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Specifications
Bitumastic 300M Coal Tar
Epoxy Protective Coating
By Carboline
Bitumastic 300M Overview |
Bitumastic 300M Specs |
Bitumastic 50 |
Carboguard
A-788
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. |
| 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 |
| 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 |
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%) w/ #10.
Up to 25 oz/gal (20%) w/ #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 |
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 |
| 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.
|
| 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
|
| 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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