GUN GRADE TWO PART POLYSULPHIDE SEALANT
Polysulphide sealant is design to seal joints subject to movement, where a tough flexible watertight seal is required. FAIRSEAL has Excellent weathering characteristics with resistance to rain, snow, heat & ultraviolet light.
FAIRSEAL is a two-part joint sealant based on liquid polysulphide polymer. It is based on liquid polysulphide polymer. When mixed and cured, the sealant exhibits excellent adhesion to most surfaces including concrete, glass aluminum & stainless steel. FAIRSEAL is suitable for sealing vertical joints only. FAIRSEAL has superior joint movement accommodation with strong adhesion to most building materials. It is chemically resistant to water, oils, solvents, etc.
FAIRSEAL may be applied to joints between 5 to 50 mm width / depth. Minimum joint depths are 5mm for metal, glass, and another non-porous surface. 10mm for all porous surfaces like brick and concrete. 20 mm for trafficked joints and those subject to hydrostatic pressure.
SALIENT FEATURES OF POLYSULPHIDE SEALANT,
• Quick curing with low shrinkage
• Accommodates continuous and pronounced cyclic movement
• High resistance to ageing influences, physical damage and climatic extremes
• Resistance to petrol, diesel, jet fuel and most other common solvents & also unaffected by mild acids and alkalis.
SURFACE PREPARATION: Before the application of the sealant, all joint surfaces should be thoroughly cleaned and dried, and primed with FAIRSEAL PRIMER. Loose particles, dirt, dust, protective liquor, oil and grease should be remove by vigorous brush with a wire brush and by means of suitable cleaners e.g. KEROSENE. After the primer is applied, it has to be relatively dried before sealant is applied.
MIXING: FAIRSEAL sealant supplied as base and hardener (curing agent) in separate packing, ready for mixing. In order to mix both the compounds thoroughly, it is preferable to use a slow speed electric mixer with suitable blades or paddles with speed < 300 RPM. Make certain that mixing till a uniform color is obtained. Failure of sealant when it is not completely and thoroughly mixed.
FAIRSEAL is used for sealing expansion joints between structures in building construction like infill panels, metal finishes and in civil engineering structures like basements, buildings, walls, and brickwork joints, etc. FAIRSEAL is suitable for sealing vertical joints only. It is quick curing with low shrinkage. It is unaffected by mild acids, alkalis, & resistance to petrol, diesel, jet fuel, etc.
FINISHING: To obtain smooth surface, the sealant has to be tooled by drawing a flat tool, like a stainless steel spatula over its surface.
ESTIMATION OF QUANTITY
Formula: Weight in Kg = (1.6 X W X D X L)/1000
Where W & D are in mm and L is in metre,
W (Width of joint) = 10 mm
D (Depth of joint) = 10 mm
L (Length of joint) = 12.5 mtr
Weight in Kg = (1.6 X 10 X 10 X 12.5) / 1000 =2kg of sealant
FAIRSEAL is available in big packing of (4.6kg base + 0.4kg hardener) & small packing of (0.920kg base + 0.08kg hardener).
FAIRSEAL is highly inflammable & it must be stored away from heat & kept in dry condition.