DJ-A3-MF889F-25 is a single-component, highly elastic, low modulus (LM) flame-retardant material used in various forms of buildings, especially high-rise buildings and buildings with complex structures. It can be easily extruded and used at most ambient temperatures, and reacts with moisture in the air to form a durable and weather-resistant silicone sealant. DJ-A3-MF889F-25 can meet the requirements of 100/50LM and has good flame retardant and sealing properties; within its displacement capacity, it has a strong ability to withstand high and low temperature alternating and repeated deformation, and can be used in conjunction with silicone fire retardant structural sealants that meet the construction industry standard JG/T 475 or the European standard ETAG 002, providing a 25-year quality guarantee.

Sealant for building doors and windows Slande
Features and Benefits
◇Excellent fire retardant performance
◇Neutral curing, no corrosion to the adhered surface, suitable for coated glass, float glass, wooden
materials, aluminum profiles, galvanized steel plates, masonry and other materials
◇The original seam width can be stretched/compressed by 20%
◇Excellent weather resistance and good temperature resistance, no adverse effects from
sunlight, rain, ice, snow, ozone or extreme temperatures
●It is possible to achieve good results on most building materials and components without the use of primer.
Adhesion
◇Ideal sealing material for stretches, connections, perimeter seals and other moving joints
◎Easy to use, can be extruded and applied at any time using a general glue gun
◎Excellent anti-sag performance
●No pollution to the environment
composition
◇Single-component, neutral, room temperature water vapor curing silicone sealant.
application
DJ-A3-MF889F is suitable for bonding and sealing of various fireproof doors and windows, flame-retardant sealing
of all layers of curtain wall projects, and flame-retardant sealing of waterproofing, moisture-proofing, and decoration
in public places.
Main Specifications
Test items
skills requirement
When not cured, test at temperature (23±2)℃ and relative humidity (50±5)%.
Droop,mm
Efficacy, ml/min
Surface drying time,h
≤3
Bonding time, d
Test results
Guideline

GB/T 13477.6

GB/T 13477.3

GB/T 13477.5

Construction temperature range,℃
Cured and tested for 28 days under the conditions of temperature (23±2)℃ and relative humidity (50±5)%
Displacement capacity,%
Temperature resistance range after curing,℃
Modulus at 100% elongation, MPa
Elongation at break,%
Tensile strength,MPa
Fire resistance,h
Flame retardant properties
Alkane plasticizer

GB/T 24267

GB/T 13177.8

GB/T 2408

Not allowed to be checked out
not detected
GB/T 31851
color
In
addition to black, gray and white, special colors can also be produced according to customer requirements. 사

ASTM C 920S type, NS type, grade 20, suitable for NT, G,
Class A applications

Adopt standards
DJ-A3-MF889F meets or exceeds the following standards and specifications:

Application method
◇Surface cleaning
Remove all grease, dust, water stains, knots remaining at seams and assembly parts

Frost, surface dirt, residual sealant, glazing accessories and protective coatings and other impurities and contaminants.
◎Glue injection
● Install backing materials, isolation pads, pad pole spacers and tapes as required. Masking tape should be used in areas where
joints are connected to ensure a clean and beautiful sealant line.
For non-porous material surfaces, there is usually no need to apply primer to achieve good adhesion. However, for some porous material surfaces,
it may be necessary to apply primer to ensure good adhesion. It is recommended to apply primer before starting the project. Knot test.
●Continuously squeeze DJ-A3-MF889F into and fill the joints (the sealant can be applied using a pneumatic glue gun and other glue injection equipment). When using
a pneumatic gun, the operating pressure should be adjusted to prevent bubbles from being generated during glue injection.
● When the sealant surface has not yet formed a skin, use appropriate force to press the sealant halfway onto the backing material and joint surface, and
smooth the sealant surface.
●Tear off the masking tape immediately after leveling is completed. Do not use liquids such as water, soapy water, or alcohol to help with leveling.
Operation precautions
●If it accidentally gets into your eyes, rinse immediately with plenty of water
●Do not come into contact with skin for a long time and avoid contact with children.
Do not contaminate food, drugs or cosmetics
● Please do an adhesion test before use and refer to the company's technical information and safety data sheet to learn about the safe use, hazards and other
information of the product. For any safety matters not involved in this product, please comply with the requirements of JGJ102
Storage and validity period
Well-packaged products can be stored in a cool, ventilated and dry place for 9 months and should be used before the "expiry date" on the outer packaging of the product.
Package
Plastic tube: 300ml each, 25 pieces per box
Soft packaging: 592ml each, 20 pieces per box
Usage restrictions
This product is not approved for use as a structural adhesive and has not been tested or represented as suitable for medical or pharmaceutical use.
This product is not suitable for:
Joints in the groundwater or areas subject to excessive friction
long term immersion in water
On building material surfaces that may seep oil, plasticizers, solvents, or partially vulcanized rubber gaskets or tapes
On frosty or damp surfaces
A place that is completely out of contact with air during curing (the sealant needs water vapor to cure)
Application of paint on the sealant surface (general paint cannot adhere to the silicone surface)
Direct contact with food or other food grade surface applications