XtremeSealant Window and Door - 24 tubes/box - 10.1 oz each tube

Tamlyn XtremeSealant — Fast-Curing Adhesive & Sealant for Multi-Substrate Applications

Tamlyn XtremeSealant (XS) is a fast-curing, paintable adhesive and sealant engineered for professional building envelope applications. Formulated to deliver superior adhesion and long-term flexibility across a wide variety of substrates, it is suited for use in exterior perimeter sealing, flashing details, window and door rough openings, and other critical moisture management transitions. XtremeSealant meets ASTM C920, Type S, Grade NS, Class 25 and complies with AAMA 808.3 Specification for Exterior Perimeter Sealing Compound, making it a verified choice for commercial and residential construction projects where performance standards are required.

Unlike conventional sealants, XtremeSealant is solvent-free and non-isocyanate, which reduces VOC exposure concerns on the job site and broadens its compatibility with sensitive substrates. Its fast cure rate allows trades to move through phases quickly without extended wait times, and the cured product can be painted with most industrial and consumer paints — eliminating the need for a dedicated paintable sealant on finish-visible applications.

Key Features & Benefits

Fast Cure Rate

XtremeSealant is engineered to cure quickly relative to conventional sealants, allowing subsequent trades or finish work to proceed without extended delays. For contractors working on tight schedules, reduced cure windows translate directly to fewer days on site and lower labor costs.

Superior Multi-Substrate Adhesion

The formulation bonds to PVC, aluminum, glass, stainless steel, galvanized steel, wood, FRP, marble, stone, and laminate substrates without requiring a primer on most surfaces. This versatility reduces the number of specialty products a crew needs to stock and manage across varied substrate conditions.

Solvent-Free, Non-Isocyanate Formula

Free of solvents and isocyanates, XtremeSealant is safer to handle in enclosed or partially enclosed spaces and is less likely to cause substrate compatibility issues on sensitive materials. Contractors working near installed windows, HVAC openings, or interior transitions benefit from the reduced off-gassing profile.

Paintable After Cure

Once cured, XtremeSealant accepts most industrial and consumer topcoats, making it suitable for finish-visible sealing locations where raw sealant beads would be unacceptable. Testing compatibility prior to full application is always recommended, but the product is broadly compatible with common architectural paints.

ASTM C920 & AAMA 808.3 Compliant

Compliance with ASTM C920 Type S, Grade NS, Class 25 and AAMA 808.3 means XtremeSealant meets recognized industry performance benchmarks for exterior sealants. This makes specification inclusion and submittal documentation straightforward for commercial project teams.

Part of the Tamlyn Water Management System

XtremeSealant is a qualifying component of the Tamlyn Water Management System warranty, which covers TamlynWrap Drainable Wrap, ProSelect Commercial Wrap, and ProSelect Self Adhered when used together with other designated Tamlyn accessories. Using XtremeSealant as the system sealant supports eligibility for the 25-Year Product and Labor Limited Warranty and the 15-Year Product Only Limited Warranty.

Common Applications

Exterior Perimeter Sealing

XtremeSealant meets AAMA 808.3 for exterior perimeter sealing compound, making it a direct specification fit for sealing the perimeter of window and door frames against air and water infiltration on commercial and residential projects.

Flashing Transitions & Rough Opening Details

Used in conjunction with XtremeFlashing Tape and XtremeSeam Tape, XtremeSealant seals flashing transitions, sill pan terminations, and rough opening perimeters as part of a complete water management assembly.

Multi-Substrate Panel and Cladding Joints

The adhesive-grade bond strength and flexibility make XtremeSealant suitable for sealing joints between dissimilar cladding materials including aluminum composite panels, FRP, and fiber cement where differential movement must be accommodated.

Glass and Glazing Perimeter Seals

Adhesion to glass substrates allows XtremeSealant to be used for perimeter sealing of fixed glazing units, storefronts, and curtain wall components where a paintable, flexible seal is required.

Marble, Stone, and Laminate Substrates

The formulation bonds to non-porous natural stone and laminate surfaces, extending its usefulness into interior wet areas, countertop transitions, and stone cladding applications where most standard sealants perform poorly.

Metal-to-Metal and Metal-to-Substrate Joints

Compatible with stainless steel, galvanized steel, and aluminum, XtremeSealant is suited for sealing penetrations, fastener points, and joints in metal-framed assemblies and roofing/wall transition flashings.

Compatible Materials

• PVC
• Aluminum
• Glass
• Stainless Steel
• Galvanized Steel
• Wood
• FRP (Fiberglass Reinforced Plastic)
• Marble
• Natural Stone
• Laminate Substrates

Product Documents

• Catalog Page
• Product Brochure
• MSDS File

Application Instructions

Surface Preparation

1. Ensure all surfaces are clean, dry, and free of contaminants that could adversely affect adhesion.
2. Remove all old or existing sealant from the substrate before applying XtremeSealant.
3. Test a small area for compatibility before proceeding with full application, especially on unfamiliar or sensitive substrates.

Application

1. Load the 300 ml cartridge into a standard caulk gun.
2. Apply XtremeSealant to the prepared substrate in a continuous, even bead sized appropriately for the joint width and depth.
3. Tool the bead as needed to ensure full contact and adhesion to both joint faces.
4. Use with adequate ventilation to minimize vapor inhalation during application and cure.

Painting

1. Allow XtremeSealant to cure fully before applying any topcoat.
2. Test the selected paint for compatibility with the cured sealant on a small area prior to full application.
3. Most industrial and consumer paints are compatible with the cured product.

Technical Specifications

Safety Data Summary

Hazard Information

• Inhalation of vapor during application and cure may cause slight eye or throat irritation
• Contact with eyes, lips, or mouth may cause irritation
• Repeated or prolonged skin contact should be avoided
• Some cleaners and solvents may not be compatible with this product

Personal Protective Equipment

• Use in well-ventilated areas or provide adequate mechanical ventilation
• Avoid contact with eyes, lips, and mouth
• Limit skin exposure; wash hands thoroughly after handling

Safe Handling

• Use with adequate ventilation at all times during application and cure
• In case of contact with eyes, lips, or mouth, flush thoroughly with water; consult a physician if irritation persists
• Store cartridges in unopened containers at temperatures not exceeding 80°F
• Keep out of reach of children
• Refer to the MSDS for complete safety and handling information

Frequently Asked Questions

Q: Does XtremeSealant require a primer before application?
A: No primer is specified for most substrates. However, Tamlyn recommends testing a small area for compatibility before proceeding with full application on any unfamiliar or sensitive substrate.

Q: Can XtremeSealant be used as a standalone product or does it need to be part of the Tamlyn system?
A: XtremeSealant can be used as a standalone adhesive and sealant. However, to qualify for the 25-Year Product and Labor Limited Warranty, it must be installed as part of the full Tamlyn Water Management System alongside TamlynWrap Drainable Wrap or ProSelect products, XtremeFlashing Tape, XtremeSeam Tape, and XtremeCorners.

Q: How long is the shelf life and what are the storage requirements?
A: Cartridges have a 12-month shelf life in unopened containers stored at temperatures not exceeding 80°F. Exposure to heat above this threshold may reduce shelf life and performance.

Q: Can the cured sealant be painted?
A: Yes. The cured product is compatible with most industrial and consumer paints. Testing the selected paint on a small cured area before full application is recommended to confirm adhesion and finish quality.

Q: Is XtremeSealant safe for use in enclosed or partially enclosed spaces?
A: The solvent-free, non-isocyanate formula has a lower vapor emission profile than solvent-based alternatives, but adequate ventilation is still required during application and cure. Inhalation of vapor may cause mild eye or throat irritation.

Q: What is the packaging configuration for ordering?
A: XtremeSealant is packaged in 300 ml (10.1 fl oz) cartridges compatible with standard caulk guns, sold 24 tubes per carton.