
Sika® Firerate
Sika® Firerate is an intumescent fire rated, 1-component, acrylic joint sealant.
- Up to 4 hours fire resistance according to AS 1530.4
- Very good resistance to weathering
- Movement capability of ± 20 %
- Easy to smooth and very good workability
- Good adhesion to many different substrates
- Water clean-up of uncured sealant
Usage
Sika® Firerate is designed for fire rated movement and connection joints on porous and non-porous substrates. It is suitable for interior applications.Advantages
- Up to 4 hours fire resistance according to AS 1530.4
- Very good resistance to weathering
- Movement capability of ± 20 %
- Easy to smooth and very good workability
- Good adhesion to many different substrates
- Water clean-up of uncured sealant
Packaging
600ml foil paick, 15 foil packs per box
300 ml cartridge
Colour
Grey
Product Details
APPROVALS / CERTIFICATES
- AS 1530.4 FRL
- ISO 717.1 Rw (Ctr) = 64 (-13)
Composition
1- part acrylic dispersion
Shelf life
Sika® Firerate has a shelf life of 12 months from the date of production, if it is stored in undamaged, original, sealed packaging, and if the storage conditions are met.
Storage conditions
Sika® Firerate shall be stored in dry conditions, where it is protected from direct sunlight and at temperatures between +5 °C and +25 °C
Density
~1.45 kg/L
Shore A Hardness
After 28 days ~30
Movement Capability
±20 %
Service Temperature
−20 °C to +80 °C
Joint Design
The joint width must be designed to suit the joint movement required and
the movement capability of the sealant. The joint width shall be ≥ 10 mm
and ≤ 50 mm. The joint depth shall be ≤ 10 mm. A width to depth ratio of
2:1 must be maintained.
All joints must be correctly designed and dimensioned in accordance with
the relevant standards, before their construction. The basis for calculation
of the necessary joint widths are the type of structure and its dimensions,
the technical values of the adjacent building materials and the joint sealing
material, as well as the specific exposure of the building and the joints.
Note: Test certificates should be referred to while designing a firerated joint
Application
Backing Material
Use polyethylene foam backing rods
Ambient Air Temperature
5 °C to +40 °C, min. 3 °C above dew point temperature
Substrate Temperature
+5 °C to +35 °C
Curing Rate
at +23 °C / 50 % r.h. ~2 mm/24 h
Skinning time
at +23 °C / 50 % r.h. ~15 min
Consumption
Joint Size (W x D in mm) | Metres/Litre | Metres/Cartridge | Metres/Sausage |
20 x 10 | 5 | 1.5 | 2.5 |
30 x 15 | 2.2 | 0.66 | 1.1 |
40 x 20 | 1.25 | 0.38 | 0.63 |
50 x 25 | 0.8 | 0.24 | 0.4 |
SUBSTRATE PREPARATION
The substrate must be clean, dry, sound and homo- geneous, free from oils, grease, dust and loose or friable particles. Sika® Firerate adheres without primers and/or activators.
CLEANING OF EQUIPMENT
Clean all tools and application equipment immediately after use with water. Once cured, residual material can only be re- moved mechanically.