Do You Know All The Secrets of Fireproof Sealant?

Sealants are very useful in life,and the performance they contain is also very comprehensive,common sealants are waterproof sealants,repair sealants,concrete sealants,etc,but you know what? There is also one of the most important sealants-fireproof sealants.

1. What is flame retardant rating?  

Flame retardant rating, that is, the material has or material after treatment has a significant delay in the nature of flame spread, and according to the classification of the rating system.The flame retardant grade of plastics increases step by step from HB, V-2, V-1 to V-0.

2. The role of sealant in "fire"

In the decoration process, after the construction of fireproof materials, fireproof sealant is needed to treat the smaller gaps, so in the construction process of fireproof materials, fireproof sealant is an essential substance. Different forms of sealant, the sealing mechanism is not the same, the biggest characteristic of fire sealant is fire. So what is the tightness of the fireproof sealant?

In fact, the fireproof sealant is based on water-based emulsion, and the sealing application scope is the door frame joint with strict requirements for smoke prevention. Different materials of fire retardant sealant construction methods are not the same, in order to obtain the required fire retardant effect, the thickness of the coating standard is to determine the sealant has contact with the surface of the tube substrate, in order to obtain the greatest adhesion; Wipe the fireproof sealant, in order to get better results, need to wipe the surface immediately, for excessive cement, before its hardening, the tool can be removed with water; Elastic fireproof sealant, clean the opening, prepare to apply FS-I joint surface, should remove scattered debris, dust, oil stains, frost, wax, etc., keep dry.

3. Why can fireproof sealant be fireproof? 

The production material of fireproof sealant cannot burn, so when it encounters a fire, it will not become a medium for the spread of fire, which can block the spread of fire to a certain extent and create time for people to escape. To take a very simple example, if you encounter a fire in the forest, it is quite dangerous, there are flammable trees and jungles everywhere, but we can clean up the combustible material in front, there is no combustible medium, which alleviates the fire spread trend to a certain extent, providing conditions for escape. Fireproof sealant is equivalent to a non-combustible medium, in addition to fire resistance, fireproof sealant can also heat insulation, its thermal conductivity is relatively poor, so when it encounters fire and high temperature, it will not lead the heat to the human body, can reduce the harm caused by the fire. When the temperature reaches a certain extent, some objects will spontaneously ignite, especially wood, and the fireproof sealant cannot conduct heat, which can reduce the heat transfer and reduce the spread of the fire.

4. The difference between elastic fireproof sealant and expansive fireproof sealant

Elastic fire retardant sealant is a low modulus, single component, neutral silicone fire retardant sealant, which is characterized by good flexibility, adhesion, the formation of a dense network structure after fire combustion, can effectively prevent the flame and heat transfer, widely used in small displacement of floor joints, wall caulking, mechanical pipes, ventilation pipes, insulation pipes and other hollow surface sealing. It can also be used for bonding of fire-resistant coating board to seal gaps.

Expansion type fire retardant sealant is a flame retardant, expansion type fire retardant sealant, which is characterized by good flame retardant, fire volume expansion, can effectively prevent the transmission of flame and heat, used for shafts, cabinets, cable through the wall, metal pipes and other fire blocking parts of the cable around.

Although the fire sealant is small, but at the critical moment is "lifesaving treasure", many small partners who despise the fire sealant must pay attention to it, in order to safety, the use of fire sealant in some wall gaps in the decoration of sealing treatment, can greatly improve the safety of the fire protection system.