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  2. Concrete sealer - Wikipedia

    en.wikipedia.org/wiki/Concrete_sealer

    Concrete sealers are applied to concrete to protect it from surface damage, corrosion, and staining. They either block the pores in the concrete to reduce absorption of water and salts or form an impermeable layer which prevents such materials from passing.

  3. Basement waterproofing - Wikipedia

    en.wikipedia.org/wiki/Basement_waterproofing

    In poured concrete foundations, cracks and pipe penetrations are the most common entry points for seepage. These openings can be sealed from the interior. Epoxies , which are strong adhesives, or urethanes can be pressure injected into the openings, thus penetrating the foundation through to the exterior and cutting off the path of the seepage.

  4. Waterstop - Wikipedia

    en.wikipedia.org/wiki/Waterstop

    Metal waterstops are delivered in coils of up to 50 m with a typical dimension of 1.0 to 1.5 mm thickness and width of 250 to 300 mm. Splices can be welded, overlapped or joined with a sealant. A subcategory of metal waterstops is coated with polymeric and/or hydrophilic materials in order to provide a higher bond to the concrete and form a ...

  5. Sealant - Wikipedia

    en.wikipedia.org/wiki/Sealant

    Sealant is a substance used to block the passage of fluids through openings in materials, [1] a type of mechanical seal. In building construction sealant is sometimes synonymous with caulk (especially if acrylic latex or polyurethane based) [ 2 ] and also serve the purposes of blocking dust, sound and heat transmission.

  6. Concrete - Wikipedia

    en.wikipedia.org/wiki/Concrete

    Concrete is a composite material composed of aggregate bonded together with a fluid cement that cures to a solid over time. Concrete is the second-most-used substance in the world after water, [1] and is the most widely used building material. [2] Its usage worldwide, ton for ton, is twice that of steel, wood, plastics, and aluminium combined. [3]

  7. RTV silicone - Wikipedia

    en.wikipedia.org/wiki/RTV_silicone

    Silicone components (A+B) must be mixed accurately by weight (scale required) or else they do not work. Tin-catalyst silicone shrinks somewhat and does not have a long shelf life. Acetoxysilane-based RTV releases acetic acid during the curing process. The locally released acetic acid can attack solder joints, detaching solder from copper wire.

  8. Gov. Kathy Hochul to discuss 'path forward' after NYC Mayor ...

    www.aol.com/news/four-eric-adams-deputies-resign...

    Four of New York City Mayor Eric Adams’ deputies have resigned amid the fallout over the Justice Department’s move to dismiss corruption charges against Adams last week.

  9. Butyl rubber - Wikipedia

    en.wikipedia.org/wiki/Butyl_rubber

    Butyl rubber sealant is used for damp proofing, rubber roof repair and for maintenance of roof membranes (especially around the edges). It is important [ citation needed ] to have the roof membrane fixed, as a lot of fixtures (e.g., air conditioner vents, plumbing, and other pipes) can considerably loosen it.

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