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Fire & Acoustic Sealant 310cc Tubes - White

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Intumescent Fire & Acoustic Mastic - 310cc Tubes (White)

Ultra FR Acrylic is a halogen free, polymer emulsion based sealant that swells when subjected to temperatures in excess of 125oC and forms a char coat that restricts the passage of smoke and fire. It is easily applied and dries to a flexible and smooth surfaced material which is readily over paintable. It has excellent adhesion to a wide range of substrates and will not harden or crack with age
Specification Compliance 

Ultra FR acrylic has been independently tested to the following assessments:
-an indicative fire test based on BS476 Part 20 at Warrington Fire Research and achieved a 4 hour fire rating (integrity) for a range of vertical and horizontal joints up to 35mm wide between various non-combustible construction materials. A 1 hour fire rating (integrity) was achieved for a range of vertical joints up to 25mm wide between combustible materials (timber).
-Naval Engineering standard test NES 711, issue 3 and achieved an average toxicity index of 0.44.
-Sound tested for acoustic performance values and achieved values of between 46 and 55 dBA indicating the sealant should uphold acoustic performance requirements of most normal partitioning systems. 
Tested Independently to current specification  BS EN 1366 Part 4. Also complies with previous test BS 476 Parts 20. Classification ISO 11600 – 12.5P


Ultra FR acrylic forms a fire and smoke seal in joints up to 35mm wide without slumping. It is ideal for sealing joints in and around internal partitions, lap joints in fire-rated cladding and for sealing between fire doors and fire-rated walls.  It is recommended that a sealant depth of at least 15mm be applied.
If the sealant is to be overpainted, building regulations may require a fire resistant coating. 
Technical Details

Movement Accommodation:           + or - 15%
Skinning Time:                               15 mins to 1 hour depending on conditions.
Cure time:                                       5 to 15 days for 15mm X 20mm bead.
Hardness Shore A:                         25 - 30
Temperature Resistance:               -20oC to +70oC
Paintability:                                     With most paints.
Application Temperature:               +5oC to 40oC
Cleaning:                                        Uncured sealant with water.
Shelf Life:                                       min. 12 months when stored in unopened containers as recommended.
Specific Gravity:                             1.62 – 1.66

Application Instructions

To achieve a high quality joint, clean all surfaces, remove dust and ensure surfaces are dry. Non porous surfaces should be degreased using a suitable degreasing agent. Highly porous surfaces should be sealed with a suitable primer. Apply masking tape to each side of joint and gun sealant firmly into joint, smoothing off with a wetted spatula.  Masking tape should be removed within 10 minutes of application
25 tubes per box.

Health & Safety

Ultra FR Acrylic sealant presents no known health hazards when used as recommended. Consult Health and Safety data sheet for further information.  As with all chemical product, care should be taken during use and storage to avoid contact with foodstuffs, skin, eyes and mouth. If accidentally ingested, seek medical attention do not induce vomiting and give copious amounts of water to drink. KEEP AWAY FROM CHILDREN AND ANIMALS.

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