Excellent Adhesion
Molecular-level adhesion. No primer required. UV-resistant for lasting outdoor performance.
Window, Door & Siding
AU-1 provides molecular-level bonding for window, door, and siding installations. No primer required, 17 colors available,
and best-in-class durability for long-term performance.
and best-in-class durability for long-term performance.
Installation Advantages
Professional-Grade Performance
17 Stock Colors
Extensive color selection matches most siding and trim
Soap & Water Cleanup
Reliable product availability keeps projects moving
Lifetime Warranty
Lifetime performance you can count on
Product Solutions
Installation Products
AU-1 Commercial Construction Sealant
Premium Acrylic urethane sealant specifically engineered for window, door, and siding installations. Molecular-level bonding provides permanent adhesion to virtually all substrates.
Key Specifications
- 70% joint movement
- No primer required
- Soap & Water Cleanup
- UV resistant
- ASTM C-920 Class 35
- 17 stock colors
- Lifetime Warranty
- Paintable
AU-1 Hybrid
Hybrid polymer technology combines the adhesion of polyurethane with the versatility of silicone for demanding installations.
Key Specifications
- High movement capability
- Low VOC
- Excellent adhesion
- Easy cleanup
- Paintable
- Fast cure
- Weather resistant
- UV stable
Tower Residential
Premium acrylic sealant designed for residential window, door, and siding applications. Compatible with DuPont™ Tyvek® and all house wraps.
Key Specifications
- Tyvek compatible
- Paintable in 30 minutes
- 35-year warranty
- Easy tooling
- All-weather application
- Flexible and durable
- Low VOC
- Economical
Installation Applications
Complete Installation Solutions
Tower Sealants deliver weathertight protection across window, door, and siding installations, featuring advanced bonding that eliminates primers and ensures long-term durability.
Window Installations
Complete sealing solutions for new construction and replacement windows.
- Rough opening perimeter
- Window-to-trim interface
- Nail fin to sheathing
- Interior finish trim
- Exterior casing
- Sill transitions
Door Systems
Weathertight sealing for all door types and configurations.
- Door frame to opening
- Threshold transitions
- Exterior trim joints
- Sidelight connections
- Hardware penetrations
Siding Applications
Durable, flexible sealing for all siding materials and systems.
- Siding panel joints
- Corner trim connections
- J-channel interfaces
- Window and door trim
- Soffit and fascia
- Foundation transitions
Color Selection
17 Stock Colors
Match virtually any siding, trim, or window color with our extensive selection of stock colors.
Fast lead times of approximately 5 days for all stock colors.
White
Standard white for most applications
Off White
Soft, subtle tone with a clean, natural appearance
Almond
Light tan/beige
Bronze
Dark brown
Clay
Earthy tone with a warm, natural finish.
Black
Deep black
Limestone
Light gray
Stone
Raw, natural surface tone.
Stone White
Soft, refined stone-inspired white
Clear
Transparent finish
Pebble Gray
Soft natural stone tone
Woodtone
Warm timber tone
Redwood Tan
Warm redwood tone
Brown
Rich warm brown
Tan
Warm neutral tan
Aluminum Gray
Brushed metal grey
Sierra White
Soft alpine white
Note: Custom colors available upon request. Contact us for color matching services.
Get Started with Tower Installation Solutions
Request color samples, technical specifications, or find a distributor near you.