Hourdex®
Technical data sheet
| POWDER | Test std. | MORTAR (sand 0-3mm, Volume 1:3) | Test std. | |
|---|---|---|---|---|
|
Dry Density |
800 g.l.
+/-10% |
BS459 |
1425g.l +/- 25g dry
1650g.l +/- 50g wet |
EN1015-11
EN 1015-6 |
|
Whiteness |
40.55 |
NFX08.012 |
|
|
|
Workability (depending on water addition) |
|
|
210mm +/- 10mm |
EN1015-3 |
|
Water retention |
|
|
81% +/- 3% |
CSTB 2669-4 |
|
Compressive strength
24 hrs
7 days
28 days |
|
|
1.5 N.mm2
4-5 N.mm2
6-7 N.mm2 |
BS998.2
BS998.2
BS998.2 |
|
Thermal conductivity |
|
|
0.540 W/m.K |
EN 1745 |
|
Vapour permeability |
|
|
1,60.10-9kg/m2sPa (0.77g x m2 x h x mmHg) |
EN 1015-19 |
|
Elasticity moduli |
|
|
7000 – 9000 MPa |
CSTB |
|
Capillarity |
|
|
0.75 g.min. |
|
|
Fire resistance |
|
|
Class A1 (with silica or calcareous sands) |
|
Suitable for
Bedding and pointing mortars, stipple
and base coats, limecrete, above the roof line, chimneys, lime screed, floor tiling. Before starting, always try on a small test area.
Mixing
Up to 5 minutes in a conventional drum mixer.
Application
Application by spray gun is possible. Please consult us.
Working temperatures
Not below 8oC or above 30oC. Make sure that high suction materials are thoroughly dampened before application. Avoid rapid drying due to high temperatures or strong winds by curing with a light water mist several times a day if necessary. See Protecting Lime Mortar.
| Dosages | Hourdex® | Sand (0-3mm) | By volume |
|---|---|---|---|
|
Bricks, blocks, |
1 bag (25kg) |
85 litres |
1 : 3 sand |
|
Floor tiling |
1 bag (25kg) |
85 litres |
1 : 3 sand |
|
Roofing |
1 bag (25kg) |
70 litres |
1 : 2.5 sand |
|
Chimneys |
1 bag (25kg) |
65 litres |
1 : 2.25 sand |
|
Renders (base coat)
Manual application
Sprayed application |
1 bag (25kg)
1 bag (25kg) |
70 litres
60 litres (+/-10%) |
1 : 2.5 sand
1 : 2 sand |