Bostik Duo-Sil Urethane Acrylic Sealant – 10.1 oz. Cartridge
Bostik Duo-Sil Urethane Acrylic Sealant – 10.1 oz. Cartridge
Bostik Duo-Sil Urethane Acrylic Sealant is a 10.1 oz. (300 ml) cartridge of a urethane-and-acrylic emulsion sealant and adhesive for professional commercial and residential construction use.
Key Features
- Special urethane and acrylic emulsion formulation — not a silicone product
- As a caulking compound, fills butt joints in vinyl, aluminum and fiber cement siding, windows, doors, brick molding, countertops and showers
- As an adhesive, bonds to wood, metal, gypsum board, vinyl board, cove base, molding and foam board without primer
- Will not degrade polystyrene foam bead board the way most solvent-based or plasticized sealants do
- Flexible and mildew-resistant; will not crack or fade
- Low VOC, non-hazardous and non-flammable
- Tooling is not recommended after application
Color: the color of this specific cartridge (SKU BOS 30856818) is not confirmed in any published source — Bostik offers Duo-Sil in 145+ colors, including clear. Confirm the exact color against the supplier item master before this listing is used for a color-matched job.
Who Is This For?
Professional installers and contractors who need a primerless sealant/adhesive for siding, window and door trim, brick molding, countertop and shower joints on commercial or residential jobs.
Frequently Asked Questions
Is Duo-Sil a silicone sealant?
No. Duo-Sil is a urethane and acrylic emulsion sealant and adhesive; it contains no silicone.
Do I need to prime the surface first?
No. Duo-Sil bonds to most common building substrates — wood, metal, gypsum board, vinyl board, cove base, molding and foam board — without a primer.
What color is this cartridge?
Not confirmed — the color for this SKU is not tied to a published color name or number and should be verified before ordering for a color-matched job.
What size cartridge is this?
10.1 fl. oz. (300 ml), Bostik's own published size for this cartridge.