Astro PFP FR Graphite - Intumescent Fire Sealant

Astro PFP FR Graphite is a high pressure sealant designed to prevent the spread of fire, smoke and gases through openings in fire rated walls and floors.

Astro PFP FR Graphite expands when it is subjected to fire and closes openings around penetrations when any combustible or low temperature melting materials have burnt away.

It is designed to fire seal difficult services which traditional fire rated mastics do not achieve such as large plastic pipes.

Astro PFP FR Graphite can be used with a suitable filling material, i.e. stone wool or Astroflame backing material in order to ensure correct width to depth ratio and to reduce the shrinking of the sealant during curing.

Minimum depth and maximum width of the joints are included in the installation instructions. Thermal activation takes place at 150°C when the material will expand (intumesce) to prevent the passage of fire and smoke for periods up to four hours.

Features and benefits:

• Classified in most constructions for plastic pipes, cables and combustible pipe insulations.
• Easy to apply.
• High sound insulation.
• Low emissions - environmentally and user friendly.
• Simple to apply with a smooth surface finish.
• Permanently flexible – will accommodate movement up to 12.5%.
• No priming necessary for application to most materials, see the installation instructions for further details.
• Suitable for most surfaces, included concrete, bricks, steel, wood, gypsum, glass, plastics and most non-porous surfaces.
• Hardens quickly, tack free after one hour.
• The fire performance specification of the joint filler has been derived when the joint filler has been allowed to cure for 30 days.
• Minimum 12 months storage time.
• 30 years working life.
• Available in 310 ml cartridge.