If you're looking for a reliable lead sealant for use in construction or roofing, ARBO® Lead Seal S is a high-performance, solvent-free lead seal designed to deliver a long-lasting, watertight finish. Unlike traditional mortar, this advanced lead sealant offers exceptional flexibility and durability, making it ideal for sealing joints in lead flashings, masonry, and brickwork.

Key Benefits of Using ARBO® Lead Sealant

• Solvent-Free & Neutral Curing: It is completely solvent-free and uses neutral curing technology to prevent corrosion of lead and other metals. It's safe for use on sensitive substrates and won't damage adjacent materials.

• Highly Flexible & Crack-Resistant: Unlike rigid mortars, ARBO® Lead Seal S maintains its elasticity over time. It won't dry out, shrink, or become brittle, even under harsh weather conditions.

• Long-Term Durability: Designed to last over 25 years, this lead sealant withstands temperatures from -40°C to +150°C and has excellent UV resistance, making it ideal for internal and external applications.

• Easy to Apply: Supplied in 310ml cartridges, it can be applied using a standard caulking gun, making it easy for contractors to use on-site with minimal preparation.

Chemical & Weather Resistance This robust lead sealant resists most dilute acids and alkalis, providing dependable performance in demanding environments.

Where to Use a Lead Seal

ARBO® Lead Seal S is designed for a wide range of professional applications, including:

• Sealing and jointing lead sheeting and flashings: Ideal for roofing contractors who need a flexible seal for lead flashings without using traditional mortar.

• Pointing into brickwork, masonry, and concrete: A perfect solution for durable joint sealing in building façades and structures.

• General building and repair work: Suitable for new installations and repair projects involving lead, stone, or brick interfaces.
  
  NB: Please contact ARBO Technical Services for advice regarding specific uses

Joint Preparation
The joint surfaces must be clean, dry and free from all contamination. The surfaces should be degreased using the appropriate ARBO Cleaner. ARBO Primer 2650 may be required on some substrates. It is recommended that ARBO Technical Services should be consulted, and advice obtained regarding the choice of primer for specific purposes.

All use should be in accordance with BS8000-16:1997 +A1:2010: Code of practice for sealing joints in buildings using sealants.

Joint Backing
Where applicable, appropriate joint filler e.g. closed cell polyethylene foam, should be used to provide the correct joint depth