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surface cleanliness - salt contamination, amine blush

Surface contamination from salts such as chlorides, sulphates and nitrates have been shown to lead to blistering of organic coatings, particularly in immersion conditions.

It is not sufficient, however to only measure the cleanliness of the substrate. In a multi-layer coating process, it is necessary to monitor and record the cleanliness of each layer prior to applying the next coating.

When using amine cured epoxy coatings, for example, in low ambient temperatures or in high humidity, a surface oiliness or exudate may cause inter-coating adhesion failure.

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Elcometer 139 ABC Amine Blush Check

The first site test for determining the presence of Amines on the surface of a coating. If present it can lead to inter-coat adhesion failure. This simple test takes seconds to undertake and gives instant results.

Elcometer 130 SCM400 Salt Contamination Meter

This very easy to use salt contamination meter measures the level of salts on the surface. Soluble salts on a surface are absorbed into a special filter paper soaked with distilled water. The Elcometer 130 measures the conductivity of the wet paper, calculates the salt level and displays it in ug/cm 2 .

Elcometer 138 Bresle Kit & Elcometer 135 Bresle Patches

Well known in the protective coatings field, the Bresle Patch is one of the most popular tests for soluable salts. A patch is adhered to the substrate and the soluable salts are dissolved into distilled water using a rinsing motion caused by a syringe. A conductivity meter is then used to calculate the slat level.

Elcometer 134 CSN - Chlorides, Sulphates & Nitrates

Designed to accurately measure surface chloride, sulphate and nitrate ions in minutes, the Elcometer 134 'CSN Salts' offers the user the ability of trouble-free testing in the field. Supplied in an ABS plastic carrying case for easy portability around the site, each field kit is supplied with full instructions attached to the inside lid.

Elcometer 134A Chloride Ion Test Kit for Abrasives

Chlorides deposited on a surface by contaminated abrasive during blasting can cause a coating to fail prematurely. Contamination can build up, particularly if the blast media is recycled several times. The Elcometer 134A is an easy to use, accurate field test which determines if your abrasive is contaminated with chlorides and thus prevent costly surface-related failures.

Elcometer 134S Chloride Detection Kit for Blast Cleaned Surfaces

Chloride salts left on the surface before the first coat is applied can result in the coating system being forced off the surface by corrosion or blistering before the full life of the coating has been reached. Salts are extracted using a rubber tube and the level of chloride on the surface is identified using a simple glass tube which identifies the concentration level.

Elcometer 134W Chloride Ion Test Kit for Water/Liquids

Coatings can fail due to chlorides being deposited on a surface by contaminated water during pressure washing, UHP water jetting or wet abrasive blasting. The Elcometer 134W is an easy to use, accurate, field based test which determines if your wash water is contaminated with chlorides and thus prevent costly surface coating failures.

Elcometer 128 Pictorial Surface Standards

Elcometer's range of Surface Standards, covers most of those required for surface cleanliness. They include: The swedish standard, the british standard and the sspc standards vis 1 and vis 3.

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