SV-998 It is a kind of two-part room temperature vulcanized polysulphide sealant with high performance especially formulated for insulating glass. This sealant has excellent elasticity, heat gas penetration and adherent stability to various glasses.
Features
* Structural performance* Cures to form a durable, long-lasting, high-modulus, flexible, weather tight bond
* Excellent UV and weathering resistance
* Excellent unprimed adhesion to glass and metal substrates, such as galvanized steel and aluminum
* Superior long-term durability
* Consistently nonslump, permitting automated glazing 12 month shelf life from date of manufacture Noncorrosive byproducts Low
* shrinkage (< 5 percent)
* Unmatched service temperature range 1 | Brand Name | SIWAY |
2 | Product Name | SV998 Polysulphide Sealant For Insulating Glass |
3 | Main Material | Polysulphide |
4 | Type | Two Component Neutral Polysulphide Sealant |
5 | Color | Transparent, White, Black, or as required |
6 | Packaging | SV-998 Polysulphide sealant is available as:
Packing 1:Component A:300kgsteel drum Component B:30kgsteel drum Packing 2:Component A:30ka steel drumComponent B:3ka/plastic pail |
8 | Appearance | Smooth paste without bubble or particles |
9 | Application | Installation of general construction
and decorative materials |
10 | Certificate | ISO9001:2000, MSDS,EN1279,CE |
11 | Shelf life | 9 -12 Months(4°C-40°C) |
12 | OEM/OEM | Available |
Under the conditions of the 23+2 and the R.H.50+5% |
Item | Component A | Component B |
Viscosity(Pa's) | 100~300 | 30~150 |
Appearance | Fine, smooth and homogeneous | fine, smooth and grease-like |
Color | White | Black |
Density(g/em3) | 1.75±0.1 | 1.52±0.1 |
Mixed Component A and Component B at 10:1 by weight,under the conditions of 23±2ºC |
and the R.H. of 50±5% |
Item | | Standard | Result | Test method |
Resistance to flow,mm | Vertical | ≤3 | 0.8 | GB/T113477 |
level | No distortion | No distortion |
Application Time, 30min, s | ≤10 | 4.8 | |
A:B-10:1,Under the conditions of the 23+2ºCand the R.H.of 50+5% after 7days of |
curing: |
Item | | Standard | Result | Test method |
Durometer hardness | 4h | | 30 | GB/T1531 |
(Shore A) | 24h | | 40 | |
Tensile strength,MPa | | MPa | 0.8 | GB/T113477 |
Permeation rate of evaporation(g/m2.d) | ≤15 | 8 | GB/T11037 |
GB/T113477 | | 25HM | JC/T1 486 |
GB/T1Chinese national standard |
1.Two parts of SIWAY S-998 packaged respectively of composition A(basic gel) and a composition B(curing agent), are mixed together according to the ratio of A:B=10:1 before application. The curing rate may be modulated by changing the weight ratio of composition A to composition B over the range of 12:1 to 8:1 according to different environment conditions
2. The mixture of sealant can be classified into two methods one by hand-made and the other by special extrusion machine. It is noticed that SIWAY SV-998 sealant should be scratched and mixed by the spatula along the same direction repeatedly to prevent gas bubble trapped in sealant in the method of hand-made.The homogeneity of mixture can be measured bybutterfly-type method as listed in the following figure: Good Mixture Bad Mixture
3. The surfaces of insulating glasses must be dry and clean.
4.SIWAY SV-998 should fill the joints completely which need to be caulked during the course of making insulating glass.
5.Gun mouth should be assured to move along the same direction at uniform velocity to make the ioints full of sealant and prevent
the gas bubble production due to moving too fast or back and forth in the method of using special extrusion machine.
6. The sealant overflowing the joints should be pressed back at once by spatula to make the sealant contacting with the sides of the joints completely and smooth the surface of the joints along the same direction.
Shanghai Siway Building Materials Co., Litimed., our comapany is a professional silicone sealant
manufacturer. We have a varity of silicone sealants, main products are Structural silicone sealant,
Neutral silicone sealant, weatherproof silicone sealant, Stone silicone sealant and others. The products
own a good repution in home and abroad, especially in Europe, North America, the Middle East and
other regions.We are the large group of sealant production, rely on the raw material suppling base to
produce the professional sealants. More production lines and Quanlity stabel. The capacity of production is 10 million tons per year of silicone sealants.Other different sealants also very large quantity,can satisfy big projects request.
Complaint
