Carboline 1340 Clear (Epoxy Primer)

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    carboline 1340

    Carboline 1340 Clear is Epoxy-polyamide. Part A and Part B mixed prior to application


    Penetrating clear primer-sealer for concrete surfaces prior to application of surfacers or polyurethane membranes. Carboline 1340 Clear meets ASTM C-309 Type 1 specification for moisture retention of concrete (check local Air Pollution Regulations before use). Excellent fast-drying material. Priming and sealing action provides excellent adhesion for surfacers and polyurethane membranes.


    As a curing compound or form release agent. For application on “green” concrete walls to retard the escape of moisture during cure period. Excellent for use as a form coating on plywood or steel forms. Application prior to surfacing assures tight adhesion between concrete and surfacers or membranes. Compatibility with other coatings, surfacers and polyurethane membranes eliminates need for form release oils or curing oils.

    NOT RECOMMENDED FOR : Immersion in strong acids or solvents or in corrosive areas without recommended topcoat.

    CHEMICAL RESISTANCE GUIDE : (with suitable topcoat)
    Exposure                                    Splash & Spillage
    Acids                                                    Good
    Alkalies                                                 Good
    Solvents-Aliphatic                              Good
    Salt Very                                               Good
    Water                                               Very Good
    Solvent-Aromatic and Koetone        Good
    Oil & Grease                                     Excellent

    TEMPERATURE RESISTANCE :      (Non-immersion)
    Continuous                                                   180℉( 82℃)
    Non-Continuous                                        220℉(104℃)
    May yellow at temperatures above         150℉( 66℃)

    FLEXIBILITY : Very Good

    WEATHERING : Good(chalks)


    SUBSTRATES : Apply over suitably prepared steel, concrete, wood, masonry or other as recommended.

    TOPCOAT REQUIRED : May be topcoated with catalyzed epoxies, phenolics, polyurethane membranes or other as recommended. Consult Carboline Technical Service for specific
    recommendations. An acceptable topcoat is Phenoline 305. Recommended Surfacers: Carboline 195 Surfacer and Carboline 295 WB Surfacer.

    COMPATIBILITY WITH OTHER COATINGS : Can be applied over most epoxies. For specific recommendations, contact Carboline Technical Service.

    By Volume
    Carboline 1340 Clear                                       28% ± 2%


    449 mil sq. ft (11.2 sq. m/ℓ at 25μ)
    224 sq. ft. at 2 mils (5.6 sq, m/ℓ at 50μ)

    *NOTE : Material losses during mixing and application will vary and must be taken into consideration when estimating job requirements.

    SHELF LIFE : Twenty-four months minimum when stored at 75℉(24℃)

    COLOR : Clear only

    GLOSS : High ; will chalk if exposed to sunlight.

    2’s                                   10’s
    Carboline 1340 Clear                    18 lbs.(8kg)                   86 lbs.(39kg)
    Carboline Thinner #15               9 lbs.(4 kg)                       45 lbs.(20kg)
    in 1’s                                  in 5’s
    FLASH POINT : (Setaflash)
    Carboline 1340 Clear Part A                        34℉( 1℃)
    Carboline 1340 Clear Part B                        48℉( 9℃)
    Carboline Thinner #15                                 74℉(23℃)

    SURFACE PREPARATION : Remove any oil grease from surface to be coated with clean rags soaked in Carboline Thinner #2 in accordance with SSPC-SP 1-82.
    Steel : For non-immersion service, abrasive blast to a Commercial Finish in accordance with SSPC-SP 6-85 to a degree of cleanliness in accordance with NACE #3 to obtain a 1-2 mil (25-50μ) blast profile.
    Concrete : Curing Compound-Walls Only : Apply immediately after forms have been stripped. Floors must have cured concrete. Carboline 1340 Clear cannot be used as a curing membrane for concrete floors. Form Release Compound: Use clean, dry, untreated Grade 1 plywood. Apply at least two coats, thin first coat 50%. Refresher coats may be applied as needed. Carboline 1340 Clear is not a substitute for blasting or acid etching for immersion service.

    NOTE : While Carboline 1340 Clear may be applied to green concrete walls, generally additional coats or other coatings should not be applied until the concrete has cured 28 days at 75℉(24℃) and 50% R.H. or equivalent.

    Primed surface – Remove fins and other protrusions by stoning, sanding or grinding. Remove form oils. incompatible curing agents and hardeners by abrasive blasting. For large holes or
    pits, use an epoxy surfacer for leveling and uniformity prior to application of Carboline 1340 Clear.

    Immersion Service – Abrasive blast to open all voids and obtain a surface similar to medium grit sandpaper (horizontal surfaces may be acid etched). Blow or vacuum off sand and dust. Non-immersion – Horizontal surfaces must be acid etched or abrasive blasted to remove laitance. For other surfaces, blow off with compressed air to remove dust.

    Wood : Should be free of chips and splinters. Excessively rough wood should be sanded before coating.

    MIXING : power mix separately, then combine and mix in the
    following proportions:

    Mfr. & Gun                                              2 Gal. Kit                              10 Gal. Kit
    Carboline 1340 ClearPart A                   1 gallon                                  5 gallons
    Carboline 1340 ClearPart B                   1 gallon                                  5 gallons

    For spray or brush application, may be thinned up to 25% by volume with Carboline Thinner #15. When coating wood, the first coat should be thinned 50% by volume with Carboline Thinner #15.

    Allow a 1 hour “sweat-in” prior to application.

    NOTE : Use of thinners other than those supplied or approved by Carboline may adversely affect product performance and void product warranty whether expressed or implied.

    POT LIFE : Twenty-four hours at 75℉ (24℃) and less at higher temperatures. Pot life ends when coating become too viscous to use.