• GULFSEAL your waterproofing partner
    waterproofing systems
  • Today
    70 year of knowledge
  • To More Than 30 Country
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About us

Gulf Seal is a Saudi manufacturer of high-quality modified bitumen waterproofing membranes, based in Riyadh, Saudi Arabia. With a portfolio of over 100 products and formulations, Gulf Seal operates a state-of-the-art manufacturing facility equipped with advanced technology and compliant with European CE standards. Millions of square meters of its membranes have been successfully installed across local and regional projects. Today, Gulf Seal is proudly part of Sika Saudi Arabia, strengthening its commitment to delivering reliable, world-class waterproofing solutions.

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PRODUCTION DESCRIPTION

COMPOSITION

All GS bitumen membranes with its APP polymer modification combined with the high tensile strength of polyester provides excellent resistance to tearing, permanent deformation and also has excellent heat ageing characteristics.

ADVANTAGES

APP plastomeric polymer modified bitumen provides excellent characteristics

  • High resistance to ULTRA VIOLET light.
  • Good elongation
  • High resistance to chemical and atmospheric elements
  • High softening point
  • Good ageing
  • Excellent torch-on Characteristics
  • Compatible with all normal roofing components
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APPLICATION

Take care: excessive heat will damage the polyester! NOTE: It is important to make sure that the thermo fusible film is totally melted

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FIRST STEP

All decks or substrates receiving waterproofing membranes should be dry, smooth and free from dust, grease, sharp projections or cracks. Angles and corners should be smooth

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SECOND STEP

The GS PRIMER must be applied with a brush, roller or mop.The primer should be dry before application of the membrane

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THIRD STEP

Unroll the membrane in order to align the roll with minimum of 8cm side overlap and 12cm end overlap

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FOURTH STEP

Re-roll the membrane and then unroll again at the same time uniformly heating the underside by torching. Take care to ensure that a small pool of bitumen is formed. The lap should show a narrow bead of bitumen melts in from of the roll to ensure a perfect bond. The lap should show a narrow strain of bitumen on completion