Flashpoint is a high-performance, neutral cure silicone sealant specifically designed for pointing work between lead and brick or masonry. Whether you're working on a flashing installation or repair, Flashpoint offers a cleaner, quicker, and more reliable alternative to traditional mortar.
Unlike mortar, which can crack or fail over time due to movement, Flashpoint remains flexible and strong, accommodating the natural expansion and contraction of both lead and masonry in response to temperature changes.
Why Choose Flashpoint Over Mortar?
Traditional mortar joints often struggle to keep up with the movement of lead in changing weather conditions. Over time, this can cause cracking and gaps, allowing water to seep through. Flashpoint eliminates this problem by forming a permanent, flexible, and waterproof joint.
With a life expectancy of up to 20 years, Flashpoint ensures long-term protection and professional results. It’s easier to work with, bonds quickly, and doesn’t require the same setting or curing conditions as mortar—making it ideal for year-round use.
Key Performance Benefits
Provides excellent adhesion to both lead and masonry
Neutral cure formula avoids the white staining caused by acid-cure silicones
Flexible and durable – moves with the building materials
Can be applied in extreme temperatures, even as low as -65°C
Recommended by the Lead Sheet Association
Quick and easy application – no mess, no hassle
Ideal Applications
Flashpoint is perfect for:
Pointing lead flashings into brick or masonry joints
Repairs where traditional mortar has failed
Cold-weather applications where mortar can’t be used
Long-term sealing of lead detailing in roofing or construction projects
Product Details
Size: 310ml tube
Colour: Grey
Type: One-part, silicone-based, neutral cure sealant
Recommended for: Lead to masonry/brick pointing
Frequently Asked Questions
1. Why is Flashpoint better than traditional mortar?
Flashpoint is flexible and durable, meaning it moves with the lead and masonry as temperatures fluctuate. Mortar, by contrast, is rigid and can crack over time, especially when exposed to direct sunlight or frost.
2. Can Flashpoint be used in cold weather?
Yes! One of Flashpoint’s major advantages is its ability to be applied in temperatures as low as -65°C, unlike mortar which contains water and is unsuitable for use in freezing conditions.
3. Will Flashpoint stain the leadwork?
No. Flashpoint uses a neutral cure formula, so it avoids the white staining that acid-cure sealants can cause on lead. This ensures your finish looks clean and professional.
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