The Grafo-Therm Treatment
In the dry state Grafo-Therm is an efficient thermal insulant, albeit that a 1.5mm thickness would not be efficient against heat loss, it does put back the time before dew point occurs, thereby preventing or considerably reducing the periods during which condensation forms. Thereby reducing the amount of condensation formed during any one 24 hour period.
Whenever dew point is reached on the surface coated, condensation will form and this will immediately be absorbed by the coating. A 1.5mm thickness can absorb and control against dripping up to 1.0 litres moisture per m². Having absorbed moisture it is most important to effect rapid evaporation and removal from the cavity, when conditions change to drying.
For this Grafo-Therm is superb, for example, when sprayed onto a 1000m² corrugated roof the textured finish of the compound effectively increases the specific drying surface by at least 10 times = 10,000m², on most corrugated sheets this can be increased by 20% to allow for the corrugations – 12,000m² of drying surface.
Grafo-Therm having proven absorption and capillary capabilities assures maximum benefit from this large specific drying surface, enabling fast and efficient cyclic drying.
The release properties of Grafo-Therm are faster per thickness and area than competitive materials which rely on greater thickness being applied.
Grafo-Therm has passed the CONDENSATION CONTROL TEST
The effect of Grafo-Therm can be proved with a British testing method (Ministry of supply SSF B 111)
A cone-shaped copper vessel is sprayed on the outside with Grafo-Therm and placed together with an identical untreated cone in a room at 20 degrees and 60% relative humidity.
Both cones are filled with ice water. RESULT:
Untreated surface
First drop after 35 minutes
After 6 hours collected 33cl of water
Surface treated with Grafo-Therm
No condensation water collected