Ultra-high Build Single-component Coal Tar Mastic Supplier in China
Ultra-high Build Single-component Coal Tar Mastic Coating paint coating manufacture Shenzhen China  
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Ultra-high Build Single-component Coal Tar Mastic


Description Ultra-high build, single-component coal tar
mastic for protecting steel and concrete
substrates subject to aggressive conditions
and for below grade damp proofing
Features �� Application up to 30 dry mils (750 microns)
in a single coat
�� Self priming, single-coat capabilities
�� Excellent corrosion resistance

Color Black
Finish Low Gloss
Primers Self-priming
Topcoats Not recommended
Dry Film
18.0 mils (450 microns) in one or two coats.
Total dry film thickness less than 12 mils (300
microns) or in excess of 30 mils (750 microns)
not recommended.
Solids Content By Volume: 68% ± 2%
Coverage Rate
1090 mil ft2 (26.7 m2/l at 25 microns)
Allow for loss in mixing and application
VOC Values As supplied: 3.0 lbs./gal (360 g/l)
12 oz/gal w/ #10 3.5 lbs./gal (417 g/l)
These are nominal values.
Dry Temp.
Continuous: 350°F (177°C)
Non-Continuous: 400°F (4°C)
Wet Temp.
Immersion temperature should not exceed
1°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
Surface Profile: 2.0-3.0 mils (50-75 micron)
Non-Immersion: Sweep blast to roughen
surface and produce a 1.0-2.0 (25-50 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.
Application Equipment
Listed below are general equipment guidelines for the application of this
product. Job site conditions may require modifications to these guidelines
to achieve the desired results.
General Guidelines:
This is a high solids coating and may require
adjustments in spray techniques. Wet film thickness
is easily and quickly achieved. T

Airless Spray Pump Ratio: 30:1

Brush & Roller
Recommended for touch up and striping of weld
seams and hard-to-coat areas. Avoid excessive rebrushing
or re-rolling.
Brush Use a medium bristle brush.
Roller Use a short-nap synthetic roller cover with phenolic
Mixing & Thinning
Mixing Power mix until uniform in consistency.
Thinning May be thinned up to 12 oz/gal (10%) with Thinner
#10 if needed. When used directly to concrete,
thinning is required on the first coat to provide
adequate “soak-in”.
Cleanup & Safety
Cleanup Use Thinner #2 or Xylene. 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.
Ventilation Warning: Vapors may cause explosion. 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 insure all personnel are below guidelines.
Caution This product contains flammable solvents. Keep
away from sparks and open flames.
Application Conditions







60°-85°F (16°-29°C)

60°-85°F (16°-29°C)

60°-90°F (16°-32°C)



50°F (10°C)

50°F (10°C)

50°F (10°C)



90°F (32°C)

125°F (52°C)

110°F (43°C)


Industry standards are for substrate temperatures to be above the dew
point. 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.
Curing Schedule





Temp. & 50%

Dry to Touch

Minimum Recoat Time

Cure for Immersion









50°F (10°C)

24 Hours

36 Hours

30 Days

75°F (24°C)

12 Hours

24 Hours

14 Days

90°F (32°C)

8 Hours

16 Hours

7 Days

Backfilling/Burial: May be started 7 days after the final coat is applied,
providing the surface temperature has remained above 60°F (16°C). These
times are based on an 18.0 mil (450 micron) dry film thickness. Higher film
thicknesses, insufficient ventilation, high humidity or cooler temperatures
will require longer cure times. Holiday Detection (if required): Wet sponge
types may be used if the dry film thickness is below mils (500 microns).
High voltage spark testing should be used when the dry film thickness
exceeds mils (500 microns).
Packaging, Handling & Storage
Shipping Weight
1 Gallon
13 lbs. (6 kg)
5 Gallons
65 lbs (30 kg)
Flash Point 80°F (26°C)
Storage (General) Store Indoors.
Storage Temperature
& Humidity
40°110°F (4°-43°C)
0-100% Relative Humidity
Shelf Life Min. 24 months at 75°F (24°C)
*Shelf Life: (actual stated shelf life) when kept at
recommended storage conditions and in original
unopened containers.


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