MAK SEALING COMPOUND [ Gr. A & Gr. B ] [ISI MARKED] A Joint Sealing Compound must display good adhesion towards concrete and have the ability to withstand extension without cracking. It must also have a low susceptibility to flow during hot weather conditions. It should be durable and plastic, and at the same time offer resistance to ingress of solid foreign matter.
The Joint Sealing Compound is heated to temperature which will permit easy pouring into the expansion joint above the joint filler. This temperature should be well below that at which the Joint Sealing Compound undergoes decomposition and should not exceed temperature as specified against each grade of Sealing Compounds.
MAK SEALING COMPOUND : GRADE A IS 1834/1984. It is ideal hot pour Sealing Compound specially rubberised to withstand cracking. Besides having good adhesion to concrete it is also durable and is not affected by temperature changes. It has a working temperature of 1750 C – 1850 C and a density of 1020 kg. per cubic metre. MAK SEALING COMPOUND : GRADE B - IS: 1834/1984 It is unaffected by petrol spillage especially jet fuel. It is therefore recommended for use in garages, filling stations etc., where there is spillage of petrol, oil and grease. It has a working temperature of 1550 C – 1650 C and a density of 1200 kg per cubic metre. On application of this product Mak Jet Primer is to be applied by brush or spray to ensure for proper adhesion. Care should be taken to see that Primer has sufficiently dried prior to pouring of Mak Sealing compound into the Joint.
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