Worker spreading a liquid coat with a squeegee followed by a roller, the same way polyurea primer is spread on concrete

Polyurea Primer: Preparing Concrete Before Spraying

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A polyurea primer is the thin coat that goes between the concrete and the polyurea membrane. It seals the pores, binds loose dust and gives the membrane a firm grip. In fact, many lining problems start below the membrane, not in it. This guide shows how to check the concrete, how to choose a primer and how to prepare the ... Read More
Smooth coated car park floor with a direction arrow, the kind of finish a polyurea car park deck coating system aims for

Polyurea Car Park Deck Coating in Egypt: A System Guide

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A polyurea car park deck coating has to keep water out and carry cars at the same time. That is a harder job than a normal roof. In fact, wheels turn, brake and climb ramps, while rain and sun work on the deck from above. This guide explains the two routes Krypton Chemical documents for car parks. It also covers ... Read More
Polyurea certifications rest on tests such as adhesion and thickness: pull-off tester and caliper on a grey polyurea membrane

Polyurea Certifications Explained: CE, ETA, BBA, WRAS and Applus

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Polyurea certifications often appear in tenders in Egypt as a short list of logos. However, each mark covers one product, one use and a set of conditions. This guide explains what CE, ETA, BBA, WRAS and Applus really cover. It also shows what they leave out and how to check each one. As a worked example, we use Polyurea Rayston ... Read More
Expansion joint waterproofing polyurea: a raised strip over an expansion joint on a concrete deck coated in grey

Expansion Joint Waterproofing with Polyurea: Methods and Steps

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Expansion joint waterproofing polyurea work deals with the one place where a concrete structure is meant to move. A spray membrane bonds well to flat concrete. However, a joint opens and closes with heat, load and settlement. So it needs its own product and its own detail. This guide explains the options Krypton Chemical documents and the steps on site. ... Read More