DUO-SIL Ultra® is specifically designed to meet the needs of the professional contractor. It is a superior, all-purpose adhesive and sealant combining enhanced ease of application with long-term performance.
Duo-Sil Ultra® can be applied form 0° to 140°F, on wet, damp, or dry surfaces and is ready to paint in one hour after application. Duo-Sil Ultra® is formulated to withstand the harshest weather conditions from extreme cold to driving rain to hot and humid conditions. It will never shrink, crack, or peel and has a low-VOC formulation containing no isocyanates or solvents.
Currently available in White only.
- Detachable nozzle for repeated use and increased efficiency
- Can be applied in extreme temperature ranges 0°F to 140°F
- Low-VOC formula
- Can be applied to dry, damp or wet surfaces
- No odor
- Paintable in 1 hour
- Does not shrink or crack or peel
The versatility, convenience, and high-performance formula make DUO-SIL Ultra® paintable caulk ideal for various interior and exterior applications.
Duo-Sil Ultra® can be used for both interior and exterior applications. It is ideal for use with fiber cement siding, vinyl siding, windows, doors, aluminum, wood, mortar, brick and more.
DUO-SIL Ultra® Advanced Hybrid Polymer meets or exceeds the requirements of ASTM C920, Class 50 and AAMA 803.3-10
Common Interior and Exterior Uses
- Vinyl, cement, and aluminum
- Kitchens and baths
- Most other areas where a colored sealant is needed
- Not recommended for application on Teflon, polypropylene or polyethylene surfaces.
- Not for use on underwater application or for expansion joints. Some alkyd paints may not be compatible with Duo-Sil Ultra®
DUO-SIL Ultra® FAQs
Why choose DUO-SIL Ultra over other adhesives and sealants?
DUO-SIL Ultra® is a superior, all-purpose adhesive and sealant combining enhanced ease of application with long-term performance. Duo-Sil Ultra® can be applied form 0° to 140°F, on wet, damp, or dry surfaces and is ready to paint in one hour after application. Duo-Sil Ultra® is formulated to withstand the harshest weather conditions from extreme cold to driving rain to hot and humid conditions. It will never shrink, crack, or peel and has a low VOC formulation containing no isocyanates or solvents.
Is Duo-Sil Ultra® suitable for interior and exterior uses?
Yes, in fact its low voc, low odor formulation makes it ideal for all applications, inside or outside.
Is Duo-Sil Ultra® paintable?
Yes, Duo-Sil Ultra® is paintable with almost all common acrylic-based paints and some alkyd-based paints. Test alkyd-based paints for suitability. Duo-Sil Ultra® can be painted in 1-2 hours under normal atmospheric conditions.
What surfaces does Duo-Sil Ultra® adhere to?
Duo-Sil Ultra® is a high performance product. Unlike many traditional sealants and caulks, it adheres to almost all common household surfaces. Porous or non-porous surfaces all adhere to Duo-Sil Ultra®.
Can Duo-Sil Ultra® be applied to damp or wet surfaces?
Yes, Duo-Sil Ultra® can be applied to damp or wet surfaces without affecting its performance.
Is Duo-Sil Ultra® waterproof?
Yes, Duo-Sil Ultra® formulation contains no water and is waterproof. In fact, Duo-Sil Ultra® can be applied where there is a possibility of occasional standing water.
What is the typical cure time for Duo-Sil Ultra®?
Duo-Sil Ultra® has a typical cure time of 24 to 48 hours.
What is the typical shelf life for Duo-Sil Ultra®?
Unopened shelf life of Duo-Sil Ultra® is 12 months stored at room temperature. Opened but resealed, the high performance sealants and caulks last approximately one week.
Does Sealants Direct offer a warranty on DUO-SIL Ultra®?
Sealants Direct unconditionally warranties the product for product replacement only. Please see our warranty statement for more information.