Seamsil® 400 Fixings Encapsulation - Temporary Corrosion Repair Solution

A silicone-based remedial treatment formulated specifically to arrest the adverse effects of rust and chemical corrosion, industrial pollution and is particularly effective in marine/ coastal environments. Installed by manufacturer network of Approved Contractors, all project works are inspected and certified to exacting quality standards – consult manufacturer for details.

Features and benefits:

• Weather and ultraviolet (UV) resistant.
• Proven corrosion resistance.
• Encapsulates the damaged area to restrict further deterioration.
• Water repellent seal.
• Primer-less adhesion.
• Remains tough and flexible, and is designed to withstand normal surface movement, ensuring continued optimum performance even in aggressive environments.
• Long life protection in elasticity and encapsulation.
• Silicone systems do not degrade by chalking and do not have self-cleaning properties.

System components and installation application: Asbestos/Fiber cement .

• Seamsil sealant: The Seamsil sealant is gun-applied around the base of the fixing, forming a complete bridged seal and tooled off to a neat edge.
• Seamsil base coat: Whilst the Seamsil sealant is still wet, liberally apply Seamsil base coat by brush to encapsulate and visually obscure the complete fixing detail, taking the coating onto the roof sheet by approximately 25 mm. Allow to cure.

System components and installation application: Metal roof.

Seamsil® Top Coat

Brush apply one liberal coat of Seamsil® Top Coat over and

around the roof fixings, ensuring a full encapsulation is

achieved, especially at the base. Allow to fully cure.

Seamsil® Fixing Grade Sealant

Place nozzle over the fixing, ensuring it is flat and level to

the roof sheet. Squeeze the trigger ensuring that required

amount of sealant dispenses to encapsulate the fixing.

Allow to fully cure.

Seamsil sealant:

• Chemical base: Alkoxy silicone, room temperature vulcanizing.
• Colour: Grey.
• Specific gravity 1.39.
• Shore A Hardness: 20 (approximately).
• Time to full cure: 10–14 days.
• Movement accommodation: ±50%.
• Elongation at break: 700%.
• Tensile strength: 1.6 N/mm².
• Application temperature: 3–60°C.
• Dew point: Surface to be 2°C above the dew point.

Seamsil base coat:

• Colour: Grey.
• Chemical base: Silicone coating in a spirit carrier.
• Specific gravity: 1.22.
• Shore A Hardness: 20 (approximately).
• Dry film thickness: Complete system – 350 microns (minimum).
• Time to full cure: 10–14 days.
• Solids content: By volume – 80%.
• Movement accommodation: ±50%.
• Elongation at break: 750%.
• Tensile strength: 1.6 N/mm².
• Application temperature: 3–60°C.
• Dew point: Surface to be 2°C above the dew point.