PES-Chem 501 CRSG

PES-CHEM 501 CRSG is a high build solvent-free epoxy coating designed for the long-term protection of steel and concrete structures against corrosion and chemical attack.

Apply to mechanical, hydro-blasted or abrasive blasted cleaned surfaces
Cures at temperatures as low as 41°F
Apply to metallic surfaces suffering from condensation/dampness
Ideal for protection against corrosion and low concentration chemical immersion

Typical Applications

Cold water lines	Pipework	Internal & external tank surfaces
Structural steel	Sheet/bearing piles	Chemical intake areas
Process equipment	Sumps	Chemical containment and bund areas

Surface Preparation

Metallic Substrates – Abrasive blast cleaning

All oil and grease must be removed from the surface using an appropriate cleaner such as MEK.
All surfaces must be abrasive blasted to SSPC/ NACE 2 (ISO 8501/4 Standard SA2.5) minimum blast profile of 3 mils using an angular abrasive.
Once blast cleaned, the surface must be degreased and cleaned using MEK or similar type material.
All surfaces must be coated before gingering or oxidation occurs.

PLEASE NOTE: For salt contaminated surfaces the substrate must be pressure washed with clean water and checked for salt contamination, please refer to the surface preparation and pre-application guide for further information.

PES-CHEM 501 CRSG is used to protect metal cooling tower parts from corrosion, such as the cold and hot water basins, casing walls, and all other wetted parts. With its high adhesion qualities to properly cleaned metal along with high flexural strengths, PES-CHEM 501 CRSG will protect your assets for many years to come.

Existing Concrete

If the concrete surface is contaminated, pressure wash using clean water.
Once the concrete is dry, lightly abrasive blast or scarify taking care not to expose the aggregate.
Clean all dust and debris from the surface and prime with PES-CHEM 503 SPEP (low viscosity epoxy primer).
Apply PES-CHEM 503 SPEP at 6mils WFT, leave to cure for 3 hours (68°F) before overcoating.

PES-CHEM 501 CRSG a great product to protect key assets like Concrete Cooling Towers, at the same time protecting the environment by preventing chemicals from entering the ground water.

Application

Brush or roller applications:

Pour the mixed material into a paint kettle or paint tray (this will maximize the usable life).
Using a 2″ wide synthetic brush, stripe coat all edges, joints, corners and equipment with the mixed material. The stripe coat must be approximately 4″ wide, at 10mils wet film thickness.
Once the stripe coat has cured sufficiently and is capable of being overcoated, apply the 1^st coat of mixed product to all surfaces at 10mils wet film thickness.
Once the 1^st coat of material has cured sufficiently, approximately 4 hours at 68°F, apply a 2^nd coat of material to all surfaces at 10mils wet film thickness.

Coverage Rates

0.8 gal (3.4ltrs) of fully mixed product will give the following coverage rates –
146ft² at 10 mil – 13.6m² at 250 microns
4.2 gal (16ltrs) of fully mixed product will give the following coverage rates –
688ft² at 10 mil – 64m² at 250 microns

Please note that the coverage rates quoted are theoretical and do not take into consideration the profile or condition of the surface being repaired.

Cure Times

At 68°F the applied materials should be allowed to harden for the times indicated below before being subjected to the conditions indicated. These times will be extended at lower temperatures and reduced at higher temperatures:

Usable life	30 minutes
Minimum overcoating time	4 hours
Maximum overcoating time	36 hours
Water/sea water immersion	3 days
Chemical immersion	5 days

Pack Sizes

This product is available in the following pack sizes –
0.8 gallons (3.4ltr), 4.2 gallons (16ltr).

Color

Base component – Light Grey, Dark Grey, Red or Blue
Activator component – Amber

Over-coating times

Minimum – the material can be over-coated as soon as it is touch dry, approximately 4 hours at 68°F.
Maximum – the over-coating time should not exceed 36 hours.
Where the maximum over-coating time is exceeded, the material should be allowed to harden before being abraded or flash blasted to remove surface contamination.

Storage Life

5 years if unopened and store in normal dry conditions (60-86°F)

Health and Safety

Please ensure good practice is observed at all times. Protective gloves, goggles & a disposable coverall must be worn during the mixing and application of this product. Before mixing and applying the material, ensure you have read the fully detailed Safety Data Sheet.

PES-CHEM 501 CRSG