Carboline Carboguard 1340


Carboline Carboguard 1340 is a penetrating primer and sealer for use on concrete substrates and Carboline Pyrocrete Fireproofing products.

  • Exceptional wetting characteristics
  • Low stress, highly flexible film
  • Very high solids
  • Low odour
  • User-friendly brush & roller application
  • VOC compliant to current AIM regulations
  • Gloss finish

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£343.80 Tax incl.


Carboline Carboguard 1340 is a penetrating primer/sealer for use on concrete substrates and Carboline Pyrocrete Fireproofing products. It performs extremely well in sealing cementitious surfaces and is designed to receive a variety of different generic types of finish coats. Some recommended uses of 1340 include the use as a curing compound or form release agent. When applied to “green” concrete it will retard the escape of moisture during the cure period. It is also excellent for use as a form release coating on plywood or steel forms.

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Features & Benefits

  • Exceptional wetting characteristics
  • Low stress, highly flexible film
  • Very high solids
  • Low odour
  • User-friendly brush & roller application
  • VOC compliant to current AIM regulations
  • Gloss finish

Product Specification

Technical Data
Carboline Carboguard 1340
Volume Solids: 98% +/- 2%
Dry Temperature Resistance: Continuous: 175°F (79°C)
Non-Continuous: 200°F (93°C)
Theoretrical Coverage Rate: 1572 ft²/gal at 1.0 mils (38.6 m²/l at 25 microns)
786 ft²/gal at 2.0 mils (19.3 m²/l at 50 microns)
Allow for loss in mixing and application.
Dry Film Thickness: Product can be applied up to 4.0 mils (100 microns) for sealing rough surfaces or shot-blasted concrete. When used as a curing and/or form release agent, it may be applied up to 10.0 mils (250 microns) wet.
Limitations: Epoxies lose gloss, discolor and eventually chalk in sunlight exposure.
Do not use for immersion service.
Topcoats: May be coated with Acrylics, Epoxies, or Polyurethanes depending on exposure and need.
Primer: Self-priming. May be applied over most generic types of coatings.
VOC Values: As Supplied : 0.2 lbs/gal (24g/l) per EPA Method 24
Thinner 76 : 25 oz/gal = 1.3 lbs/gal (156 g/l)
Shelf Life: Part A & B: Min. 36 months at 75°F (24°C)
Storage Temperature & Humidity: 40° -110°F (4°-43°C), 0-90% Relative Humidity
Flash Point: Part A: >205°F (96°C)
Part B: >205°F (96°C)

Drying Times

Curing Schedule
Surface Temp Dry to Handle or Topcoat Final Cure General Maximum Recoat Time w/ Solvent Borne Maximum Recoat Time w/ Water Borne
50°F (10°C) 24 Hours 9 Days 30 Days 14 Days
75°F (24°C) 12 Hours 6 Days 30 Days 14 Days
90°F (32°C) 6 Hours 3 Days 15 Days 7 Days

  • These times are based on 50% relative humidity and 1.0-2.0 mil (25-50 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 discoloration 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.
  • If the maximum recoat time is exceeded, the surface must be abraded by sweep blasting before the application of additional coats.

Curing Schedule
Surface Temp Dry to Handle Final Cure
75°F (24°C) 5 Hours 6 Days

  • This is the curing schedule for Curing/Form Release Agent.
  • These times are based on 50% relative humidty and 5-10 mils (125-250 microns) dry film thickness.

Surface Preparation


  • Prepare substrate accordingly to SSPC NACE No.6 / SSPC-SP13(TABLE 1 Acceptance Criteria).
  • Compatibility with other coatings, surfacers and polyurethane membranes eliminates need for form release oils or curing oils. Note that porous and irregular substrates like concrete and fireproofing will affect coverage rates.

As a Curing Membrane

  • While 1340 may be applied to green concrete, generally additional coats or other coatings should not be applied until the concrete has cured 28 days at 75°F (24°C) and 50% relative humidity or equivalent.
  • Application of a test patch is recommended prior to topcoating to confirm proper adhesion.

Concrete or CMU

  • 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.

Previously Painted Surfaces

  • Lightly sand or abrade to roughen and degloss the surface.
  • Existing paint must attain a minimum 3B rating in accordance with ASTM D3359 “X-Scribe” adhesion test.

Carboline Fireproofing Products

  • Carboguard 1340 is an approved sealer/topcoat for Carboline's Pyrocrete fireproofing products.
  • It is also used as a component of the topcoat system for some of Carboline's intumescent fireproofing products.
  • Contact Rawlins on Tech - 0113 2455450 (option 2) or [email protected] Sales - 0113 2455450 or [email protected] for specific applications and requirements.

Application Methods

Product Information
Mixing: Power mix separately, then combine and power mix. DO NOT MIX PARTIAL KITS
Ratio: 1:1 Ratio (A to B)
Thinning: Normally not required but may be thinned up to 25 oz/gal (20%) with Thinner #76. Use of thinners other than those supplied or recommended by Carboline may adversely affect product performance and void product warranty, whether expressed or implied.
Pot Life: 45 minutes at 75°F (24°C)
Pot life will be less at higher temperatures.
Spray Application (General): Contact Rawlins on Tech - 0113 2455450 (option 2) or [email protected] Sales - 0113 2455450 or [email protected] for information on spray equipment and technique.
Brush & Roller (General): Avoid excessive re-brushing or re-rolling. Apply only enough material to wet the surface uniformly. Any puddles formed must be brushed out.
Brush: Use a medium bristle brush
Roller: Use a medium or long-nap synthetic roller cover with phenolic core

Application Conditions

Product Conditions
Condition Material Surface Ambient Humidity
Minimum 60°F (16°C) 50°F (10°C) 50°F (10°C) 0%
Maximum 90°F (38°C) 130°F (60°C) 100°F (38°C) 90%

  • 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 & Safety

Clean Up

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


  • Read and follow all caution statements on this product data sheet and on the MSDS for this product.
  • Employ normal workmanlike safety precautions.


  • When used in enclosed areas and product is thinned, 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 insure all personnel are below guidelines.


  • This product exotherms at the end of its pot life
  • Any unused quantities will become extremely hot.
  • The material begins to thicken at the end of it's pot life, which is an indication of exotherm. Immediately spread out on an appropriate surface or add sand or other suitable heat sink to the unused material to reduce the severity of exotherm.
  • Take appropriate precautions against breathing fumes. This product when thinned contains flammable solvents.
  • Keep away from sparks and open flames.
  • All electrical equipment and installations should be made and grounded in accordance with required local standards.
  • 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 safety data sheet in the attachments section above for further details.
Product Details

Data sheet

For Use By
General Use
For Use On
Application Method
Brush, Roller, Spray
Single, Two or Three Pack
Pack Size
UN Number
Base Type
Exterior / Interior Use
Exterior Use

Customer agrees that before placing an Order, Customer has read and understood the most up to date Product Data Sheet for the Product. Where we have access to the Product Data Sheet from the manufacturer, we will either provide a copy on request, or include a link to the Product Data Sheet available on the manufacturer’s website. Customer further agrees that we have no liability for any errors or omissions contained within the Product Data Sheets. For more information, please see our Terms & Conditions of Sale.

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