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Carboline Hydroplate 6500 - Epoxy Lining for Severe Wastewater Protection

Hydroplate 6500 - Epoxy Lining for Severe Wastewater Protection

by Carboline
$1,063.46 - $1,063.46
$1,063.46
$1,063.46 - $1,063.46
$1,063.46

Hydroplate 6500 is an ultra-high build, 100% solids epoxy lining engineered by Carboline for superior protection in aggressive, hydrogen sulfide-rich municipal and industrial wastewater environments. This glass-flake- and ceramic-reinforced formulation delivers exceptional chemical resistance, outstanding abrasion resistance, and remarkably low permeability — making it the premier choice for immersed steel and concrete in severe wastewater, water transmission, and corrosive industrial service.  

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Key Features:

  • Ultra-High Build — Up to 250 Mils in a Single Coat: Batch mix formulation achieves 20–250 mils DFT per coat with standard airless spray equipment, eliminating multiple coats and dramatically reducing application time and project downtime.
  • Passes ASTM G210 Severe Wastewater Analysis Test (SWAT): Glass flake and ceramic reinforced for outstanding chemical resistance to hydrogen sulfide, biogenic acids, and aggressive wastewater compounds in the most demanding H2S environments.
  • Fast Return to Service: Cure to immersion service in water and wastewater environments in as little as 10 hours at 75°F — minimizing infrastructure downtime for operating wastewater facilities.
  • NSF/ANSI/CAN 600 Certified: UL-classified for potable water exposure — certified for tanks greater than 200,000 gallons at 1–2 coats under 125 mils. Valid when manufactured at a certified location.
  • Low-Temperature Cure: Surface application minimum of 30°F (–1°C) enables year-round application even in cold-climate wastewater infrastructure projects.
  • Low Application Pressure: Achieves 250 mils per coat at spray pressures as low as 2,500 PSI — reducing applicator fatigue, equipment wear, and pump stress compared to competitive products requiring 5,500–6,000 PSI.
  • Meets AWWA C210: Qualified for water transmission pipe, ductile iron pipe, and immersed infrastructure meeting AWWA C210 requirements.
  • NSF/ANSI/CAN 600: UL-classified for potable water tank exposure (tanks >200,000 gallons, 1–2 coats <125 mils, cure to service 1 day). Valid when manufactured at a certified location.
  • AWWA C210: Meets the requirements of AWWA C210 for liquid-applied internal linings for steel water transmission pipe and related infrastructure.
  • ASTM G210 (SWAT): Passes Severe Wastewater Analysis Test for use in aggressive municipal and industrial wastewater environments.

Common Industry Applications:

  • Municipal Wastewater Treatment: Clarifiers, digesters, lift stations, collection systems, and manholes in hydrogen sulfide-rich, highly corrosive environments.
  • Water Transmission & Pipe Lining: Ductile iron pipe, water transmission lines, and immersed steel and concrete structures requiring AWWA C210 compliance.
  • Potable Water Infrastructure: Water treatment facilities and tanks greater than 200,000 gallons requiring NSF/ANSI/CAN 600 certification.
  • Industrial & Severe Service Facilities: Immersed steel and concrete in chemical processing, industrial wastewater, and other aggressive corrosive environments demanding long-term durability.

Hydroplate 6500 is a TWO-COMPONENT SYSTEM SOLD IN 4.5-GALLON  KITS, INCLUDING PARTS A & B.

Product type: Ultra High Build Epoxy Lining
Finish: Gloss
Applied via: Airless Spray (batch mix single-leg or plural component), or trowelable mortar
Mix ratio: 2:1 by volume (Part A to Part B)
Pot life: 30 minutes at 75°F (24°C)
Theoretical Coverage: 1,604 ft²/gal at 1 mil · 80 ft²/gal at 20 mils · 6 ft²/gal at 250 mils
Cleanup: Thinner #2 or #76

Looking for an ultra-high build epoxy lining for severe wastewater? Contact us today to discuss your project:
(800) 567-5358

Size: 4.5-Gallon
Coverage Calculator

Cleanup Solvents

Solvent Use
Thinner #2 Equipment cleanup after application
Thinner #76 Equipment cleanup after application

Hydroplate 6500 is 100% solids — thinning is not normally required for application. Equipment cleanup requires Thinner #2 or #76, not water. Read the Part A and Part B SDS before handling. Source: Carboline Hydroplate 6500 PDS (November 2025, doc 5326).

Recommended Coating Systems

Single-Coat Immersion Lining — Steel or Concrete
Self-priming on steel and most concrete · Source: Hydroplate 6500 PDS, doc 5326
Immersion Lining Hydroplate 6500 20–250 mils DFT · batch mix airless spray · cure to service 10h @ 75°F
Outgassing Concrete — Primer + Immersion Lining
For concrete with outgassing risk or high moisture vapor transmission · Source: Hydroplate 6500 PDS, doc 5326
Primer Carboguard 510 or Carboguard 1340 series Anti-outgassing / MVT primer · topcoat within 24 hours
→
Immersion Lining Hydroplate 6500 20–250 mils DFT · apply within 24h of primer
Potable Water Tank Lining — NSF/ANSI/CAN 600
UL certified · tanks >200,000 gal · 1–2 coats <125 mils total · Source: Hydroplate 6500 PDS, doc 5326
Primer (if needed) Carboguard 1340 series High MVT concrete or outgassing risk only
→
NSF Lining Hydroplate 6500 1–2 coats <125 mils total · cure 1 day · NSF/ANSI/CAN 600
Clarifier / Tank Restoration — Full System
Fort Bend County MUD 57, Houston TX · Spring 2025 · Source: Carboline Case Study 00-00-0226-815
Crack Injection Prime Flex 920 Low-viscosity polyurethane · seals active leaks
→
Concrete Resurfacing Carbocrete 4020 High-strength repair mortar · restores profile
→
Immersion Lining Hydroplate 6500 150 mils DFT · H2S / severe wastewater
→
UV Topcoat (above waterline) Carbothane 133 HB Aliphatic polyurethane · UV protection
Immersion Lining + UV Finish — Exposed Metal Components
Specified for clarifier metal components · Source: Carboline Case Study 00-00-0226-815
Immersion Lining Hydroplate 6500 20–250 mils DFT · glass flake reinforced
→
UV Topcoat Carbothane 134 HG High-gloss aliphatic polyurethane · UV stable

Frequently Purchased Together

Hydroplate 6500 Ultra High Build Epoxy Lining for Severe Wastewater by Carboline

Product Specs — Hydroplate 6500

Hydroplate 6500 — Two-Component Ultra High Build Epoxy Lining by Carboline.
A 100% solids, glass flake and ceramic reinforced epoxy lining engineered for severe wastewater service. Applies at 20–250 mils DFT in a single coat using standard batch mix airless spray equipment — eliminating multiple coats and minimizing facility downtime. Delivers outstanding corrosion protection and chemical resistance in aggressive hydrogen sulfide (H2S) environments on both concrete and steel. Cure to immersion service in 10 hours at 75°F. NSF/ANSI/CAN 600 certified. Meets AWWA C210. Passes ASTM G210 SWAT.

✓ NSF/ANSI/CAN 600 Certified  •  ✓ AWWA C210  •  ✓ Passes ASTM G210 (SWAT)  •  ✓ 100% Solids / VOC 13 g/l  •  ✓ Up to 250 Mils Single Coat  •  ✓ Return to Service 10 hrs @ 75°F

✏️ Need a project quote? Request Online

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

Hydroplate 6500 by Carboline

Hydroplate 6500 two-component ultra high build epoxy lining by Carboline for severe wastewater service — 4.5 and 15 gallon kits
Hydroplate 6500 — Ultra High Build Epoxy Lining (4.5-Gal & 15-Gal Kits)

Shipping Map — Carboline Delivery Timing

US regional warehouse map showing estimated shipping transit times for Carboline Hydroplate 6500 orders from Material Warehouse
Typical transit times vary by destination zone. Most orders ship within 2–3 business days.

Shipping & Packaging

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

Carboline orders ship from regional warehouses nearest to your location.

Most orders ship within 2–3 business days of order placement.

4.5-Gallon Kit: 53 lbs (24 kg)
Part A: Short-filled 5-gal bucket  •  Part B: Short-filled 3-gal bucket

15-Gallon Kit: 174.5 lbs (79.15 kg)
Part A: (2) 5-gal buckets  •  Part B: 5-gal bucket

Mixing Instructions

Two-component system — 2:1 by volume (Part A to Part B).

IMPORTANT: Power mix each component separately, then combine and power mix until homogeneous. Do not mix partial kits.

Color verification: Part A is white (0800). Part B is buff (0200). The mixed coating should be uniform buff. Stop immediately if color variation is detected during plural component application.

Trowelable mortar: Mix up to 80 lbs of 30–50 mesh, clean, dry silica sand into a 4.5-gallon kit for use as a mortar on concrete rehabilitation projects.

Pot life: 30 minutes at 75°F (24°C). Consult Carboline Technical Service for techniques to maximize pot life in hot conditions.

Airless Spray Equipment

ParameterRequirement
Pump Ratio60:1 (minimum)
GPM Output2.5 (minimum)
Material Hose3/8" I.D. (minimum)
Tip Size0.025"–0.035"
Output PSI>2,500 PSI
PackingsPTFE recommended
Max Material Heat90°F (32°C) for plural component

Plural component (fixed 2:1 ratio) equipment may be used when material cannot be sprayed within pot life. Rig requires heated hoppers, heated hoses, at least two static mixers, and a 15–25 ft 3/8" I.D. whip hose. Pre-mix components before loading into plural equipment.

Application Conditions

Condition Material Surface Ambient Humidity
Minimum 50°F (10°C) 30°F (−1°C) 30°F (−1°C) 0%
Maximum 100°F (38°C) 125°F (52°C) 110°F (43°C) 85%

Substrate temperature must be above the dew point. Condensation below the dew point causes flash rusting on prepared steel and interferes with adhesion. Source: Carboline Hydroplate 6500 PDS (November 2025, doc 5326).

Coverage Rates

DFT Range:
20–250 mils per coat (batch mix airless spray)
20–100 mils per coat (plural component equipment)

100% solids — no volume loss. Allow for loss in mixing and application.

DFT Coverage
1 mil (25 microns)1,604 ft²/gal (39.4 m²/l)
20 mils (500 microns)80 ft²/gal (2.0 m²/l)
250 mils (6,250 microns)6 ft²/gal (0.2 m²/l)

Source: Carboline Hydroplate 6500 PDS (November 2025, doc 5326).

Curing Schedule

Surface Temp. Dry to Touch Dry to Handle
30°F (−1°C)36 Hours52 Hours
50°F (10°C)18 Hours28 Hours
60°F (16°C)12 Hours26 Hours
75°F (24°C)7.5 Hours9.5 Hours
90°F (32°C)3.5 Hours5 Hours

Cure to immersion service: 10 hours at 75°F. Film hardness Shore D ≥75 and/or passing a 25 MEK double-rub test confirm readiness for immersion service. Typical range: 10–72 hours depending on conditions.

Maximum recoat window: 30 days at 75°F. Reduces by half for each 15°F increase in surface temperature. If exceeded, de-gloss and roughen by light sanding before topcoating.

Source: Carboline Hydroplate 6500 PDS (November 2025, doc 5326).

Surface Preparation by Substrate

Substrate Preparation
Steel SSPC-SP10 (near-white blast) minimum · Min 3-mil (75-micron) dense sharp anchor profile per ASTM D4417 · Repair and re-blast defects exposed by blasting
Concrete Per NACE No. 6/SSPC-SP13, ICRI CSP 3-5 profile · Remove all laitance and loose concrete · Tolerates SSD (saturated surface dry) surfaces · Consult Carboline for specifics
Non-Ferrous Metals Dense angular 1.5–3 mil profile · SSPC-SP16 (atmospheric) or SSPC-SP17 with min 3-mil dense angular profile (immersion)
Ductile / Cast Iron (Immersion & Buried) Abrasive blast per NAPF 500-03-04
Ductile / Cast Iron (Non-Immersion) Solvent cleaning per NAPF 500-03-01

Primer: Self-priming on steel and most concrete. For concrete with outgassing risk or excessive moisture vapor transmission, use Carboguard 1340 series or Carboguard 510. Apply Hydroplate 6500 within 24 hours of primer application.

Source: Carboline Hydroplate 6500 PDS (November 2025, doc 5326).

Technical Specifications

PropertyValue
Generic TypeUltra high build epoxy
ComponentsTwo-component (Part A + Part B)
Mix Ratio2:1 by volume (Part A to Part B)
Color / FinishBuff (0200) · Gloss
Solids by Volume100%
VOC (As Supplied)13 g/l
DFT — Batch Mix20–250 mils (508–6350 microns) per coat
DFT — Plural Component20–100 mils (500–2500 microns) per coat
Pot Life30 minutes at 75°F (24°C)
ReinforcementGlass flake and ceramic reinforced
ThinningNot normally required
CleanupThinner #2 or #76
Flash Point (Setaflash)Part A: >200°F (93°C) · Part B: >200°F (93°C)
Shelf LifePart A: 12 months · Part B: 12 months (at 75°F, sealed)
Storage Temp & Humidity40–100°F (4–43°C) · 0–90% RH · Store indoors
Shipping Weight4.5-Gal Kit: 53 lbs (24 kg) · 15-Gal Kit: 174.5 lbs (79.15 kg)
CertificationsNSF/ANSI/CAN 600 · AWWA C210 · ASTM G210 (SWAT)
UL Potable Water RatingTanks >200,000 gal · 1–2 coats <125 mils · Cure 1 day*

*NSF/ANSI/CAN 600 valid when manufactured at a certified location. Source: Carboline Hydroplate 6500 PDS (November 2025, doc 5326).

Hydroplate 6500 in the Field — Case Study

📋 Emergency Clarifier Tank Restoration — Houston, Texas (Spring 2025)
Owner:
Fort Bend County Municipal Utility District 57
Asset:
Water clarifier tank, wastewater treatment plant
Challenge:
Severe cracking, deep fractures, and porous holes throughout unlined concrete surface. Second clarifier diverting flow created urgent return-to-service pressure.
System Applied:
Prime Flex 920 (crack injection) → Carbocrete 4020 (concrete resurfacing mortar) → Hydroplate 6500 at 150 mils DFT → Carbothane 133 HB (UV topcoat above water line)
Result:
Clarifier returned to service within six weeks of restoration start. Full system delivered lasting protection in aggressive wastewater environment.

Source: Carboline Case Study 00-00-0226-815 (Spring 2025)

Good to Know Before You Buy

⚠️ Important Application Notes
  1. Pot life is 30 minutes at 75°F — plan your batches accordingly. Hydroplate 6500 is a high-solids, fast-reacting epoxy. Once mixed, it must be applied within 30 minutes at 75°F. In hot conditions, batch sizes may need to be reduced. Consult Carboline Technical Service for maximizing pot life.
  2. Power mix each component separately before combining. This is critical. Do not combine and mix immediately — pre-mixing each component separately ensures homogeneous color and chemistry before the reaction begins. Stop application if mixed color is not uniform buff.
  3. This product can cure down to 30°F surface temperature. The surface and ambient minimum are both 30°F (−1°C), making Hydroplate 6500 suitable for cold-climate wastewater rehabilitation projects where other linings would need to be postponed.
  4. Apply within 24 hours of primer. If a primer (Carboguard 1340 series or Carboguard 510) is used for outgassing prevention, Hydroplate 6500 must be applied within 24 hours of primer application. Do not allow the primer to cure beyond this window before topcoating.
  5. Do not heat plural component material above 90°F. When using plural component equipment, heat the material to a maximum of 90°F (32°C). Exceeding this temperature negatively impacts film build properties and may compromise the lining.
  6. Verify cure readiness before immersion service. Beyond time-based cure schedules, film hardness (Shore D ≥75) or passing a 25 MEK double-rub test are reliable field indicators that the lining is ready for immersion. Typical cure-to-service range is 10–72 hours depending on conditions — do not rush.
  7. Maximum recoat window is 30 days at 75°F. This window cuts in half for every 15°F increase in surface temperature. If exceeded, de-gloss and mechanically abrade the surface before recoating. Do not simply topcoat over an over-cured lining.
  8. Steel requires SSPC-SP10 (near-white blast) — not commercial blast. This is a more demanding preparation standard than many other coatings require. A minimum 3-mil dense sharp anchor profile per ASTM D4417 is also required. Defects exposed by blasting must be repaired and re-blasted.
  9. Concrete must tolerate aggressive wastewater — verify the substrate. The PDS references NACE No. 6/SSPC-SP13 preparation standards. The product can tolerate SSD (saturated surface dry) concrete, but consult Carboline Technical Service for substrates with active moisture transmission or contamination from past chemical exposure.
  10. Cleanup requires Thinner #2 or #76 — not water. Unlike waterborne coatings, Hydroplate 6500 requires solvent cleanup. Ensure adequate ventilation and appropriate PPE when handling thinners. Read both Part A and Part B SDS documents before handling.

Frequently Asked Questions — Hydroplate 6500

What is Hydroplate 6500?
Hydroplate 6500 is a two-component, 100% solids ultra high build epoxy lining from Carboline engineered for severe wastewater service. Glass flake and ceramic reinforced, it delivers outstanding chemical resistance to hydrogen sulfide (H2S), biogenic acids, and aggressive wastewater compounds on both concrete and steel substrates. It applies up to 250 mils DFT in a single coat using standard batch mix airless spray equipment at spray pressures as low as 2,500 PSI — significantly lower than competitive products requiring 5,500–6,000 PSI.
What is the mix ratio and pot life for Hydroplate 6500?
Mix ratio is 2:1 by volume (Part A to Part B). Power mix each component separately before combining, then power mix until homogeneous. Pot life is 30 minutes at 75°F (24°C). Consult Carboline Technical Service for techniques to extend pot life in warm conditions. Available in 4.5-gallon and 15-gallon kits.
How thick can Hydroplate 6500 be applied in a single coat?
20–250 mils (508–6,350 microns) per coat with batch mix airless spray equipment. When using plural component equipment, the range is 20–100 mils (500–2,500 microns) per coat. Theoretical coverage: 1,604 ft²/gal at 1 mil · 80 ft²/gal at 20 mils · 6 ft²/gal at 250 mils. 100% solids — no volume loss.
How quickly can Hydroplate 6500 return to service?
Hydroplate 6500 can return to immersion service in water and wastewater environments in as little as 10 hours at 75°F. At 90°F: dry to touch in 3.5 hours, dry to handle in 5 hours. At 75°F: dry to touch in 7.5 hours, dry to handle in 9.5 hours. Film hardness (Shore D ≥75) or passing a 25 MEK double-rub test confirm the lining is ready for immersion service. Typical cure-to-service range is 10–72 hours depending on conditions.
Is Hydroplate 6500 certified for potable water?
Yes. Hydroplate 6500 is certified for potable water exposure to NSF/ANSI/CAN 600. The UL Potable Water Certification covers tanks greater than 200,000 gallons, applied at 1–2 coats under 125 mils total DFT, with a cure-to-service time of 1 day. Valid when manufactured at a certified Carboline location.
What surface preparation does Hydroplate 6500 require?
Steel: SSPC-SP10 (near-white blast) minimum, with a minimum 3-mil (75-micron) dense sharp anchor profile per ASTM D4417. Defects exposed by blasting must be repaired and re-blasted.
Concrete: Prepare per NACE No. 6/SSPC-SP13, ICRI CSP 3-5 profile. This product tolerates SSD (saturated surface dry) surfaces.
Ductile/cast iron (immersion): Abrasive blast per NAPF 500-03-04.
Non-ferrous metals: Dense angular 1.5–3 mil profile via SSPC-SP16 (atmospheric) or SSPC-SP17 with min 3-mil profile (immersion).
Does Hydroplate 6500 require a primer?
Self-priming on steel and most concrete surfaces. For concrete substrates with outgassing risk or excessive moisture vapor transmission, a primer such as Carboguard 1340 series or Carboguard 510 is recommended. Hydroplate 6500 must be applied within 24 hours of any primer application.
Can Hydroplate 6500 be used as a trowelable mortar?
Yes. Mix up to 80 lbs of 30–50 mesh, clean, dry silica sand into a 4.5-gallon kit to convert Hydroplate 6500 into a trowelable mortar. This makes it suitable for concrete rehabilitation and resurfacing applications. In the Fort Bend County MUD 57 clarifier restoration (Spring 2025), a combination of Carbocrete 4020 mortar and Hydroplate 6500 at 150 mils returned a severely deteriorated clarifier to service within six weeks.
What spray equipment is needed to apply Hydroplate 6500?
Airless spray (batch mix): Pump 60:1 minimum · 2.5 GPM output minimum · 3/8" I.D. hose minimum · 0.025"–0.035" tip · output >2,500 PSI · PTFE packings recommended.
Plural component: Fixed 2:1 ratio equipment with heated hoppers, heated hoses, at least two static mixers, and a 15–25 ft 3/8" I.D. whip hose. Pre-mix components before loading. Heat material to a maximum of 90°F (32°C).

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