DJ-A3-MF881F-25 fireproof sealant
- Meet the requirements of building structural sealant standards.
- It has good adhesion to most substrates, including coated glass, colored glazed glass, anodized aluminum and stainless steel.
- No pollution and no pollution to the substrate Corrosion
- It has good stability in working environment of -60ºC~180ºC
product manual
Meet the requirements of building structure sealant standards
Good adhesion to most substrates, including coated glass, colored glazed glass, anodized aluminum and stainless steel, etc.
No pollution and no corrosion to the substrate to be adhered
It has good stability in the working environment of -60°C ~ 180C. Product advantages
Excellent flame retardancy
Excellent mechanical properties and weathering resistance
Application field
DJ-A3-MF881F fire-resistant sealant is mainly used for structural assembly of building curtain walls, and flame-retardant sealing of various types of fire-resistant doors and windows, curtain wall projects, and public places such as waterproof, moisture-proof and decoration.
product description
DJ-A3-MF881F is a two-component room temperature neutral curing silicone structural sealant with dual functions of fire retardant and structural bonding and assembly. Neutral dealcoholization type, curing at room temperature and releasing a small amount of alcoholic gas.
Related standards
DJ-A3-MF881F can meet the Chinese structural sealant standard GB16776, and the combustion performance meets the GB/T2408 vertical combustion performance and the FV-0 level requirement. Good flame retardancy, excellent mechanical properties and weathering resistance ensure a long service life of the sealant.
Instructions
DJ-A3-MF881F does not require primer to have good adhesion to most coated and non-coated glass, metal spacers, etc. In order to ensure the quality of the project, it is recommended to do compatibility and cohesive tests in advance before each project is used. Mixing ratio In order to obtain better physical properties, it is recommended that the base and curing agent be mixed in a completely closed mixing system. An automatic glue spreader can be used instead of hand or hand-held agitators, because it is easy to mix during the mixing process. Bring in air and affect the physical properties of the sealant after curing. In order to obtain the best sealant performance, the ratio of base rubber and curing agent should be mixed at a mass ratio of 12:1, or an equivalent volume ratio of 8.5:1. Under this mixing ratio, the construction period of the sealant should be 30min~50min, and the surface drying time should be within 2h.The mixing ratio is allowed to be adjusted in a small range, but the quality ratio is preferably 11:1~14:1 range between. It is recommended to stir the curing agent evenly before use. Because the curing agent is easy to interact with Moisture in the air reacts and cannot be exposed to the air for a long time.
Ready to work
Remove dirt on the surface of the substrate, such as: grease, dust, water, frost, old sealant, glass compound, protective coating, etc. Metal, glass and plastic surfaces should be cleaned by mechanical methods or solvents. The solvent should be wiped on the substrate with a clean, lint-free white cloth, and then wipe it with a clean, lint-free white cloth.
Primer
Use DJ-A3-MF881F-generally do not need to use primer. Compatibility before use
The test will determine whether to use the primer through the compatibility and adhesion test results.
Protection and construction
To ensure beauty and cleanliness, the area near the joints should be covered with protective tape during construction. The protective tape is not allowed to touch the glued surface, which is the area where the silicone sealant will adhere. The protective tape should be removed immediately after the gluing process is completed.
Equipment cleaning
After gluing is completed, the pipes of the gluing machine must be flushed with base glue or cleaned with solvent. If the cured sealant already exists inside the equipment, a suitable solvent should be used to clean it immediately to ensure that the surface of the pipe is clean after cleaning.
Repair
If the sealant is found to be damaged, use a clean knife to cut or scratch the surface of the cured sealant, and then re-gluing.
Precautions
Before construction, please read the product manual, safety data sheet, packaging label carefully to obtain information on safe use and health hazards.
Storage and validity period
The well-packaged product can be stored for 12 months in a cool, ventilated, and dry place, and used before the "expiry date" of the outer packaging of the product.
package
Base Gum (Part A): 200L iron drum inner diameter (567+2) mm
Curing agent (component B): 20L plastic barrel inner diameter (285+2) mm
Use restrictions
This product is not suitable for:
It may leak oil, plasticizer, solvent on the surface of building materials, or partially vulcanized rubber gasket or tape
Places subject to excessive friction or physical damage
A completely airtight place during curing
Frosty or wet surface
Direct contact with food or other food-grade surface applications
transport
DJ-A3-MF881F is non-dangerous goods, which can be transported by train, car, ship and plane.
Safety notice
This product manual does not include all the information on safe use instructions. To ensure safe construction, you should carefully read the "Silicone Structural Sealant Construction Guide" and the product manual before use, and contact your local sales company for these materials. Especially for the bonding of chrome-plated surfaces (such as chrome-plated glass), you must contact the company's technical department before use and perform safety testing before using it.
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