High-Performance Silicone Seam Sealer for Roof Repairs & Detail Work Professional-Grade Protection for Seams, Penetrations, and Fasteners
QUIK-SHIELD® Seam Sealer is a professional-grade silicone seam sealer and repair mastic designed to protect seams, penetrations, and fasteners across a wide range of roofing systems and architectural surfaces.
Once cured, it forms a durable, breathable, water-resistant barrier that resists degradation from ultraviolet exposure and natural weathering, making it ideal for long-term roof maintenance and repair applications.
Why QUIK-SHIELD® Seam Sealer
- Targeted Seam & Detail Protection
Designed specifically for seams, penetrations, and fasteners, QUIK-SHIELD® Seam Sealer provides reinforcement where roofs are most vulnerable to leaks and failure. - Durable, Flexible Silicone Performance
With strong tensile strength and controlled elongation, the cured material provides a resilient seal that can handle movement while maintaining integrity. - Weather & UV Resistance
The cured silicone membrane resists degradation from sunlight, moisture, and environmental exposure, helping extend the life of roof systems. - Easy Application for Repairs
QUIK-SHIELD® Seam Sealer is designed for straightforward field application using common tools, making it ideal for repairs, maintenance, and detailing work.
Key Specs at a Glance:
| Property | Value |
|---|---|
| Product Type | Silicon seam sealer/repair mastic |
| Tensile Strength | 305 ± 10 psi |
| Elongation | 60% ± 10 |
| Tear Resistance | 25 ± 5 lbf/in |
| VOC | <50 g/L |
| Solids by Weight | 97% ± 2 |
| Solids by Volume | 91% ± 2 |
| Tack-Free Time | 2 hours |
| Dry to Touch | 6 hours |
All values are based on lab conditions at 77°F and may vary under field conditions.
Application & Performance
QUIK-SHIELD® Seam Sealer is typically applied in a single application to achieve uniform coverage and proper seal integrity.
- Tack-free in approximately 2 hours
- Dry to touch in approximately 6 hours
- Cure time varies based on temperature, humidity, and thickness
Recommended application:
- Approximately 80–120 linear feet per application (depending on surface and conditions)
- Must result in a continuous, void-free, pinhole-free seal
Application Guidelines
- Do not apply below 40°F ambient temperature
- Do not apply to wet or damp surfaces
- Avoid application when rain is expected
- Ensure all surfaces are free from dust, oil, mildew, or loose material
- Asphaltic substrates may require a bleed-blocking primer to prevent discoloration
QUIK-SHIELD® Seam Sealer may be used in areas with ponded water, though proper drainage is recommended by industry standards.
Storage & Shelf Life
- Store between 35°F and 75°F
- Shelf life: 18 months (unopened containers)
- Can be stored in unheated warehouses without risk of freezing

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