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PYROMAS A – ACRYLIC BASED INTUMESCENT MASTIC WHITE 310ml

£6.19 inc VAT

Pyromas A is an intumescent sealant combining water-based acrylic emulsion with fillers to provide high levels of fire resistance in a range of building applications. The one-part sealant is solvent free and when subjected to fire, a chemical reaction forms a safe, inorganic meringue, which provides proven fire sealing in building joints incorporating concrete, wood and metal.

Features

  • Effective, slump-free sealing in joints up to 35mm wide
  • Proven 4-hour fire resistance
  • Can also provide 52dB acoustic rating
  • Permanent sealing for all low-movement joints, dry lining and partitions
  • Easily smoothed to a good surface finish
  • Can be painted after curing
  • Supplied in 310ml cartridges to fit standard mastic guns

200 in stock

SKU: MMG00073 Categories: ,

Description

Performance

Fire resistance tests have been conducted to BS476: Part 20: 1987 achieving 4 hours fire resistance in gaps up to 35mm wide. Tests were conducted between a number of substrates including Hardwood, Softwood, Steel, Concrete, Vermiculite Board and Aerated Concrete. Pyromas A shows good resistance to a wide range of commonly found chemicals. Care must be taken to avoid prolonged contact with hydrocarbon based products.

Application

Pyromas A is suitable as a permanent fire seal in low movement joints, door frame to wall gaps, dry lining and partitions.

Construction

  • Joints in structures should be dry, clean, and free of powder or dust.
  • Pyromas A should be inserted to the correct depth to ensure the necessary fire performance. To improve surface finish, smooth with a spatula. Cured Sealant can be over-painted.
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