Carboline Carboguard 893 is a high solids corrosion resistant primer and intermediate. Used either as a primer or an intermediate coat over steel and inorganic zinc primers to give a protective eggshell finish. Can be top coated with a broad variety of high performance finish coats.

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

Features and Benefits

• Excellent corrosion protection
• Excellent film build and edge protection
• Can be top coated with a broad variety of high performance finish coats
• Used as a primer or an intermediate coating
• Good abrasion resistance
• Cures down to 4.4°C
• VOC compliant to current AIM regulations

Product Specification

Drying Times

• These times are based on a 100 microns 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.
• During high humidity conditions, it is recommended that the application be done while temperatures are increasing.
• Recoat intervals may vary from those listed above when using under intumescent fireproofing products.
• Consult Rawlins on Tech - 0113 2455450 (option 2) or [email protected] Sales - 0113 2455450 or [email protected] for recommended cure times before applying Carboline intumescent products.
• If the maximum recoat time is exceeded, the surface must be abraded by sweep blasting or sanding before the application of additional coats.
• When cured below 10°C a slight softening is typically observed as the temperature rises above 10°C and is considered normal.

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

• SSPC-SP6 with a 25-50 microns surface profile.
• When using under fireproofing products, defer to the primer surface preparation requirements in the product data sheet of the fireproofing product.

Galvanised Steel

• Prime with specific Carboline primers as recommended by Rawlins on Tech - 0113 2455450 (option 2) or [email protected] Sales - 0113 2455450 or [email protected]
• Refer to the specific primer’s product data sheet for substrate preparation requirements.
• When using under fireproofing products, defer to the primer surface preparation requirements in the product data sheet of the fireproofing product.

Concrete or CMU

• Concrete must be cured 28 days at 24°C and 50% relative humidity or equivalent.
• Prepare surfaces in accordance with ASTM D42582 Surface Cleaning of Concrete and ASTM D4259 Abrading Concrete.
• Voids in concrete may require surfacing.

Application Methods

Application Conditions

• This product simply requires the substrate temperature to be above the dew point
• Condensation due to substrate temperatures below the dew point can cause flash rusting on prepared steel and 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
• User should test and monitor exposure levels to ensure all personnel are below guidelines. If not sure or if not able to monitor levels, Use MSHA/NIOSH approved supplied air respirator.

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