Intumescent Mastic
Tested to BS476: Part 20: 1987
Tested to EN1366-4
Up to 4 hours fire resistance
Easy to use
Long shelf life
Acoustic insulation
For internal or external use
NHBC Type Approval
Description
A one part fire rated intumescent acrylic mastic designed for sealing gaps around fire doors, window frames and for sealing joints, voids and irregular holes in fire rated structures, and for maintaining their integrity when sealing around pipes and cables that penetrate them.
The mastic has been independently tested in accordance with BS476: Part 20 & 22: 1987 and can provide up to 4 hours fire resistance depending on depth/width and volumetric area. PR EN1366-4 and NHBC Type Approval.
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. Further details and installation instructions available on request.
Acoustic performance
Weighted Sound Reduction Index (Rw) of up to 57db to BSEN ISO 140-3.
Fire Resistance Performance
Fire Test or Assessment Report
BS476 Part 20: 1987 PR EN1366-4 | Loss Prevention Council CC89629 | NHBC Type Approval.
| Joint |
Gap Surface Combination
|
Gap Width mm
|
Seal Depth mm
|
Insulation
Mins
|
Integrity Mins
|
| HORIZONTAL |
AERATED CONCRETE/ AERATED CONCRETE
|
10
|
6
|
54
|
240
|
| HORIZONTAL |
AERATED CONCRETE/ AERATED CONCRETE
|
20
|
20
|
UNCLASSIFIED
|
240
|
| VERTICAL |
AERATED CONCRETE/ AERATED CONCRETE
|
10
|
6
|
UNCLASSIFIED
|
231
|
| VERTICAL |
AERATED CONCRETE/ AERATED CONCRETE
|
12
|
12
|
UNCLASSIFIED
|
240
|
| VERTICAL |
AERATED CONCRETE/ AERATED CONCRETE
|
15
|
10
|
40
|
240
|
| VERTICAL |
AERATED CONCRETE/ AERATED CONCRETE
|
15
|
15
|
42
|
240
|
| VERTICAL |
AERATED CONCRETE/ AERATED CONCRETE
|
20
|
15
|
49
|
240
|
| VERTICAL |
AERATED CONCRETE/ AERATED CONCRETE
|
20
|
20
|
73
|
240
|
| VERTICAL |
AERATED CONCRETE/ AERATED CONCRETE
|
35
|
20
|
92
|
240
|
| VERTICAL |
AERATED CONCRETE/ AERATED CONCRETE
|
35
|
25
|
168
|
240
|
| 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
|
| 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
|
Availability
Intumescent Mastic comes in 310ml cartridges.
Colours - Brown, Grey and Off White (all can be overpainted)
Health and Safety
Do not ingest. Avoid contact with the skin and eyes. Use barrier cream and/or gloves. Normal good industrial practices should be observed.
