Carboline Carboguard 891 is a high solids, high-build potable water coating widely used for lining interior steel and concrete tanks, valves and pipes. Formulated for application at conventional builds (100 - 250 microns per coat) as well as high builds (250 microns per coat).

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• Features and Benefits
• Product Specification
• Drying Times
• Surface Preparation
• Application Methods
• Application Conditions
• Health and Safety

Features and Benefits

• Excellent film build and edge protection
• VOC compliant to current AIM regulations
• ANSI/NSF Std. 61 for potable water tanks. (Valid if manufactured at a certified location)
• AWWA D102 Inside System 1 and 2.
• Complies with EU 1935/2004 criteria for food contact.

Product Specification

Drying Times

• These times are based on a 100-150 micron dry film thickness.
• Higher film thickness, insufficient ventilation or cooler temperatures will require longer cure times and could result in solvent entrapment and premature failure.
• Excessive humidity or condensation on the surface during curing can interfere with the cure, can cause discolouration and may result in a surface haze. Any haze or blush must be removed by water washing before recoating.
• If the maximum recoat time is exceeded, the surface must be abraded by sweep blasting or sanding prior to the application of additional coats.
• For force curing, contact Rawlins on Tech - 0113 2455450 (option 2) or [email protected] Sales - 0113 2455450 or [email protected] for specific requirements.
• Final cure temperatures below 16°C are not recommended for tank linings.

Surface Preparation

General

• Surfaces must be clean and dry.
• Employ adequate methods to remove dirt, dust, oil, and all other contaminants that could interfere with adhesion of the coating.

Steel

• Immersion: ISO 8501-1 Sa 2½
• Non-Immersion: ISO 8501-1 Sa 2
• Surface Profile: 40-75 microns

Concrete or CMU

• Immersion: Concrete must be cured 28 days at 24°C and 50% relative humidity or equivalent.
• Prepare surfaces in accordance with ASTM D4258 Surface Cleaning of Concrete and ASTM D4259 Abrading Concrete.
• Voids in concrete may require surfacing.

Application Methods

Application Conditions

• Industry standards are for substrate temperatures to be 3°C above the dew point.
• Condensation due to substrate temperatures below the dew point can interfere with proper adhesion to the substrate.
• Special application techniques may be required above or below normal application conditions.

Health and Safety

Clean Up

• Use Thinner 2 or Acetone
• In case of spillage, absorb and dispose of in accordance with local applicable regulations.

Safety

• Read and follow all caution statements on this product data sheet and on the SDS for this product.
• Employ normal workmanlike safety precautions.
• Hypersensitive persons should wear protective clothing, gloves and use protective cream on face, hands, and all exposed areas.

Ventilation

• When used as a tank lining or in enclosed areas, thorough air circulation must be used during and after application until the coating is cured.
• The ventilation system should be capable of preventing the solvent vapor concentration from reaching the lower explosion limit for the solvents used.

Caution

• This product contains flammable solvents.
• Keep away from sparks and open flames.
• All electrical equipment and installations should be made and grounded in accordance with applicable regulations
• In areas where explosion hazards exist, workmen should be required to use nonferrous tools and wear conductive and non-sparking shoes.

• Refer to the product and safety data sheet in the attachments section above for further details.