Telephone : +44 (0) 1252 333601

  • Facebook
  • Twitter
  • LinkedIn
  • YouTube
+
Pyromas A - Intumescent Acrylic Sealant
PyromasA-DisplayShot-1200

Pyromas A – Intumescent Acrylic Sealant

Intumescent Acrylic Sealant

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.

  • 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
  • Available in white, brown and grey
  • Can be painted after curing
  • Supplied in 310ml cartridges to fit standard mastic guns or 600ml sausages

Technical

Description

Pyromas A is a one part sealant system which is solvent free. When subjected to fire, a chemical reaction forms a safe, inorganic meringue. 

The intumesced product provides fire sealing in building joints up to 35mm wide.

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.

Applications

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.

Packaging

Pyromas A is supplied in 310ml cartridges to fit standard skeleton mastic guns. Also supplied as 600ml sausages. Box quantities are 25 per box.

Physical Data

Colours: White, Brown & Grey

Storage Temp: +5° to +25°C

Reaction Temp: 120°C

Application Temp: +5° to +30°C

Volume Expansion: 150%

Tack Free Time: 10-60 minutes (depending on conditions)

Shelf life: 12 months

Joint movement: +/- 10%

Estimating Quantities for Pyromas A

To calculate the required number of cartridges required to fill a gap use the following equation:

W x D x L = N

N÷310= Number of Cartridges

W=Width of gap in mm.  D=Depth of gap in mm.  

L=Length of gap in mtrs.  N=Volume of material.

Reviews

There are no reviews yet.

Be the first to review “Pyromas A – Intumescent Acrylic Sealant”

Documents

All Mann McGowan documents can now be downloaded via our new downloads page.

Follow the link, select the documents you require and we will send you a link via your email address.

Videos

No video available at present.