Enviroline F Fiber filled for reinforcement. Enviroline® F is a polycyclamine cured epoxy novolac lining reinforced with both flake and fibre to. Enviroline FLT is a low temperature cure version of Enviroline F specifically designed to cure at temperatures down to -7°C. Enviroline® F is a solvent free, two component polycyclamine cured novolac epoxy lining system. Enviroline F • Resists continuous immersion in.

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A Handy Checklist for a Successful Lining. Notes on Lining Tanks.

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A Handy Checklist for a Successful Lining The first step of a successful lining application is to ensure the proper coating is selected, one that will withstand the anticipated service. Consult Avilion to verify the suitability of any proposed coating. Be aware of any other pertinent envirolinee, such as abrasion or temperature. All tanks, prior to abrasive cleaning, should be tested for the presence of hidden contamination, especially chlorides.

If necessary, additional enviropine steps will be needed to eliminate this condition. This step lessens the risk of re-contaminating the primed surfaces when proceeding with the final blast work.

An inspection blast conforming to SP-6 Commercial Blast is usually sufficient and also serves to help with an assessment of metal loss and pitting. Old tanks, upon coming out of service for refurbishment, present a wide variety of steel substrate conditions.


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Choice of a lining system will often depend on the degree of corrosion found on the floor. For example, a two-coat thin film system typically mils would be a poor choice for severely pitted plates.

Extensive pitting, especially deep and convoluted pitting cannot be easily coated by such systems. A Heavy-Duty system applied at A holding primer should be applied to the blasted steel within an 8 envirolne period to protect it from re-rusting. A chemical resistant epoxy primer like Enviroline 58HS applied at 0. Many lining failures can be directly attributed to primer applications that have filled in the blast profile.

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This system can be used in lieu of more labor intensive and costly hand lay-up and chopped fiberglass systems see our site Reinforced Tank Linings. In establishing the Dry Film Thickness for any lining system, be aware of the need to rely on a statistical average, as DFT varies often widely from place to place in a tank.

In establishing the cure of any lining system, a rub with a MEK wetted clean, white rag works well as an indicator of solvent resistance. Hardness gauges can be used as a more accurate and quantitative indication of cure, but, as it pinpricks the film, this must be considered a destructive test procedure.


Holiday testing should be performed using a maximum of volts per mil of applied, fully cured coating.

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Since most linings are tested as soon as practical, much sooner than at full cure, and since significant under-specified DFT readings are allowable within reason and providing the specified average is met 70 volts per mil of coating has been found to be thorough enough for adequate testing, while not causing harm to a freshly applied coating.

Riveted tanks present a special set of sealing and lining difficulties. This should provide information about the structural stability, shell plate movement, gaps in seam overlaps, missing envirolije, etc.

Some tanks may not be suitable for integrity restoration using these linings. Where possible, rivet seams should be sealed from the interior of the tank.

Adequate cleaning must be employed to avoid previous tank contents from seeping enviroljne of rivets, seams, butt straps, etc. When sealing riveted exteriors, it is most often necessary to lower the content level in the tank to avoid problems with seep spots.

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