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Phenoline 385/187 VOC High-Solids Epoxy Phenolic Tank Lining

Phenoline 385/187 VOC High-Solids Epoxy Phenolic Tank Lining

by Carboline
$288.55 - $1,289.40
$288.55
$288.55 - $1,289.40
$288.55

Phenoline 385/187 VOC High-Solids Epoxy Phenolic Tank Lining by Carboline is a high-solids, polyamine cured, modified epoxy phenolic lining engineered for exceptional chemical resistance in the most demanding immersion and industrial environments. Self-priming and applicator friendly, it provides outstanding long-term protection on steel and concrete substrates across a wide range of services — from crude oil storage to food and beverage processing.

This product delivers a powerful combination of chemical resistance, temperature performance, and regulatory compliance, making it a go-to solution for tank linings, under-insulation applications, and process equipment protection.

Find the entire collection of Carboline Products Here >

Key Benefits:

Exceptional Chemical Resistance: Phenoline 385/187 VOC provides broad resistance to crude oil, petroleum products, Jet A fuel, aromatic solvents, acids, caustics, and a wide array of industrial chemicals — backed by extensive immersion test data to assure real-world performance.
Outstanding Temperature Performance: Rated for continuous dry service to 400°F (204°C) and non-continuous to 450°F (232°C), with the same continuous rating under insulation — making it ideal for high-temperature pipework, vessels, and CUI (corrosion under insulation) applications.
FDA & Regulatory Compliance: Meets FDA requirements under 21 CFR 175.300 for direct aqueous food contact, passes the EI 1541 jet fuel gum test for aviation fuel systems, and complies with MIL-PRF-4556F testing — giving specifiers confidence across food, beverage, defense, and aviation applications.
High-Solids, Low-VOC Formula: With 85% solids by volume and a VOC content of only 1.00 lbs/gal (119 g/l) as supplied, this product complies with current AIM regulations, reduces the number of containers to open and dispose of, and saves labor — all while minimizing environmental impact.
Abrasion & Thermal Shock Resistance: Superior mechanical durability and outstanding resistance to wet/dry cycling at elevated temperatures make this lining an ideal choice for tanks and equipment subject to thermal fluctuation and physical wear.

Common Industry Applications:

  • Oil & Gas Refining and Storage: Proven resistance to crude oil (up to 180°F/82°C), refined fuels, kerosene, and aromatic solvents for storage tanks, process piping, and terminals.
  • Chemical Processing Facilities: Broad chemical resistance data supports use across a wide range of aggressive process chemistries, acids, and caustics.
  • Food, Beverage & Water: FDA 21 CFR 175.300 compliant for aqueous food contact; recommended for demineralized water, tap water, corn syrup, beer, wine, vegetable oils, and beverage storage tanks.
  • Aviation & Fuel Handling: Passes EI 1541 jet fuel gum test, making it suitable for aviation fuel systems and fuel oil/biodiesel storage tanks.
  • Power Industry & Under-Insulation: Exceptional performance in wet/dry cycling and continuous service to 400°F (204°C) under insulation, extending asset life in high-temperature pipework and vessels.

PHENOLINE 385/187 VOC IS AVAILABLE IN 1-GALLON AND 5-GALLON KITS.
SOLD AS A 2-PART SYSTEM — PART A & HI PERFORMANCE CATALYST (PART B).

Product Type: High-Solids Polyamine Cured Modified Epoxy Phenolic

Phenoline 385/187 VOC has a Semi-Gloss finish

Applied via Conventional Spray, Airless Spray, or Brush

Mixing: 2:1 Ratio Parts A to B

Available Colors: Gray (0700), White (0800)

Roller not recommended for tank lining applications

Contact our customer support today to discuss your project:

(800) 567-5358
Size: 1-gallon
Color: Gray (0700)
Coverage Calculator

Compatible Thinners

Thinner Use With Max Rate
Thinner #2 Spray · Brush · Stripe coat (50% min) 20% (25 oz/gal)
Thinner 76 Spray · Non-photochemically reactive option 20% (25 oz/gal)
Thinner 225 E Spray · Lowest VOC option (67 g/l) 13 oz/gal

⚠ Only Carboline-supplied thinners are approved. Use of other thinners may void product warranty.
Thinner #2 is the primary recommended thinner for all methods. Thinner 76 and 225E are alternate options — contact us for availability.

Recommended Coating Systems

Standard Two-Coat Tank Lining
First Coat Phenoline 385/187 VOC 4–6 mils DFT · self-priming
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Second Coat Phenoline 385/187 VOC 4–6 mils DFT · max 18 mils total
Three-Coat System — Blast Hold Primer + Lining
Blast-Hold Primer Carboguard 60 4–6 mils DFT · holds blast profile
→
First Lining Coat Phenoline 385/187 VOC 4–6 mils DFT
→
Second Lining Coat Phenoline 385/187 VOC 4–6 mils DFT
Exterior Tank Shell / Under-Insulation System
Lining (CUI) Phenoline 385/187 VOC 2 coats · 400°F continuous under insulation
→
Exterior Finish Carbothane 134 HG 2–3 mils DFT · UV-stable polyurethane
Food, Beverage & Water Tank Lining
First Coat Phenoline 385/187 VOC 4–6 mils DFT · FDA 21 CFR 175.300
→
Second Coat Phenoline 385/187 VOC 4–6 mils DFT · force cure required for food-grade

Frequently Purchased Together

Carboline Thinner No. 2 — primary thinner for Phenoline 385/187 VOC
Carboline Thinner No. 2
Primary thinner for Phenoline 385/187 VOC. Up to 20% for spray; 50% min for stripe coat. Also used for cleanup.
$129.87 / gal
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Carboline Thinner No. 33
Carboline Thinner No. 33
Alternate compatible thinner. Suitable for brush application and cleanup in hot or windy conditions.
$137.22 / gal
Shop Now
Carboguard 60 Epoxy Polyamide — blast-hold primer for tank lining systems
Carboguard 60
High-solids epoxy polyamide. Used as a blast-hold primer or intermediate coat in three-coat tank lining systems with Phenoline 385.
Call (800) 567-5358
Shop Now
Carboguard 893 Corrosion Resistant Primer
Carboguard 893 Primer
Corrosion-resistant epoxy primer for steel. Ideal first coat in aggressive atmospheric systems before Phenoline lining coats.
$439.48 / kit
Shop Now

Phenoline 385/187 VOC High-Solids Epoxy Phenolic Tank Lining by Carboline

Product Specs — Phenoline 385/187 VOC

Phenoline 385/187 VOC — High-Solids Epoxy Phenolic Tank Lining by Carboline.
A polyamine cured modified epoxy phenolic engineered for exceptional long-term chemical resistance in immersion and industrial environments. Self-priming. Rated to 400°F (204°C) continuous in dry service and under insulation. FDA compliant for direct aqueous food contact. Passes EI 1541 jet fuel gum test. Complies with MIL-PRF-4556F. Low VOC at 1.00 lbs/gal (119 g/l) as supplied.

✓ Low VOC — 1.00 lbs/gal (119 g/l) as supplied  •  ✓ FDA 21 CFR 175.300 — direct aqueous food contact  •  ✓ Passes EI 1541 jet fuel gum test  •  ✓ Complies with MIL-PRF-4556F

✏️ Need a project quote? Request Online

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

Phenoline 385/187 VOC by Carboline

Phenoline 385/187 VOC high-solids epoxy phenolic tank lining by Carboline — chemical resistant coating for steel and concrete
Phenoline 385/187 VOC — High-Solids Epoxy Phenolic Tank Lining

Shipping Map — Carboline Delivery Timing

Carboline US regional warehouse shipping map showing typical 2, 3, and 4-day delivery transit zones 🔍 Click to enlarge
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 (15 lbs)  •  5-gallon kit (75 lbs)

Shelf Life: Part A — 12 months  •  Hi Performance Catalyst — 6 months. Store at 40–110°F indoors in original unopened containers.

Phenoline 385/187 VOC applied as a tank lining for chemical storage
Phenoline 385/187 VOC applied as a tank lining for chemical storage.

Coverage Rates

Recommended DFT: 4–6 mils per coat. Two coats required for optimum performance. A third coat may be applied for additional thickness or service life. Total system must not exceed 18 mils (457 microns) DFT.

DFT per Coat Imperial Metric Typical Use
1.0 mil (25 µm)1,363 ft²/gal33.5 m²/lTheoretical reference
4.0 mils (100 µm)341 ft²/gal8.4 m²/lMinimum per coat — standard tank lining
6.0 mils (150 µm)227 ft²/gal5.6 m²/lMaximum per coat — immersion and aggressive service

85% solids by volume. Allow for loss in mixing and application. Source: Carboline Phenoline 385/187 VOC PDS, March 2025 (doc 1103).

Technical Specifications

PropertyValueNotes
Generic TypeHigh-Solids Polyamine Cured Modified Epoxy Phenolic—
FinishSemi-Gloss—
Standard ColorsGray (0700) · White (0800)Limited colors available on special order
Volume Solids85% ±2%—
DFT per Coat4–6 mils (102–152 µm)Two coats required · system max 18 mils total
Mix Ratio2:1 by volume (Part A to Hi Performance Catalyst)Do not mix partial kits
Sweat-In Time15 minutes after combining partsRequired before application
Pot Life @ 75°F1¼ hours (75 minutes)2 hours at 60°F · shorter at higher temps
VOC (As Supplied)1.00 lbs/gal (119 g/l)Compliant with current AIM regulations
VOC (Thinner 76 @ 25 oz/gal)1.96 lbs/gal (235 g/l)—
VOC (Thinner 225E @ 13 oz/gal)0.56 lbs/gal (67 g/l)Lowest-VOC thinning option
VOC (Thinner 2 @ 25 oz/gal)2.00 lbs/gal (240 g/l)—
Thinning (Spray)Up to 20% (25 oz/gal) with Thinner 2, Thinner 76, or Thinner 225EThinning required to properly atomize
Stripe / Weld Pass ThinningMinimum 50% by volumeRequired before spray application
CleanupThinner 2 or Acetone—
Dry Temp. Resistance400°F (204°C) continuous · 450°F (232°C) non-continuous—
Under Insulation Resistance400°F (204°C) continuous · 450°F (232°C) non-continuousOutstanding wet/dry cycling resistance
FDA Compliance21 CFR 175.300 — direct aqueous food contactForce cure at 225°F for 4 hrs required for food-grade use
MIL SpecificationMIL-PRF-4556F compliant—
Jet FuelPasses EI 1541 jet fuel gum testAviation fuel handling systems
PrimerSelf-priming—
Shelf Life — Part A12 months at 75°F (24°C)Unopened, stored indoors
Shelf Life — Hi Performance Catalyst6 months at 75°F (24°C)Shorter than Part A — check dates before use
StorageIndoors · 40–110°F · 0–100% RH—
Flash Point — Part A52°F (11°C)Flammable at ambient temperature — handle with care
Flash Point — Hi Performance Catalyst60°F (15°C)—
Kit Sizes1-gal kit (15 lbs) · 5-gal kit (75 lbs)—

Source: Carboline Phenoline 385/187 VOC Product Data Sheet (March 2025, doc 1103).

Mixing Instructions

Mix Ratio: 2:1 by volume (Part A to Hi Performance Catalyst / Part B).

Power mix Part A separately. Power mix Part B (Hi Performance Catalyst) separately. Then combine and power mix together until fully uniform. DO NOT MIX PARTIAL KITS.

Sweat-in time: Allow a 15-minute sweat-in period after combining parts before beginning application. This is required — do not skip.

Pot life: 1¼ hours at 75°F (24°C) · 2 hours at 60°F (15°C). Shortens at higher temperatures. Pot life ends when the coating loses body and begins to sag.

Thinning by Application Method

Thinning is required to properly atomize the mixed material for spray application. Use only Carboline-approved thinners — unauthorized thinners may adversely affect performance and void the warranty.

Application MethodMax ThinningApproved Thinners
Conventional SprayUp to 20% (25 oz/gal)Thinner 2, Thinner 76, or Thinner 225E
Airless SprayUp to 20% (25 oz/gal)Thinner 2, Thinner 76, or Thinner 225E
BrushAs needed — flow the coating onThinner 2, Thinner 76, or Thinner 225E
RollerNot recommended for tank liningShort-nap synthetic with phenolic core for non-tank applications only
Stripe / Weld PassMinimum 50% by volumeThinner 2, Thinner 76, or Thinner 225E
⚠️ Before spray application, stripe brush all weld seams and surface irregularities using a minimum 50% by volume dilution. This is a required step, not optional. Source: Carboline Phenoline 385/187 VOC PDS (March 2025, doc 1103).
Carboline Phenoline 385/187 VOC mixing procedure — power mixing Part A and Hi Performance Catalyst separately before combining at 2:1 ratio
Power mix each part separately, then combine. 2:1 ratio (A to Catalyst). Allow 15-min sweat-in before applying.

Application Equipment Guidelines

MethodEquipment Specification
Conventional SprayPressure pot with dual regulators · 3/8" I.D. min material hose · .070" I.D. fluid tip · Appropriate air cap · ~50 psi at gun · 10–20 lbs. pot pressure
Airless SprayPump ratio 30:1 min · 2.5 GPM min · 3/8" I.D. material hose · Tip size 0.017"–0.021" · Output PSI 1,500–2,300 · 60-mesh filter · PTFE packings recommended. Apply a mist bonding pass, allow ~1 minute, then crisscross multi-passes at a rapid rate maintaining a wet film. Repeat for second coat to achieve 8–14 mil total DFT. System max 18 mils.
BrushMedium bristle brush. Apply a very light crisscross coat — allow ~5 min — then apply a heavy crisscross coat. Flow the coating on rather than brush out. Yields approximately 2.5–3.0 mils DFT per coat.
RollerShort-nap synthetic roller with phenolic core. Not recommended for tank lining applications except when striping weld seams.

Compatible Substrates & Surface Preparation

Remove all oil and grease from the surface per SSPC-SP1 before any surface preparation. Substrate temperature must be above the dew point at all times — condensation on prepared steel causes flash rusting and adhesion failure.

SubstrateSurface Preparation Requirement
SteelSSPC-SP10 (Near-White Blast) · Dense angular profile: 2.0–3.5 mils (50–88 µm)
Concrete / CMU (Immersion)Concrete must be cured 28 days at 75°F (24°C) and 50% RH or equivalent. Prepare per ASTM D4258 (surface cleaning) and ASTM D4259 (abrading). Voids may require surfacing.
Non-Ferrous MetalsSSPC-SP16 or SSPC-SP17 as relevant · Anchor profile: 1.5 mils (37.5 µm) minimum. Remove all imbedded iron, chlorides, and contaminants that would interfere with performance.

Application Conditions

Condition Material Surface Ambient Humidity
Minimum50°F (10°C)50°F (10°C)50°F (10°C)0%
Maximum90°F (32°C)125°F (52°C)110°F (43°C)80%

Substrate temperature must be above the dew point. Condensation below the dew point causes flash rusting on prepared steel and interferes with adhesion. Special application techniques may be required outside these ranges.

Note: Before spray application, stripe brush all weld attachments and surface irregularities, thinned a minimum of 50% by volume, with Thinner 2, Thinner 76, or Thinner 225E.

Curing Schedule

Based on 4.0–6.0 mil DFT. Excessive humidity or condensation during curing can cause discoloration and surface haze — water wash any haze before recoating.

Surface Temp. Dry to Recoat Final Cure (Immersion) Max Recoat
50°F (10°C)36 Hours14 Days30 Days
60°F (16°C)24 Hours10 Days21 Days
75°F (24°C)12 Hours7 Days14 Days
90°F (32°C)6 Hours5 Days7 Days
⚠️ Food-grade exposures require force curing at 225°F (107°C) for four hours. Raise temperature 30°F for every 30 minutes until that temperature is reached. If maximum recoat times are exceeded, abrade by sweep blasting or sanding before recoating.

Good to Know Before You Buy

⚠️ Application Notes & Critical Requirements
  1. 15-minute sweat-in time is required after mixing — not optional. After combining Part A and the Hi Performance Catalyst at 2:1, allow the mixed material to sit for 15 minutes before application. Skipping this step can affect cure quality and film performance.
  2. Stripe brush all welds before spray application — this is a required step. Before any spray application, brush-apply a heavily thinned pass (minimum 50% by volume) over all weld seams, attachments, and surface irregularities. This ensures adequate film coverage in areas that spray cannot reach uniformly.
  3. Roller is not approved for tank lining applications. Use brush or spray only for tank linings. A short-nap synthetic roller with phenolic core is permitted for non-tank atmospheric applications only. This is a common field error on interior lining projects.
  4. Food-grade service requires force curing at 225°F for 4 hours. Ambient cure alone does not meet the FDA 21 CFR 175.300 requirement for direct aqueous food contact. Raise the substrate temperature to 225°F (107°C) in 30°F increments every 30 minutes, then hold for 4 hours.
  5. Flash point of Part A is 52°F (11°C) — flammable at ambient temperature. Both Part A and the Hi Performance Catalyst are flammable at normal application temperatures. Use non-ferrous tools, conductive footwear, and fully grounded electrical equipment in application areas. Ensure adequate ventilation in all enclosed or tank environments.
  6. Total system DFT must not exceed 18 mils (457 microns). Two coats at 4–6 mils each are required for optimum performance. A third coat may be applied for additional service life, but the cumulative DFT must not exceed 18 mils regardless of the number of coats.
  7. Hi Performance Catalyst shelf life is only 6 months — check dates before mixing. Part A lasts 12 months; the Hi Performance Catalyst (Part B) has a shorter 6-month shelf life. Always verify catalyst dates before mixing on long-stored inventory — an expired catalyst is the most common cause of cure failures on this product.
  8. Do not mix partial kits. The 2:1 ratio must be maintained precisely. Always use complete kit units. Mixing partial amounts will result in an incorrect ratio and compromised cure, adhesion, and chemical resistance.
  9. Maximum recoat windows are temperature-dependent and must be observed. At 75°F the maximum recoat window is 14 days; at 90°F it drops to 7 days. If the window is exceeded, abrade the surface by sweep blasting or sanding before applying subsequent coats — otherwise adhesion of the next coat is at risk.

Frequently Asked Questions — Phenoline 385/187 VOC

What is the coverage rate for Phenoline 385/187 VOC?
Phenoline 385/187 VOC covers 341 ft²/gal at 4.0 mils DFT and 227 ft²/gal at 6.0 mils DFT theoretical, based on 85% volume solids. Two coats are required for optimum performance — plan for a total system of 8–12 mils DFT. Maximum system DFT is 18 mils. Allow for loss in mixing and application.
What is the mix ratio and pot life?
Mix ratio is 2:1 by volume (Part A to Hi Performance Catalyst). Power mix each part separately, then combine and power mix until uniform. Allow a 15-minute sweat-in period before application. Pot life is 1¼ hours at 75°F and 2 hours at 60°F — shorter at higher temperatures. Pot life ends when the coating loses body and sags. Do not mix partial kits.
Is Phenoline 385/187 VOC FDA compliant for food and beverage use?
Yes — Phenoline 385/187 VOC meets FDA 21 CFR 175.300 requirements for direct aqueous food contact. It is suitable for food and beverage storage tanks, processing facilities, and beverage storage. Food-grade exposures require force curing at 225°F (107°C) for four hours — raise temperature 30°F for every 30 minutes until that temperature is reached.
What temperature resistance does Phenoline 385/187 VOC have?
Dry service: 400°F (204°C) continuous and 450°F (232°C) non-continuous. Under insulation: 400°F continuous and 450°F non-continuous, with outstanding wet/dry cycling resistance at these elevated temperatures. Immersion temperature resistance depends on the specific chemical exposure — consult Carboline Technical Service for guidance.
What surface preparation is required for steel?
Steel must be prepared to SSPC-SP10 (Near-White Blast) with a dense angular surface profile of 2.0–3.5 mils (50–88 µm). Remove all oil and grease per SSPC-SP1 before blasting. Substrate temperature must be above the dew point at all times to prevent flash rusting on prepared steel.
What chemicals is Phenoline 385/187 VOC resistant to?
Phenoline 385/187 VOC has broad chemical resistance including crude oil to 180°F, diesel oil, kerosene to 250°F, aviation gasoline, xylene, toluene, ferric chloride 50%, sodium hydroxide 50%, corn syrup, vegetable and corn oils, demineralized water, tap water to 200°F, beer, wine, and many more. Consult Carboline Technical Service or the product flyer for confirmation of specific chemical exposures and temperatures.
Why must I stripe brush welds before spray application?
Weld seams, edges, and surface irregularities create shadows and recesses that spray cannot coat uniformly. Before any spray application, Carboline requires a stripe brush pass over all weld attachments and surface irregularities, thinned at a minimum of 50% by volume. This ensures no voids or thin spots exist in the areas most vulnerable to corrosion, which is especially critical in immersion and chemical resistance applications.

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