Plasite 7122 - Epoxy Lining for Food, Fuel, & Petrochemical Tanks

Q: What is the coverage rate for Plasite 7122?

Plasite 7122 covers 136 ft2/gal at 6.0 mils DFT and 117 ft2/gal at 7.0 mils DFT (theoretical, 51% solids by volume). Two multi-pass spray coats produce a 12-15 mil total DFT, which is recommended for immersion service. Allow for loss in mixing and application.

Q: What is the mix ratio and pot life for Plasite 7122?

Mix ratio is 36:1 by volume (Part A to Part B). Mix Part A and Part B separately, then add Part B to Part A slowly and mix thoroughly. Allow the combined coating to stand approximately 30 minutes before applying. Pot life is 24 hours at 70F (21C), and less at higher temperatures.

Q: Is Plasite 7122 FDA compliant for food-grade service?

Yes -- Plasite 7122 meets FDA requirements for 21 CFR 175.300. It is suitable for food-grade service where product purity, taste, and odor are critical.

Q: What temperature resistance does Plasite 7122 have?

Plasite 7122 has a non-continuous dry temperature resistance of 400F (204C). It is not normally recommended for high-temperature service but will tolerate short excursions to 400F. Immersion service requires force curing per the published cure schedule.

Q: What surface preparation is required for steel?

For immersion service or aggressive chemical exposures, abrasive blast steel to SSPC-SP10 / NACE No. 2 (Near-White) with a 1-3 mil (25-75 micron) profile. For non-immersion atmospheric service, SSPC-SP6 is preferred; where abrasive blasting is not practical, clean per SSPC-SP3 to a rough, non-polished surface.

Q: How is Plasite 7122 cured for immersion service?

Immersion service requires force curing. Allow an air dry of 2-5 hours at 70-100F, then raise the substrate temperature approximately 30F every 30 minutes until the target force cure temperature is reached. Cure-for-service times range from 18 hours at 130F down to 2 hours at 190F. Final cure can be verified with a 10-minute MIBK exposure test.

Carboline Plasite 7122 - Epoxy Lining for Fuel & Petrochemical Tanks

Plasite 7122 - Epoxy Lining for Food, Fuel, & Petrochemical Tanks

by Carboline

$228.35 - $1,027.57

$228.35

$228.35 - $1,027.57

$228.35

Plasite 7122 Epoxy Phenolic Tank Lining by Carboline is a versatile, lining-grade epoxy phenolic engineered to deliver wide chemical resistance across aggressive immersion and atmospheric exposures. Self-priming and backed by a long history of proven performance, it protects steel substrates in some of the most demanding fuel, petrochemical, and food-grade storage environments.

This product combines broad chemical resistance, excellent abrasion and thermal shock resistance, and FDA-compliant purity, making it a trusted choice for tank linings, process equipment, and chemically resistant coatings where product taste and odor must be preserved.

Find the entire collection of Carboline Products Here >

Key Benefits:

Wide Chemical Resistance: Plasite 7122 provides broad resistance across aggressive chemical exposures, whether used as a lining for immersion service or as a chemically resistant coating for harsh atmospheric environments and spill/fume conditions — making it a versatile solution for varied process chemistries.

Excellent Fuel Resistance: Engineered with excellent resistance to fuels, Plasite 7122 is well suited for petroleum and petrochemical storage applications where reliable, long-term protection against fuel exposure is essential.

Abrasion & Thermal Shock Resistance: Superior mechanical durability, paired with excellent thermal shock resistance, makes this lining an ideal choice for tanks and equipment subject to physical wear and rapid temperature changes.

FDA Compliance for Food-Grade Service: Meets FDA requirements under 21 CFR 175.300 and is suitable for food-grade service where product purity — taste and odor — is critical, giving specifiers confidence in food and beverage contact applications.

Self-Priming with a Proven Track Record: A self-priming formula simplifies application and reduces system complexity, while a long history of field performance assures real-world reliability across decades of service.

Common Industry Applications:

Fuel & Petrochemical Storage: Excellent fuel resistance supports use as a lining for fuel storage tanks, process vessels, and petrochemical equipment subject to aggressive immersion exposures.
Chemical Processing Facilities: Wide chemical resistance makes Plasite 7122 suitable as both an immersion lining and a chemically resistant coating for aggressive spill and fume exposures.
Food & Beverage: FDA 21 CFR 175.300 compliant and formulated for food-grade service where product purity, taste, and odor must be protected.
Tanks & Process Equipment: Excellent abrasion and thermal shock resistance extend asset life on tanks and equipment exposed to physical wear and thermal cycling.
Atmospheric & Aggressive Exposures: Performs as a chemically resistant coating for aggressive atmospheric service, with the durability to tolerate short temperature excursions to 400°F (204°C).

PLASITE 7122 IS AVAILABLE IN 1-GALLON AND 5-GALLON KITS.
SOLD AS A 2-PART SYSTEM — PART A & PART B.

Product Type: Epoxy Phenolic Lining-Grade Coating

Finish: High Gloss

Application: Conventional Spray, Airless Spray, or Brush (small areas and repairs)

Mixing: 36:1 Ratio Parts A to B by Volume

Colors: Light Grey (U74P), White (U80P)

Contact our customer support today to discuss your project
(800) 567-5358

Quantity

Service Type

Area to cover (sq ft)

DFT per coat (mils)

Color

Compatible Thinners

Thinner	Use With	Max Rate
Plasite Thinner #71	Internal tank lining · normal temps · cleanup (medium-fast)	Up to 10% (20% at higher temps)
Plasite Thinner #19	Exterior · hot or windy conditions (slower evaporating)	As required

⚠ Thinning is necessary to spray this coating. Only Carboline-supplied thinners are approved — use of other thinners may adversely affect performance and void the warranty.
Thinner #71 is the primary thinner for internal lining work and is also used for cleanup. Use Thinner #19 for exterior, hot, or windy conditions where a slower evaporation rate helps control overspray.

Recommended Coating Systems

Two-Coat Tank Lining — Immersion & Food-Grade Service

First Coat Plasite 7122 6–7 mils DFT · self-priming

→

Second Coat Plasite 7122 6–7 mils DFT · 12–15 mils total · force cure

This same two-coat system serves both standard chemical immersion linings and FDA 21 CFR 175.300 food-grade service. Immersion service requires a heated force cure.

Three-Coat System — Blast-Hold Primer + Lining

Blast-Hold Primer Carboguard 60 holds blast profile · verify compatibility

→

First Lining Coat Plasite 7122 6–7 mils DFT

→

Second Lining Coat Plasite 7122 6–7 mils DFT

Frequently Purchased Together

#71

Plasite Thinner #71

Primary thinner for Plasite 7122 internal tank lining. Up to 10% (20% at higher temps). Also used for cleanup.

Call (800) 567-5358

Call to Order

Carboguard 60

High-solids epoxy polyamide used as a blast-hold primer or intermediate coat in multi-coat steel tank lining systems. Confirm compatibility with Carboline Technical Service.

Compatible companion product — not required for use with Plasite 7122 (self-priming).

Call (800) 567-5358

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Carboguard 893 Corrosion Resistant Primer

Carboguard 893 Primer

Corrosion-resistant epoxy primer for steel. A first coat option in aggressive atmospheric systems. Confirm system compatibility for your service.

Compatible companion product — not required for use with Plasite 7122 (self-priming).

$439.48 / kit

Shop Now

Product Specs — Plasite 7122

Plasite 7122 — Epoxy Phenolic Lining-Grade Coating by Carboline.
A versatile lining-grade epoxy phenolic engineered for wide chemical resistance, suitable both as a chemically resistant coating for aggressive atmospheric exposures and as a lining for a variety of chemical immersion services. Self-priming with a long history of proven field performance. Excellent abrasion, thermal shock, and fuel resistance. Suitable for food-grade service where product taste and odor are critical. High gloss finish.

✓ FDA 21 CFR 175.300 — food-grade service • ✓ Wide chemical resistance • ✓ Excellent fuel resistance • ✓ Self-priming

✏️ Need a project quote? Request Online

📞 Questions? Call (800) 567-5358 — Mon–Fri 8AM–5PM EST

Plasite 7122 by Carboline

Plasite 7122 epoxy phenolic lining-grade coating by Carboline — chemically resistant coating for steel tanks and immersion service — Plasite 7122 — Epoxy Phenolic Lining-Grade Coating

Shipping Map — Carboline Delivery Timing

Carboline US regional warehouse shipping map showing typical 2, 3, and 4-day delivery transit zones — Typical transit times vary by destination zone. Click map to enlarge.

Shipping Time

Call (800) 567-5358 for pricing and logistics questions.

Carboline orders ship from regional warehouses nearest to your location, with full product stock maintained at each facility.

Most orders ship within 2–3 business days of order placement. Transit times shown on the map are typical but not guaranteed.

Available sizes: 1-gallon kit (12 lbs) • 5-gallon kit (57 lbs)

Shelf Life: 24 months when stored at 50–90°F (10–32°C) in a dry area, out of direct sunlight. Do not freeze.

Plasite 7122 applied as a chemically resistant lining for steel tank immersion service — Plasite 7122 applied as a chemically resistant tank lining.

Coverage Rates

Recommended DFT: 6–7 mils per coat. Two multi-pass spray coats produce a 12–15 mil (300–375 micron) total DFT, which is recommended for immersion service.

DFT per Coat	Imperial	Metric	Typical Use
1.0 mil (25 µm)	818 ft²/gal	20.1 m²/l	Theoretical reference
6.0 mils (150 µm)	136 ft²/gal	3.3 m²/l	Standard per coat
7.0 mils (175 µm)	117 ft²/gal	2.9 m²/l	Maximum per coat — immersion service

51% solids by volume. Allow for loss in mixing and application. Source: Carboline Plasite 7122 PDS, March 2025 (doc 130P).

Technical Specifications

Property	Value	Notes
Generic Type	Epoxy Phenolic (Lining-Grade)	—
Finish	High Gloss	Gloss 86
Standard Colors	Light Grey (U74P) · White (U80P)	Limited other colors may be available — contact your Carboline representative
Volume Solids	51% ±2%	—
DFT per Coat	6–7 mils (152–178 µm)	Two coats produce 12–15 mils — recommended for immersion
Mix Ratio	36:1 by volume (Part A to Part B)	—
Stand Time After Mixing	Approximately 30 minutes	Required after combining the two components
Pot Life @ 70°F	24 hours	Less at higher temperatures
VOC (As Supplied)	3.34 lbs/gal (400 g/l)	Varies between colors — contact Carboline Technical Service
VOC (Thinned 10% with #71)	3.67 lbs/gal (440 g/l)	—
Thinning (Internal Tank Lining)	Up to 10% (normal temps), up to 20% (higher temps)	Plasite Thinner #71 (medium-fast)
Thinning (Exterior / Hot or Windy)	As required	Plasite Thinner #19 (slower)
Cleanup	Thinner #71	—
Dry Temp. Resistance	400°F (204°C) non-continuous	Not normally recommended for high-temp service — tolerates short excursions only
FDA Compliance	21 CFR 175.300	Food-grade service where taste and odor are critical
Primer	Self-priming	—
Shelf Life	24 months	Turn stock upside down every 3 months to aid mixing
Storage	50–90°F (10–32°C) · dry · out of direct sunlight	Avoid excessive heat · do not freeze
Flash Point — Part A	24.8°F (-4°C)	Flammable — handle with care
Flash Point — Part B	138.2°F (59°C)	—
1-Gallon Kit	Part A 0.97 gal · Part B 0.0269 gal	Shipping weight ~12 lbs (5.2 kg)
5-Gallon Kit	Part A 4.88 gal · Part B 0.1352 gal	Shipping weight ~57 lbs (26 kg)

Source: Carboline Plasite 7122 Product Data Sheet (March 2025, doc 130P).

Mixing Instructions

Mix Ratio: 36:1 by volume (Part A to Part B).

Mix Part A and Part B separately. Then add Part B to Part A slowly and mix thoroughly until uniform.

Stand time: Allow the combined coating to stand approximately 30 minutes after the two components are combined before beginning application.

Pot life: 24 hours at 70°F (21°C), and less at higher temperatures.

Thinning by Application

Thinning is necessary to spray this coating. Thin up to 10% for normal temperatures and up to 20% for higher temperatures if necessary. Use the correct Plasite thinner for the conditions.

Condition	Max Thinning	Approved Thinner
Internal Tank Lining	Up to 10% (normal) / 20% (higher temps)	Plasite Thinner #71 (medium-fast)
Exterior (Hot or Windy)	As required	Plasite Thinner #19 (slower)

⚠️ The coating should stand approximately 30 minutes after the two components are combined before application. Source: Carboline Plasite 7122 PDS (March 2025, doc 130P).

Carboline Plasite 7122 mixing procedure — mix Part A and Part B separately, then add Part B to Part A at a 36:1 ratio — Mix each part separately, then add Part B to Part A. 36:1 ratio. Allow ~30-min stand before applying.

Application Equipment Guidelines

Method	Equipment Specification
Spray (General)	Spray gun providing an 8–12 inch wide pattern with best possible atomization. Apply a mist bonding pass, allow ~1 minute (not fully dry), then crisscross multi-passes at a fairly rapid rate, maintaining a wet film. Build to ~6–7 mils DFT per coat; repeat for a second coat to reach 12–15 mils DFT total.
Conventional Spray	Air pressure: 50 psi at the gun · Pot pressure: 10–15 psi
Airless Spray	Fluid pressure: 1,500–1,800 psi · Tip size: 0.015–0.021 inches
Brush	Recommended for small areas and repairs only. High-quality brush — apply a light crisscross coat, allow ~5 min, then a heavy crisscross coat. Flow the coating on rather than brush out. Yields approximately 2.5–3.0 mils DFT per coat.

Compatible Substrates & Surface Preparation

Proper surface preparation is essential to performance. Requirements differ between immersion/aggressive service and atmospheric service.

Substrate / Service	Surface Preparation Requirement
Steel — Immersion / Aggressive Chemical (Spill/Fume)	Abrasive blast to SSPC-SP10 / NACE No. 2 (Near-White metal) · Profile: 1–3 mils (25–75 µm)
Steel — Non-Immersion (Atmospheric)	Preferred: SSPC-SP6. Where abrasive blasting is not permitted or practical, clean per SSPC-SP3 to a rough, non-polished surface.
Galvanized Steel	Contact Carboline Technical Service.
Concrete or CMU	Contact Carboline’s Technical Service Department for a recommendation.

Application Conditions

Condition	Material	Surface	Ambient	Humidity
Minimum	50°F (10°C)	50°F (10°C)	50°F (10°C)	0%
Maximum	80°F (27°C)	120°F (49°C)	120°F (49°C)	90%

Within 24 hours after the coating is applied, a minimum substrate temperature of 70°F (21°C) is required for proper polymerization.

Curing Schedule

Ambient cure schedule below is for ambient applied and cured material at 50% RH.

Surface Temp.	Dry to Recoat	Final Cure
70°F (21°C)	10 Hours	7 Days
85°F (29°C)	6 Hours	5 Days

Force Cure for Immersion Service

Surface Temp.	Immersion Cure Time
130°F (54°C)	18 Hours
140°F (60°C)	10 Hours
150°F (66°C)	6 Hours
170°F (77°C)	3.5 Hours
190°F (88°C)	2 Hours

⚠️ Immersion service requires force curing. Allow an air dry of 2–5 hours at 70–100°F, then raise the substrate temperature ~30°F every 30 minutes until the target cure temperature is reached. Verify final cure with a 10-minute MIBK exposure: if only minor softening occurs, cure is complete and the film should re-harden.

Good to Know Before You Buy

⚠️ What to Know Before You Buy

Immersion service requires a heated force cure — confirm you can do this before ordering. Ambient cure alone is not enough for immersion. The lining must be force cured at elevated temperature (for example, 6 hours at 150°F up to 18 hours at 130°F). If your project can’t apply heat, this product may not be the right fit — call us and we’ll help you confirm.
Self-priming, with two coats for immersion. No separate primer needed. A single coat is 6–7 mils; immersion service calls for two coats to reach a 12–15 mil total system. Plan your order quantity around the total system thickness.
Built for chemical resistance, not continuous high heat. Dry temperature resistance is 400°F (204°C) non-continuous — it tolerates short excursions but is not intended for continuous high-temperature service.

Frequently Asked Questions — Plasite 7122

What is the coverage rate for Plasite 7122?

Plasite 7122 covers 136 ft²/gal at 6.0 mils DFT and 117 ft²/gal at 7.0 mils DFT theoretical, based on 51% volume solids. Two multi-pass spray coats produce a 12–15 mil total DFT, which is recommended for immersion service. Allow for loss in mixing and application.

What is the mix ratio and pot life?

Mix ratio is 36:1 by volume (Part A to Part B). Mix each part separately, then add Part B to Part A slowly and mix thoroughly. Allow the combined coating to stand approximately 30 minutes before application. Pot life is 24 hours at 70°F (21°C) and less at higher temperatures.

Is Plasite 7122 FDA compliant for food-grade service?

Yes — Plasite 7122 meets FDA requirements for 21 CFR 175.300. It is suitable for food-grade service where product purity — taste and odor — is critical.

What temperature resistance does Plasite 7122 have?

Dry temperature resistance is 400°F (204°C) non-continuous. The product is not normally recommended for high-temperature service but will tolerate short excursions to 400°F. It is best suited to immersion linings and chemically resistant coatings rather than continuous high-heat duty.

What surface preparation is required for steel?

For immersion or aggressive chemical exposures, abrasive blast steel to SSPC-SP10 / NACE No. 2 (Near-White) with a 1–3 mil (25–75 µm) profile. For non-immersion atmospheric service, SSPC-SP6 is preferred; where blasting is not practical, clean per SSPC-SP3 to a rough, non-polished surface. For galvanized steel, concrete, or CMU, contact Carboline Technical Service.

How is Plasite 7122 cured for immersion service?

Immersion service requires force curing. Allow an air dry of 2–5 hours at 70–100°F, then raise the substrate temperature approximately 30°F every 30 minutes until the target is reached. Cure-for-service times range from 18 hours at 130°F down to 2 hours at 190°F. Verify final cure with a 10-minute MIBK exposure — only minor softening indicates a complete cure.