MF840Introduction of MF840 two-component polysulfide insulating glass special sealant series
MF-840(MF-840),,,,,,.
MF-840 two-component polysulfide insulating glass special sealant series (hereinafter referred to as MF-840 series) is a solvent-free, two-component, room temperature curing elastic sealant, suitable for glass, aluminum alloy, galvanized steel, and other materials Has excellent bonding
MF840 series sealant is composed of two components A and B. The A component (base paste) is a white uniform and delicate paste, and the B component (vulcanized paste) is a black uniform and delicate paste. Use ratio, A component: B component = (mass ratio) 100: (6-12), the best use ratio is 100:10.
MF840 series sealant is mainly used to make insulating glass.
Insulating glass: two or more pieces of glass are effectively supported and evenly separated and bonded and sealed around the periphery, so that a dry gas space is formed between the glass layers.
MF840 series sealant can be used with butyl sealant: butyl is the first seal and polysulfide is the second seal (outer seal); it can also be used to seal single-channel insulating glass.
The role of MF840 series sealant in insulating glass unit:
Structural support for insulating glass
Seal the hollow cavity to prevent outside water vapor from entering
Types, packaging and implementation standards of MF840 series products
MF840-Two-component polysulfide insulating glass special sealant
MF840K-two-component polysulfide insulating glass special sealant
MF840H-Alpine-resistant polysulfide insulating glass sealant
MF840L-Two-component polysulfide insulating glass special sealant
MF840F-two-component polysulfide insulating glass fire-retardant sealant
MF840T-Two-component polysulfide insulating glass special sealant
MF840 series packaging specifications and implementation standards
Product Packaging Specification Executive Standard
MF840 big barrel: A 300 Kg/barrel +B 30 Kg/barrel
Middle barrel: A 30 Kg/barrel +B 3.6 Kg/barrel
Small barrel: A 4 Kg/barrel +B 0.48 Kg/barrel GB/T 29755-2013
MF840 series sealant construction matters needing attention
. The construction temperature should be above 5ºC, otherwise it will affect its curing speed and bonding performance;
. Adhesion test should be done before construction and refer to the company's technical data and safety data sheet;
. Can not be mixed with other sealants, otherwise the bonding performance will be affected;
. The surface of the adhered material must be clean, dry and free of dirt.
. The construction ratio must be within the range recommended by the company.
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