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Home > KBS Direction Pages > RustSeal Technical Data

RustSeal Technical Data

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KBS RustSeal - Stop Rust

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Using RustSeal
to Seal Concrete

RustSeal Chemical
Resistance Guide

Physical Data

Type of coating: Single Component Moisture Curing Polymeric Isocyanate.

Colors: Gloss Black, Satin Black, Silver, Grey, Oxide Red, Guardian Green, Off-White,Cat Yellow, Galvanized Steel, Safety Blue.

Gloss: Galvanized Steel (30%), Satin Black (70-75%), Gloss Black (85-95%), Other Colors (75-85%)

Solids: 72-76% depending on color.

Flash Point: 103°F (40°C)

Viscosity: at 77°F (25°C), 250-450cps depending on color.

VOC: Not more than 250gl

Minimum Recommended Dry film thickness: 3-5 mils (75-125um) this is normal achieved in 2-3 coats.

Coverage: On porous surfaces like rust and corrosion approximately 100 sq. ft. per quart or 400 sq. ft. per gallon (9.5m 2 per liter) at 2 mils (50um) thickness. Coverage will vary depending on surface profile, application method and film thickness.

General appearance and Characteristics: Smooth ceramic like finish with very high levels of flexibility and toughness. Strong resistance to impact, high temperature, abrasion and common aggressive chemicals including; Acids, Alkalis, Salts, Minerals, Solvents, Fuels and Hydraulic fluids.

Compatibility with other topcoats: RustSeal can be topcoated with any type of topcoat and primer systems including but not limited to Urethanes, Epoxies, Enamels, Fiberglass resins, Water based coatings, lacquers and two component automotive refinishing products.

Container Availability: 8oz (236mls), Pint (475mls), Quart (946mls), Gallon (3.78L), 5 Gallon (18.9L), Drum 55 Gallon (208L)

Clean Up & Storage

Pot life: Pot life will depend on local humidity conditions and the length of time the coating is exposed to moisture. Though providing the can is resealed well and only opened for limited periods at a time the average life is approximately 1-2 months.

Solvent: Use only KBS #1 Thinner. The use of other solvents can cause premature coating failure and or lost of adhesion.

Storage Requirements: Store in cool dry conditions away from direct sun light 41-95°F (5-35°C)

Dry Times

Temp & Humidity90°F/32°C75°F/24°C55°F/12°C
0-25%2 Hrs2.5 Hrs3.5-4 Hrs
50%2 Hrs2.5 Hrs3.5-4 Hrs
70%1.5 Hrs2 Hrs3 Hrs
85-100%1-1.5 Hrs1.5-2 Hrs2.5-3 Hrs

Full Cure: 24 Hrs depending on humidity.

Physical & Performance Characteristics

Elongation Rate
Salt water resistance (ASTM B-117)
95°F (35°C) at 5% salt water for 2000 Hrs
No noticeable change
Abrasion Resistance
(ASTM-C-501)  (1 kg load/1000 cycle)
Zero (0) Weight Loss
Impact Resistance
(MIL-D-3134F sec 4.7.3)
Exceeds 16ft/lb
Impact Resistance
Satisfactory per ¶ 3.1
Tensile Strength
(ASTM C-307 psi
>3,200 psi
Flexural Strength
(ASTM C-580 psi)
>5,200 psi
Compressive Strength
(ASTM C-579 psi)
>12,500 psi
(MIL-D-3134F sec 4.7.4)
No indentation

Temperature, Weather & Bacteria Resistance

Porosity (NACE Stand TM0174)
*Across Entire Color Range
0.00, Completely Non-porous
Bacterial & Fungus Resistance
Zero (0) Growth
Salt Spray Resistance
(ASTM B-117)
250 hrs @ 98°F / 37°C
1000 hrs @ 98°F / 37°C


Zero (0) Change
Zero (0) Change

Resistance to elevated
temperatures (Mil-D-3134F)
Water Absorption
(ASTM C-413)
0.0001 maximum
Thermal cycling
(NTS Climatic Test Cell)
120 day cycle
(-30°F-140°F / -34°C-60°C)

Chemical Resistance

Results of contact spot testing of RustSeal with various common materials.
RustSeal applied to steel Q panels at 4 mil (100um) film thickness and placed in continuous contact with the following materials for 168 Hr (7days).

Sodium Hydroxide 10%168HrSome discoloration, coating intact
Sulphuric Acid 20%168HrSome discoloration, coating intact
Hydrochloric Acid 40%168HrNo noticeable change
Phosphoric Acid 20%168HrNo noticeable change
Ammonium Chloride (Fertilizer)168HrNo noticeable change
Brake fluid168HrNo noticeable change
MEK ( Strong Solvent)168HrNo noticeable change
93 octane Fuel168HrNo noticeable change
Xylene168HrNo noticeable change
Hydraulic fluid168HrNo noticeable change
Diesel168HrNo noticeable change
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