Everbuild Fireseal 300 is a one-part, acrylic-based, intumescent sealant that gives a firm yet flexible seal. The product will resist fire passages for up to 5 hours. The selected fillers used in this formulation also make it suitable for use as an acoustic sealant. Alternative fire product from Everbuild is the Fire Seal 400 – slightly less fire-resistant time but silicone-based over the acrylic 300, making it slightly easier to apply.
When exposed to heat, this product will swell greater than 3 x it’s original size.
– No priming required for most construction substrates.
– Joint movement capability of +/- 12.5%.
– Non-slump – therefore, it is easy to apply and tool off.
– Tack free in 15 minutes.
– Can be painted.
– In addition, this product has excellent acoustic properties for sound deadening –average noise reduction of 29dB.
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– Sealing voids, irregular holes & joints in walls.
– Also, for maintaining the integrity of pipes and cables that penetrate them.
– For internal perimeter pointing of fire rated doors & windows.
All surfaces must be clean, dry and dust-free, Everbuild Wonderwipes are a great handy cleaner to use. All flaking surface coatings and old sealant should be removed before application. Everbuild Fireseal 300 does not require a primer on most common surfaces, although we recommend adhesion tests before full-scale application. However, if the joint is likely to be immersed or if adhesion is poor.
– Not for use on substrates that may bleed oils, solvents or plasticizers.
– Also, this product should not be used in glazing systems.
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We have purchased our Mapei Grout and Mapei AC silicone from Sealant Supplies for the past 5 months, they have been... quick to dispatch and always seem to have the colours we require in stock. Will keep using them.read more