What are the types of refractory sealant?
Intumescent fireproof sealant: It has a characteristic of volume expansion when heated in the fire. Elastic fireproof sealant: Fire-resisting sealant with a certain to scalability (displacement capability) . Applications: Intumescent fireproof sealant is mainly used for sealing of single or small size bunches of cables through holes and filling of the gaps between the cables. Elastic fire resisting sealant is mainly used for fireproofing and sealing of construction joints (such as curtain wall gap).
Hello: I'm glad to help answer your questions! Measure fireproof material is high polymer plastic seal material which is used for seal. It has a dual performance of both sealing and fireproofing. It can be applied for fire protection construction of metal pipes, thermal insulated pipes and construction juncture. Fire-resisting sealant has an expansion rate of greater than 20% and it is resistant to nuclear radiation, LOCA, detergents, and it has radioactive decontamination performance. It has a durability of more than 40 years; It is free of halogen, sulfur and other toxic matters, watertight, anti-smoke, corrosion free, safe and environmental-friendly. It gives off no toxic smoke and is efficient in inflamming retardancy which is easy to construct. I hope my answer will be helpful to you.
Refractory sealant has low exothermicity and will form a hard corking content during burning, it includes: Liquid polysiloxane has at least two active groups selected from alkoxy, hydroxy and alkenyl; a cross-linking agent, a catalyst, a reinforcing filler and wollastonite. These cured silicone rubber sealant has low heat release and will form a hard coking content structure while buring. Refractory sealant composition can be used in sealing structure to prevent flames, air and other steams passing. 1. In a liquid organic polysiloxane polymeters, each R1 is independently selected from the alkyl, aryl, alkenyl and haloalky which has 1-18 carbon atoms, and each R2 is independently selected from the hydroxy, alkoxy, alkenyl, and X is an integer from about 10 to 1,500. 2. A crosslinking silicone compound having at least 3 silicon-bonded eactive groups. 3. A R2 pressed of silicon bonding capable of promoting component A. 4. Wollastonite and a selective reinforcing filler.
According to the environmental temperature of the region, it is divided into stpl-1 type, stpl-2 type, stpl-3 type. The three models are respectively applied to sealing repair of regular and irregular crack in asphalt / cement concrete roads, highways, airport runways, which are of different temperatures. Stpl-1 type: It is suitable for pavement temperature (0℃to 80 ℃) stpl-2 type: It is suitable for pavement temperature (-15℃to 60 ℃) stpl-3 type: It is suitable for pavement temperature (-30 ℃ to 40 ℃)
1. The characters of sealant for construction According to the characters, sealant for buildings are classified into caulk, sealants and construction sealant in China; They are named in accordance with the function and different basepolymeters. In the relevant standard for products,
