Intufire® Acrylic
Verified by manufacturer 4 months ago
One-part fire-resistant and acoustic rated joint acrylic sealant, suitable for horizontal and vertical joints.
Application
- Sealing joints, voids and irregular holes where fire resistance up to four hours is required.
- For perimeter sealing of internal, fire rated screens, partitions, service penetrations and door or window frames.
- Suitable for sealing joints, voids and irregular holes in fire walls, partitions, door architraves, service penetrations, floors and other structures.
- To maintain integrity when sealing around pipes, services and cables.
- For bedding of hinges and locks in fire doors. Sealing fire rated ductwork.
- Consult literature for further application details.
Description
A waterborne, one-part fire-resistant and acoustic rated joint sealant which provides a firm, flexible seal to joints in a wide variety of fire-rated structures where fire resistance up to four hours is required. Its intumescent properties cause the sealant to swell up and char in the presence of heat, preventing the spread of smoke and fire through the joint.
Features and benefits:
- Good adhesion to timber, plasterboard, masonry, blockwork, plaster, concrete and many other common building surfaces.
- Formulated using an acrylic emulsion to provide a firm seal whilst retaining a degree of flexibility.
- Up to four hours' fire resistance.
- Reduces sound transmission in joints.
- Suitable for horizontal and vertical joints without compromising fire rating performance.
- Joint movement capability of ±12.5%.
- Over-paintable with solvent and water based paints.
- Will not support combustion.
- Water based, solvent and halogen free.
- For use in joints up to 50 mm.
- Non-flammable.
- Tested to BS 476-20 and BS EN 13666-3 with additional guidelines from BS EN 1366-4.
- Contains fungicide.
- No slump or staining.
General information
Color | Grey White |
Material | Acrylic |
Uniclass | |
CAWS | P12/390 Sealant P12/48 Sealant – fire-resisting acrylic |
Product range |
Specification data - Acrylic construction joint sealants
Standard | To BS EN ISO 11600, BS 476-20, BS EN 13666-3, BS EN 1366-4 and BS EN ISO 140-3. |
Sealant type | Water based acrylic intumescent. |
Class | F-12.5P. |
Colour | Grey.White. |
Fire performance | Intumescent seal with fire resistance up to four hours. |
Adhesion | Good adhesion (when applied to wood, plaster, plasterboard, blockwork). |
Chemical resistance | Fair to dilute acids and alkalis. |
Curing | No curing reaction takes place. Dries through evaporation. |
Hardness (shore A) | 25 at 25°C. |
Movement | ±12.5% (accommodation). |
Shrinkage | <25%. |
Specific gravity | 1.56–1.60 g/cm³. |
UV resistance | Good. |
Service temperature range | -15 to +70°C. |
Application temperature range | +5 to +30°C. |
VOC content | Volatile content: <25%. |
AcousticRating | To BS EN ISO 717-1: 40 (-3;-8)dB Rw (C;CTtr). |
Literature
Intufire® Acrylic