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500 Kilogram/Kilograms (Min. Order)
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Quick Details
Main Raw Material:
Sealing of expansion joints
Packaging & Delivery
Packaging Details
1 Kg tin
Delivery Time
3 weeks from the receipt of PO


Two part polysulphide sealant. Applied to hoints between 5 to 50mm wide. It confirming to international standard BS: 4254:1983

FLEXISEAL is a two part Polysulphide Sealant (a “base” and “curing agent”). The mixed paste cures into a firm flexible grey colored rubbery mass. FLEXISEAL may be applied to joints between 5 to 50 mm wide. The product, conforming to international standards like BS: 4254: 1983. DIN 18540, etc.


  1. FLEXISEAL-Ex is a Gun Grade Sealant for expansion and contraction joints (For both internal and external and vertical, slanting or horizontal nature)
  2. FLEXISEAL-G is a General Purpose Gun Grade Sealant.

(For sealing door or window frames and plaster, glass and frame, AC roof sealing, crack repairs, tiling, paving-slabs etc.,)


  • Sealing expansion joints where large movement is anticipated in concrete construction
  • Joints between diverse construction materials like glass, aluminium, steel, cladding, glazing, tiling, tanks internal and water retaining structures.
  • Sealing of expansion joints in surface transportation area like airports, bridges, etc..


Consistency: Past (Both base and curing agent)

Pot life (after mixing): 2 hrs

Sepcific gravity: 1.6 Kg/litre

Setting time: 8 hours at 35 deg cel.; 18 hrs at 25deg. cel.

KEY CHARACTERISTICS - Superior hoint movement accommodation with strong adhesion to most building material

Application Guidelines

  • Priming: Primer should be brushed on the sides of the joint and to be dried before application of sealant.
  • Back up material must be used to prevent the sealant sticking to the back of the joint and to provide the ideal width to depth ratio of 2:1
  • Masking tape may be used to improve the neatness of the finished seal by protecting the front edges of the joint and to prevent accidental spreading of sealant on to the face of the joint.
  • Two parts (Base and Curing agent) have to be mixed thoroughly to import maximum properties to the final product. The product cures into a semi-stiff rubbery mass sealing the joint against external environment.
  • Use a slow speed electric mixer with suitable paddles. Smaller packs can be mixed by hand using a palette knife, but power mixing is advised always. Failure of the sealant will often occur if it is not completely and thoroughly mixed.
  • To obtain a smooth surface, the sealant has to be tooled by drawing a flat tool, over its surface. This breaks up air bubbles by compressing the sealant, so that no voids remain in the joint, thus promoting proper adhesion to the joint sides. After sealing, the tools and equipment must be cleaned with kerosene.
  • If the gun is used, the sealant should be filled into cartridge and extruded firmly into the joint by maintaining even pressure for tidy and even application.


1 Kg of FLEXISEAL will cover a 12.5 m length joint of 10 mm width by 5 mm depth. 

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