Carboline Plasite 7122 VAR is a two-component, cross linked epoxy-phenolic cured with a polyamine curing agent. Formulated with particular attention to wide chemical resistance and ease of handling. Plasite 7122 VAR, is an abrasion resistant tank lining and industrial maintenance coating.

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

Features and Benefits

• Excellent overall chemical resistance to a wide range of acids, alkalies and solvents
• Superior abrasion resistance and good flexibility
• Dry heat resistance up to 149°C (continuous) and 177°C (non-continuous)
• Cure for service in 7 days (at 21°C)
• Application from 10°C (3°C above dew point)
• Surface will normally be tack-free in 4-6 hours at 21°C

Product Specification

Chemical Resistance: Specific information regarding the chemical resistance can be found by contacting Rawlins on Tech - 0113 2455450 (option 2) or [email protected]

Drying Times

• Surface will normally be tack-free in 4-6 hours at 21°C (70°F)

Inspection

• Degree of surface preparation shall conform to appropriate specification as outlined in surface preparation section. Film thickness of each coat and total dry film thickness of coating system shall be determined with a non-destructive magnetic gauge, properly calibrated

Ambient Cure

• Normally, polymerization and curing will take place in 7 days at 21°C/70°F
• This coating should not be applied when air temperature or temperature of surface to be coated is below 10°C/50°F
• Within 24 hours after coating is applied, a minimum substrate temperature of 70°F/21°C is required for proper polymerization
• Carboline Plasite 7122 VAR should be force cured for all taste sensitive immersion services

Force Cure

• Force curing at elevated temperatures does increase resistance to certain exposures; therefore, when exposure is severe, force curing is recommended to obtain maximum resistance
• Listed above are a few curing schedules that may be used for time and work planning
• Prior to raising the metal to the force curing temperature, it is necessary that an air-dry time of 2-5 hours at temperatures from 21-37°C/70-100°F be allowed. After the air-dry period has elapsed, the temperature should be raised by approximately 18°C/30°F each 30 minutes until the desired force curing temperatures are reached
• Final cure may be checked by exposing coated surface to MIBK for 10 minutes. If no dissolving and only minor softening of film occurs, the curing can be considered complete. The film should reharden after exposure if cured
• Carboline Plasite 7122 VAR should be force cured for all taste sensitive immersion services at any of the following substrate temperatures: 12 hours at 66°C (150°F, 6 hours at 79°C (175°F), or 4 hours at 93°C (200°F)

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: SSPC-SP10
• Non-Immersion: SSPC-SP6
• Surface Profile: 50-75 micron

Galvanised Steel

• Consult Rawlins on Tech - 0113 2455450 (option 2) or [email protected]

Concrete or CMU

• Contact Rawlins on Tech - 0113 2455450 (option 2) or [email protected] for use over concrete surfaces

Application Methods

Application Conditions

• Substrate temperature should be 3°C/5°F above the dew point

Health and Safety

Clean Up

• Use Carboline Thinner 71, Thinner 2 or Acetone
• In case of spillage, absorb and dispose of in accordance with local applicable regulations

Safety

• Observe the precautionary notices on the container label, and read the Material Safety Data Sheet before use
• Employ normal workmanlike safety precautions including personnel protection equipment

Ventilation

• When used 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

Caution

• Fire and explosion hazards: This product contains less than 1% volatile components, however, vapours are heavier than air and can travel long distances, ignite and flash back
• Eliminate all Ignitions sources. Keep away from sparks and open flames
• All electrical equipment and installations should be made and grounded in accordance with applicable local regulations
• In areas where explosion hazards exist, workers should be required to use non-ferrous tools and wear conductive and non-sparking shoes

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