Verified by manufacturer 2 months ago
One-part, high modulus, fire rated trafficable sealant.
For fire protection of construction, contraction and expansion joints within stadia terracing (due to high Shore A hardness), floors, curtain walling and building façades.
A fire rated modified silane (MS) based sealant which cures quickly and provides good adhesion to most building materials. When subjected to fire, Flamex MS320 forms a stable insulating char which provides protection to the remaining sealant. Heat, flames and smoke are prevented from passing through the joint to adjacent areas of the structure.
Features and benefits:
Color | Grey |
Finish | Smooth |
Material | Modified silane (MS) |
Shape | Formless |
Length | Bespoke |
Width | Bespoke |
Height | Bespoke |
Material | Modified silane (MS) |
Uniclass | |
CAWS | H42/661 Sealant joints H42/661 Sealant joints E40/530 Sealant E40/530 Sealant |
Material | Modified silane (MS). |
Fire performance | |
Fire resistance | To BS 1366-4 in expansion joints, up to 5 hours (300 minutes).Guidance for specification option: Dependent on wall construction and joint size, consult manufacturer's literature for more information. |
Cure speed | 2 mm per day (23°C at 50% RH). |
Application temperature | 5–30°C. |
Shore A hardness | 40. |
Joint width | For joint widths of: 6–25 mm (joint design - wall). 6–30 mm (joint design - floor). Guidance for specification option: For wall joints 6–12 mm wide, a depth of 10 mm is required. For wall joints 13–25 mm wide, a depth of 15 mm is required. For floor joints 6–12 mm wide, a depth of 10 mm is required. For floor joints 13–20 mm wide, a depth of 15 mm is required. For floor joints 21–30 mm wide, a depth of 20 mm is required. |
Movement | 20% butt joints (at 1:1 width/ depth ratio). Manufacturer guidanceMovement accommodation factor (MAF) |
Flash point | >100°C. |
Solubility in water | Insoluble in water. |
Pressure | <0.001 kPa (at 20°C). Manufacturer guidanceVapor pressure |
Density | 1.42 (at 20°C). Manufacturer guidanceRelative density |
Material | Modified silane (MS) |