Intumescent Mastic Features:
Tested to BS & EN Standard
Up to 4 hours fire rating
Acoustic Insulation Rated
Certifire Approval
Product Description:
Intuchem intumescent mastic is a one part, fire rated, acrylic mastic with an acoustic rating.
It is designed for sealing gaps around fire doors, window frames and for sealing joints, voids and irregular holes in fire rated compartmentation structures - maintaining their integrity when sealing around pipes and cables that penetrate through them.
The sealant has been independently tested (Certifire approved) in accordance with BS & EN Standards and can provide up to 4 hours fire rating depending on depth/width and volumetric area.
The sealant can be used on most construction substances, although we do recommend that a small area is tested on unusual substrates. It can be used in most low movement joints up to 25mm wide with no slump and can be overpainted.
AERATED CONCRETE / Acoustic performance:
Weighted Sound Reduction Index (RW) of up to 57db to BSEN ISO 140-3
AERATED CONCRETE Fire Performance
| JOINT |
GAP WIDTH MM
|
SEAL DEPTH MM
|
INSULATION
MINS
|
INTEGRITY MINS
|
| HORIZONTAL |
10
|
6
|
54
|
240
|
| HORIZONTAL |
20
|
20
|
UNCLASSIFIED
|
240
|
| VERTICAL |
10
|
6
|
UNCLASSIFIED
|
231
|
| VERTICAL |
12
|
12
|
UNCLASSIFIED
|
240
|
| VERTICAL |
15
|
10
|
40
|
240
|
| VERTICAL |
15
|
15
|
42
|
240
|
| VERTICAL |
20
|
15
|
49
|
240
|
| VERTICAL |
20
|
20
|
73
|
240
|
| VERTICAL |
35
|
20
|
92
|
240
|
| VERTICAL |
35
|
25
|
168
|
240
|
TIMBER Fire Performance
| JOINT |
GAP SURFACE
COMBINATION
|
GAP WIDTH MM
|
SEAL DEPTH MM
|
INSULATION MINS
|
INTEGRITY MINS
|
| HORIZONTAL |
HARDWOOD/ HARDWOOD
|
25
|
25
|
64
|
67
|
| HORIZONTAL |
HARDWOOD/ HARDWOOD
|
10
|
15
|
40
|
63
|
| HORIZONTAL |
SOFTWOOD/ SOFTWOOD
|
10
|
35
|
81
|
91
|
| HORIZONTAL |
SOFTWOOD/ SOFTWOOD
|
25
|
35
|
74
|
74
|
| VERTICAL |
HARDWOOD/ HARDWOOD
|
10
|
15
|
37
|
59
|
| VERTICAL |
HARDWOOD/ HARDWOOD
|
25
|
25
|
51
|
61
|
| VERTICAL |
SOFTWOOD/ SOFTWOOD
|
25
|
35
|
82
|
82
|
| VERTICAL |
SOFTWOOD/ SOFTWOOD
|
10
|
35
|
80
|
87
|
MIXED MATERIALS Fire Performance
| JOINT |
GAP SURFACE
COMBINATION
|
GAP WIDTH MM
|
SEAL DEPTH MM
|
INSULATION MINS
|
INTEGRITY MINS
|
| HORIZONTAL |
STEEL/ STEEL
|
25
|
25
|
40
|
240
|
| HORIZONTAL |
STEEL/ CONCRETE
|
25
|
25
|
48
|
240
|
| HORIZONTAL |
CONCRETE/ CONCRETE
|
30
|
25
|
48
|
240
|
| HORIZONTAL |
VERMICULITE/ AERATED CONCRETE
|
25
|
25
|
48
|
240
|
| VERTICAL |
STEEL/ STEEL
|
25
|
25
|
58
|
240
|
| VERTICAL |
STEEL/ CONCRETE
|
25
|
25
|
52
|
240
|
| VERTICAL |
CONCRETE/ CONCRETE
|
30
|
25
|
33
|
240
|
| VERTICAL |
VERMICULITE/ AERATED CONCRETE
|
25
|
25
|
58
|
240
|
