middle Quality Acetoxy Silicone Sealant
Item | Data |
Type | Acetoxy |
Density (g/cm3) | 0.98 |
Capacity movement | ±30% |
skinning time | 5-15 minutes |
Drying time(2mm/h) | 8-10 |
Drying(4mm/h) | 18-22 |
Max. Tensile strength | 1.3 |
Hardness shore A | 21 Judges 2 |
Elongation at Break(%) | =500 |
Modulus Mpa(100%) | 0.60 |
Application temperature | -20 C to +40 C |
Temperature resistance | -50 C to +100 C |
Adhesive | OK |
weatherproof | OK |
Cold-hot adhesive | OK |
under water adhesive | OK |
Elastical Recovery (%) | 96 |
Mass-loss Rate (%) | 35 |
Limitations:The product is not applicable to structure assembly or project whose base material has a surface temperature above 40 ℃.