PG-321CL Bicomponent polysulfide building sealant
Two-component silicone sealant is a new type of waterproof and
sealing material with excellent performance superior to other
sealants. The product is two-component paste and two components are
obviously different in color which is easy to mix evenly.
Two components A and B used should be according to the mass
ratio1:1, mixing evenly without color difference (the curing speed
can be regulated by adjusting the ratio of A component and B
component, the more B component, he faster the curing process
1. Good adhesive performance, a wide scope of temperature, neutral
cure, non-toxicity, non-corrosion. After curing, the sealant has
good weatherproof features and excellent performances including
resistance to UV, high or low temperature and corrosion and
humidity. Neutral dealcoholization silicone sealant becomes cured
at the room temperature . Curing agent can be used to help the
sealant cure when there is a huge variations in temperature.
2. The typical physical properties is its formation of excellent
structure strength at the temperature between -30 ℃ to 120 ℃.
Physicochemical property parameters of silicone sealant for
|1||Density(g/cm3)||Predetermined value ±0.1|
|3||Surface drying time, h||≤3°|
|5||Elastic recovery rate/%||≥80|
|6||Tensile modulus, Mpa||23℃|
>0.4 or >0.6
≤0.4 and ≤0.6
|7||Tensile cohesiveness||No damage|
|8||Cohesiveness after UV radiation||No damage|
|9||Cohesiveness after cold drawing-hot pressing||No damage|
|10||Tensile cohesiveness after soaking||No damage|
|11||Mass loss rate/%||≤10|
Component is allowed to use other parameter values agrees by both
supply and demand sides.
Component is suitable for product class G.
1. Two-component silicone sealant is a kind of product which is not
inflammable, explosive, toxic.
2. The best storage conditions should be away from light,
ventilated and moisture proof at the temperature.25±3℃.
Construction guidance for product
Base layer treatment: the surface of adherend should be straightly
treated (by using cutter, grinder, or wire brush, etc.)to make the
solid structure layer of coating glue surface obviously shown.
The surface of joints must be ensured to be completely clean, the
dust and cement slurry on the surface must be brushed and cleaned,
the rust layer and protective lacquer on the metal surface should
also be removed.