Intumescent Sealant Installation Guide

Using Intumescent Acrylic Sealant

Do not apply this sealant if the ambient temperature is below 5 degrees Celsius (5^oC) during the time of application.

All surfaces should be clean, dry and free from frost, grease and any other contamination. The sealant should not be used on substrates that bleed oils, plasticisers or solvents.

Minimum depth of seal should be at least 10mm.

For gaps over 10mm width, insert a backing foam using a minimum of 24Kg/m² density of polyethylene foam, fire retardant PU or mineral fibre board of 140Kg/m² density. Apply mastic within gap so that the gap to depth ratio is the same.

Masking tape should be used where protection to substrate is important, this should be removed immediately after tooling off, (ensure that air bubbles are excluded and that an acceptable surface finish is obtained).

Where ever possible use a suitable backing material to ensure the correct depth of material has been applied

Ensure records of all installations are kept.

Further Product Information

Intuchem intumescent acoustic Acrylic sealant is a water-based, acrylic composition designed to provide fire barrier and smoke seal for gaps of up to 25mm within a structural floor or wall composed of different substrates.

The finished product remains flexible between -20^oC to 70^oC and in the presence of fire the mastic seal expands to form a fire and smoke barrier for up to 4 hours.

 

The advantages of the Intuchem intumescent sealant are as follows:-

· Suitable for indoor and outdoor environment without additional protection
· Glass transition temperature below -25^oC and therefore the seal remains flexible between -20^oC to 70^oC
· Halogen free, free from asbestos, fibres (MMMF) and solvents
· Not affected by fungus, vermin or rodent .
· Long life and easy to use
· Acoustic isolation

Product Data
Specific Gravity: 1.32
Resistance To Slump: 25mm x 25mm Depth At Ambient Temperature
Tack Free: 40 Minutes Depending On Temperature And Humidity
Total Movement: Low To Medium. 10% In Butt Joints
Application Temperature: 5^oC To 45^oC
Service Temperature: -20^oC To 70^oC
Adhesion: Excellent to many common building surfaces
Fire Barrier: 4 Hours To BS 476 Part 22

 

 

The information in this publication is accurate to the best of the knowledge of Intuchem Ltd.

LEGAL:
As part of our policy of ongoing improvements, we reserve the right to modify, alter or change product specifications without giving notice. Product illustrations are representations only. All information contained in this document is provided for guidance only, and as Intuchem Ltd has no control over the installation methods of the products, or of the prevailing site conditions, no warranties expressed or implied are intended to be given as to the actual performance of the products mentioned or referred to, and no liability whatsoever will be accepted for any loss, damage or injury arising from the use of the information given of products mentioned or referred to herein.