FAIRSEAL P is a two part, pourable, self levelling, polysulphide based joint sealing compound consisting of base compound containing a liquid polysulphide polymer and second part being an accelerator containing a curing agent. After mixing, the compound cures to form a tough, rubber like material with excellent flexibility and outstanding resistance to weathering water, salts, oils, mild alkalis etc.
FAIRSEAL P is suitable for sealing horizontal joints due to its pouring consistency. It has excellent adhesion to most surfaces including concrete, wood, glass, aluminum and stainless steel. For all porous surfaces like concrete wood, FAIRSEAL PRIMER is necessary.
Excellent weathering characteristics with resistance to rain, snow, heat & ultraviolet light
It gets cured quickly with low shrinkage
Accommodates continuous and pronounced cyclic movement
Excellent adhesion to most common substrates
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 alkalies
Forms a tough elastic rubber-like seal
Pourable grade sealant for horizontal joints
Long service life
FAIRSEAL P may be applied to joints between 5 and 50mm. Minimum 5mm. depth is recommended for metals, glass and other smooth surfaces while minimum 10mm depth is recommended for concrete and brickwork surfaces. The use of a greater depth is recommended where resistance to external pressure is required, e.g. joints in floors and hydraulic structures. Ideally joints subject to regular movement should be designed with a width/depth ratio of 2:1.APPLICATION PROCEDURE
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 removed by vigorous brushing 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. Deep joints should be back filled with a non retting backup material to which the sealant does not adhere eg. Closed cell polyurethane foam, which should be tampered into the joint to the required depth.
FAIRSEAL P sealant is supplied in a pack with 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 a speed less than 300 RPM. Ensure thorough mixing till a uniform color is obtained. Failure of the sealant will often occur if it is not completely and thoroughly mixed. After mixing FAIRSEAL P may be poured directly into horizontal joints or loaded into the gun for application to horizontal joints less than 15mm wide.
Tooling & Finishing : To obtain a smooth surface, the sealant has to be tooled by drawing a flat tool, like a stainless steel spatula, over its surface. After sealing, the tools and equipments must be cleaned with KEROSENE.
ESTIMATION OF QUANTITY
To estimate quantities of sealant required, the formula given below can be used to calculate the number of (1 Kg or 5 Kg) tins needed. To calculate the weight (in Kg.) of sealant required for a joint of particular length (in meters), the following formula can be used.
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 = 2 kg of sealant
1 Litre of FAIRSEAL Primer would cover 6 to 7 m² of joint area or about 1 litre of FAIRSEAL Primer would be required for 30 Kg of FAIRSEAL sealant.
FAIRSEAL P is available in big packing of (4.600 kg base + 0.400 kg hardener) and small packing of (0.920 kg base + 0.080 kg hardener).