High-Performance Silicone Weatherproofing Sealant
PERFORMANCE WHERE IT COUNTS
Engineered to Outlast. Designed to Protect.
SILANDE MF889 is a premium one-part silicone sealant engineered for North America’s toughest climates. Trusted for its superior weather resistance, clean application, and long-lasting flexibility, it delivers reliable performance in demanding environments across the continent.
BUILT FOR NORTH AMERICAN CONDITIONS
Reliable Seal in Harsh Environments
Performs under high humidity, freezing temperatures, scorching sun, and UV exposure without degradation.
Fast, reliable delivery across North America
SILANDE MF889
Aluminum panels
Glass joints
Window perimeters
Exterior façades
Precast structures
Bonds Across Varied Materials
Adheres securely to glass, stone, aluminum, masonry, and coated or painted surfaces.
Flexible Under Pressure
Absorbs joint movement and building shifts without cracking or peeling.
Neutral-Cure Safety
Low-odour and non-corrosive, ideal for sensitive surfaces like painted or coated glass.
Zero Hazard Classification
Shipped and handled as a non-dangerous product with clear first aid guidelines.
Whether it’s glazing or gap sealing, MF889 delivers peace of mind on every build:
Flexible enough for dynamic joints in concrete, precast, and façade systems.
Expansion & Movement Joints
Curtain Wall Assemblies
Weather-seals aluminum and glass curtain walls for energy-efficient protection.
Exterior Panel & Frame Systems
Cladding, metal panels, and perimeter frames stay sealed and secure.
Glass Installations
Reliable for glass-to-metal and glass-to-glass assemblies in commercial structures.
© 2025 SILANDE Canada Sealant Inc. All rights reserved.
7250 Keele St, Unit 346, Vaughan, Ontario
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PRODUCT PROFILE & TECHNICALS
Formulation
One-part, neutral-cure silicone
~10–20 minutes
(temperature dependent)
Working Time
Fully cures in 24–48 hours
Curing Time
Custom colour availability on request
Colour
12 months in original packaging
Shelf Life
≤ 30°C in a dry, well-ventilated space
Storage
GB/T 14683, GB/T 22083, ASTM C920
Standards Met
ISO 9001 • ISO 14001 • ISO 45001
Certifications
Non-dangerous goods
Transportation Classification
CONTRACTORS & DEALERS, WE’VE GOT YOU COVERED
Bulk orders? National distribution? We make it easy.
Volume pricing & B2B account support
Expert guidance on application and substrate matching
Located conveniently in Vaughan, Ontario
READY TO SEAL WITH CONFIDENCE?
SILANDE MF889 delivers performance you can count on, from skyscrapers to storefronts.
SILANDE Canada Sealant Inc. supplies SILANDE MF889, a premium silicone sealant designed to meet the rigorous demands of construction and maintenance professionals across North America. With extensive industry experience, we are committed to providing reliable access to a high-quality product that supports contractors, builders, and maintenance teams in their projects.
SILANDE MF889 is ideally suited for a wide range of applications, including:
WHY PROFESSIONALS ACROSS NORTH AMERICA CHOOSE SILANDE
At SILANDE Canada Sealant Inc., we understand what Canadian builders face. Freezing winters, high humidity, rapid temperature swings, and strict performance standards are everyday challenges. That’s why MF889 Silicone Weatherproofing Sealant is formulated for Canadian climates and trusted in everything from glass curtain walls to barn roofs.
High-Performance Silicone Weatherproofing Sealant
SILANDE Canada Sealant Inc. supplies SILANDE MF889, a premium silicone sealant designed to meet the rigorous demands of construction and maintenance professionals across North America. With extensive industry experience, we are committed to providing reliable access to a high-quality product that supports contractors, builders, and maintenance teams in their projects.
SILANDE MF889 is ideally suited for a wide range of applications, including:
WHAT OUR CLIENTS ARE SAYING
MF889 has been a reliable choice for every exterior panel job we handle. Winters here in Michigan can be brutal on materials but this sealant holds up really well with no cracking or peeling. Just solid dependable performance.
Amandeep Gill, construction contractor
Michigan
My clients really like the smooth finish and low odour. I mostly use it for curtain walls and storefronts. It applies easily and cures just right every time. Makes my job easier.
Laila Haddad, glazing specialist
New York
We use MF889 to seal greenhouses and barns and it is tough. It stands up to humidity and freezing temps without peeling or breaking down. That is important for us.
Benoît Tremblay, agricultural lead
Quebec
For commercial glass projects this sealant sticks well and stays flexible. It leaves a clean professional finish that lasts. I have tried a few products and this one is definitely reliable.
Nicole Chan, architectural designer
British Columbia
I have taken on bigger maintenance jobs with confidence since switching to MF889. The product works exactly as promised and the support team was quick to answer all my questions. Delivery was fast too which helped keep my projects on schedule.
Oluwaseun Adebayo, maintenance contractor
Texas
It is safe to use around painted surfaces and easy to apply. Our crew prefers it because it just works no complaints no fuss.
Jorge Mendez, masonry worker
Ontario
WHO WE ARE
BUILT FOR
NORTH AMERICAN
CONDITIONS