Bitumastic 300M Coal Tar Epoxy by Carboline

Selection & Specification Data

Generic	Coal Tar Epoxy
Description	Renowned high build coal tar epoxy for protection for steel and concrete in single or two-coat applications in a broad variety of aggressive industrial applications.
Features	Excellent chemical, corrosion and abrasion resistance High-build up to 35 mils (875 microns) in a single coat Compatible with controlled cathodic protection Meets or exceeds all requirements of: - Corp of Engineers C-200, C200a - AWWA C-210-92 for exterior - SSPC-Paint 16 - Steel Tank Institute Corrosion Control System STI-P₃
Color	Black (0900)
Finish	Will discolor, chalk and lose gloss in sunlight exposure.
Primers	Self-priming, Carboguard 888
Topcoats	Not recommended
Dry Film Thickness	16.0 mils (400 microns) in one or two coats. Total dry film thickness less than 8 mils (200 microns) or in excess of 35 mils (875 microns) not recommended.
Solids Content	By volume: 74% ± 2%
Theoretical Coverage Rate	1187 mil ft² (29.1 m²/I at 25 microns). Allow for loss in mixing and application.
Nominal VOC Values	As supplied: 2.0 Ibs/gal (192 g/I) Thinned: 20 oz/gal w/ #10: 2.6 Ibs/gal (307 g/I) Thinned: 25 oz/gal w/ #10: 2.7 Ibs/gal (325 g/I)
Dry Temperature Resistance	Continuous: 350°F (177°C) Non-Continuous: 370°F (190°C)
Wet Temperature Resistance	Immersion temperature should not exceed 120°F (49°C).
Limitations	Do not use for potable water requirements.

Substrates & 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 for maximum protection. SSPC-SP2 or SP3 as minimum requirement. Surface Profile: 2.0-3.0 mils (50-75 micron).
Concrete	Concrete must be cured 28 days at 75°F (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.

Performance Data

Test Method	System	Results	Report #
ASTM D4060 Abrasion	Blasted Steel 2 cts. 300M	130 mg. loss after 1000 cycles. CS 17 wheel, 1000 gm load.	02877
ASTM D4541 Adhesion	Blasted Steel 2 cts. 300M	1443 psi (pneumatic)	02877
ASTM D2794 Impact	Blasted Steel 2 cts. 300M	Impact site diameter. Inches: 3/8, 3/8, 1/2. 100 in/Ibs Gardner Impactor at 1/2 in. diam.	02877
ASTM B117 Salt Fog	Blasted Steel 2 cts. 300M	No blistering, rusting or delamination. No mea- surable undercutting at scribe after 2000 hrs.	02938

Application

Application Equipment

Spray Application (General)	This is a high solids coating and may require adjustments in spray techniques. Wet film thickness is easily and quickly achieved. The following spray equipment has been found suitable and is available from manufacturers such as Binks, DeVilbiss and Graco.
Conventional Spray	Pressure pot equipped with dual regulators, 3/8" LD. minimum material hose, with 50' maximum material hose .086" LD. fluid tip and appropriate air cap.
Airless Spray	Pump Ratio: 30:1 GPM Output: 3.0 (min.) Material Hose: 1/2" ID. (min.) Tip Size: 023-.035" Output PSI: 2300-2500 Filter Size: 30 mesh Teflon packings are recommended and available from the pump manufacturer.
Brush & Roller (General)	Recommended for touch up, striping of weld seams (General) and hard-to-coat areas only. Avoid excessive rebrushing or re-rolling.
Brush	Use a medium bristle brush.
Roller	Use a short-nap synthetic roller cover with phenolic core.

Mixing & Thinning

Mixing	Power mix separately, then combine and power mix for a minimum of two minutes. DO NOT MIX PARTIAL KITS.
Ratio	4:1 Ratio (A to B)
Thinning	Up to 20 oz/gal (16%) with Thinner #10. Up to 25 oz/gal (20%) Thinner #10 #10 for the first coat application to concrete. 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	75°F (24°C): 3 Hours 90°F (32°C): 1 Hour Pot life ends when coating loses body and begins to sag.

Cleanup & Safety

Cleanup	Use #2 Thinner 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 MSDS 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.
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 the National Electric Code. In areas where explosion hazards exist, workmen should be required to use non-ferrous tools and wear conductive and non-sparking shoes.
MSDS	Bitumastic 300M, Part A Bitumastic 300M, Part B Carboline Thinner #10 Carboline Thinner #2

Application Conditions

Condition	Material	Surface	Ambient	Humidity
Normal	60°-85°F (16°-29°C)	60°-85°F (16°-29°C)	60°-90°F (16°-32°C)	0-80%
Minimum	50°F (10°C)	50°F (10°C)	50°F (10°C)	0%
Maximum	90°F (32°C)	125°F (52°C)	110°F (43°C)	90%

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.

Curing Schedule

Surface Temp. & 50% Relative Humidity	Dry to Touch	Minimum Recoat Time	Maximum Recoat Time	Cure for Immersion
50°F (10°C)	8 Hours	10 Hours	24 Hours	14 Days
75°F (24°C)	4 Hours	6 Hours	24 Hours	7 Days
90°F (32°C)	2 Hours	3 Hours	24 Hours	5 Days

These times are based on a 16.0 mil (400 micron) dry film thickness. Higher film thickness, insufficient ventilation, high humidity or cooler temperatures will require longer cure times. 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. If the maximum recoat time is exceeded, the surface must be abraded by sweep blasting prior to the application of additional coats. Holiday Detection (if required): Wet sponge types may be used if the dry film thickness is below 20 mils (500 microns). High voltage spark testing should b e used when the dry film thickness exceeds 20 mils (500 microns). Refer to NACE RP0188-90 for specific procedures.

Packaging, Handling & Storage

Packaging, Handling & Storage

Shipping Weight (Approximate)	1.25 Gallon Kit 12 lbs (6 kg)	5 Gallons 50 Ibs (26 kg)
Flash Point (Setaflash)	75°F (24°C) for Part A >200°F (93°C) for Part B
Storage (General)	Store Indoors.
Storage Temperature & Humidity	40°110°F (4°-43°C) 0-100% Relative Humidity
Shelf Life	24 months at 75°F (24°C)

Bitumastic is a century-old trade name that is often associated with long-term protection from water penetration. Typically made from coal tars and blends of resins such as epoxy, these products have been used as tank linings, to coat the interior and exterior of buried pipe, and to protect equipment subjected to water immersion.

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Bitumastic 300M Coal Tar Epoxy by Carboline