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F L A M E M A S T I C A P P L I C A T I O N R E F E R E N C E S |
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Application recommendations:-
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Surface Preparation:
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Cleaning of cables is generally not necessary prior to the spray application of FLAMEMASTIC. However, thick layers of dust should be removed by vacuum cleaning, sweeping or washing off with water. Heavy layers of grease or oil should be removed with dry rags.
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Thinning:
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Thinning of FLAMEMASTIC is not recommended for spray or brush application, as the thixoropy is reduced. Where FLAMEMASTIC is applied to mineral wool panels by roller, the material may be thinned up to 10% with water.
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Application Procedure:
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FLAMEMASTIC should be applied, wherever possible, by spraying. Where brush application becomes necessary, the material must be built up to the recommended thickness in several layers. A very thin first coat will facilitate adhesion of subsequent coats. Material should be "laid on" instead of "brushed out".
With suitable spray equipment, FLAMEMASTIC may be applied in one operation. However, with vertical or overhead cables it is recommended to first apply a very thin "fog coat", allowing it to dry for approx. 20 minutes before applying the final coat to the recommended thickness.
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Spray equipment:
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FLAMEMASTIC may be applied with a great variety of spray equipment designed for application of high viscosity materials. Good results have been obtained with the following:
Airless spray
Graco
WiWa
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Air intake pressure:
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approx. 4 bar
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Pressure at gun:
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approx. 90 bar
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Spray gun orifice:
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0.9-1.3 mm
(preferably with a reversible tip)
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Air supply:
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Compressor capable of delivering 1000 litres/min.
5-6 bar
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Conventional spray equipment (with pressure pot)
Binks
De Vilbis Mastic
Wally
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Material pressure:
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4-5 bar
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Pressure at gun:
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4 bar
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Spray gun orifice:
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minimum 3 mm diameter
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Material hose:
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minimum 19 mm diameter
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Air supply:
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Compressor capable of delivering at least 800 litres/min.
6 bar
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PLEASE NOTE:
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Air supply, aire pressure, diameter of material hose as well as minimum orifice opening must be adhered to as recommended.
All filters within the equipment must be removed prior to operating with FLAMEMASTIC.
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