Belzona 1391T
Key
Hand-applied high temperature immersion coating for service up to 130°C (266°F).
A 2-part hand-applied high temperature ceramic-filled coating for continuous immersion service up to 130°C (266°F).
- SeriesBelzona 1000 Series
- Approvals2
- Documents6
Overview of Belzona 1391T
A two-component, hand-applied ceramic-filled epoxy coating system designed to operate under continuous immersion at operating temperatures up to 266°F (130°C). Suitable for steaming out up to 410°F (210°C).
Belzona 1391T provides erosion and corrosion resistance with excellent resistance to a wide range of aqueous solutions, hydrocarbons and process chemicals. Applied using simple hand tools to areas requiring maximum erosion resistance, with a long overcoat window and rapid force cure capability.
Key Benefits
Outstanding performance under elevated temperature conditions including dry heat and steam exposure
Outstanding resistance to erosion damage in flowing fluid and abrasive environments
100% solids formulation reduces health and safety risks in confined spaces with no shrinkage on cure
Exceptional compressive strength for load-bearing applications and demanding mechanical environments
Applied using simple hand tools for areas requiring maximum erosion resistance without specialist equipment
Application Areas
What this product handles, grouped by equipment area — each links to the full application.
Separators
6 applications- Condensate tanks & extraction pumpsBoiler feed water systems and condensate tanksLearn more
- Evaporators, de-aerators & autoclavesDe-aerators and evaporatorsLearn more
- Heat exchangers & condensersStorage tanks and condensersLearn more
- Oil/gas & water separatorsSeparators and slug catchersLearn more
- Scrubbers & absorber towersAbsorbers and scrubbersLearn more
- Seawater filters & amine systemsSea water filters and MEA/MDEA systemsLearn more
Process Vessels
2 applications- Hot tanks and vesselsContinuous immersion above 200°F is the operating envelope where conventional epoxy linings break down and where lining-system selection has to be matched to the specifi…Learn more
- Pulp & paper, wastewater equipmentKraft digesters and surrounding chemical recovery equipment carry sulfate-rich black liquor at high temperature, a service that thins ordinary tank linings and accelerat…Learn more
Chutes & Hoppers
1 applicationElectrical & Power Generation Equipment
1 applicationHeat Exchangers
1 applicationHeat Exchangers Tube Sheets
1 applicationTanks & Chemical Containment Areas
1 applicationValves, Pipes & Fittings
1 applicationTechnical Data
Mechanical Properties
- Compressive Strength (68°F cure)
- 13,287 psi (91.6 MPa)
- Compressive Strength (212°F cure)
- 32,133 psi (221.6 MPa)
- Compressive Modulus
- 2.16 × 10⁵ psi (1,488 MPa)
- Tensile Strength (68°F cure)
- 4,487 psi (30.94 MPa)
- Young's Modulus (68°F)
- 8.94 × 10⁵ psi (6,164 MPa)
- Flexural Strength (68°F)
- 5,700 psi (39.3 MPa)
- Flexural Strength (212°F)
- 7,100 psi (48.95 MPa)
- Shore D Hardness (68°F)
- 80
- Shore D Hardness (212°F)
- 86
- Impact Resistance (Izod, reverse notched, 68°F)
- 54.8 J/m
Adhesion
- Tensile Shear (Grit Blasted Steel, 68°F)
- 3,200 psi (22.06 MPa)
- Tensile Shear (Grit Blasted Steel, 212°F)
- 2,800 psi (19.30 MPa)
- Pull-Off Adhesion (Grit Blasted Steel, 68°F)
- 3,770 psi (25.99 MPa)
- Pull-Off Adhesion (Grit Blasted Steel, 212°F)
- 4,260 psi (29.51 MPa)
- Cathodic Disbondment (194°F)
- 0.13 inch (3.3 mm) average diameter
Heat & Environmental Resistance
- Heat Distortion Temperature (68°F cure)
- 127°F (53°C)
- Heat Distortion Temperature (212°F cure)
- 284°F (140°C)
- Dry Heat Resistance
- 482°F (250°C)
- Wet Heat Resistance
- 266°F (130°C) continuous immersion
- Steam-out Resistance
- 96 hours at 410°F (210°C)
- Atlas Cell Immersion
- No rusting or blistering after 6 months at 266°F (130°C)
Abrasion Resistance
- CS17 Wheels (Dry, 194°F cure)
- 31 mm³ loss per 1,000 cycles
- H10 Wheels (Wet, 68°F cure)
- 320 mm³ loss per 1,000 cycles
Electrical Properties
- Dielectric Strength
- 25.0 kV/mm
Working Life
- 68°F (20°C)
- 45 minutes
Cure Times by Temperature
At 50°F (10°C)
- Time until inspection
- 72 hours
- Time until full service
- Post cure required
- Dry post cure (if required)
- 72 hours
- Wet post cure (if required)
- 28 days
At 68°F (20°C)
- Time until inspection
- 24 hours
- Time until full service
- 28 days
- Dry post cure (if required)
- 24 hours
- Wet post cure (if required)
- 7 days
At 86°F (30°C)
- Time until inspection
- 12 hours
- Time until full service
- 10 days
- Dry post cure (if required)
- 12 hours
- Wet post cure (if required)
- 48 hours
At 104°F (40°C)
- Time until inspection
- 5 hours
- Time until full service
- 24 hours
- Dry post cure (if required)
- 5 hours
- Wet post cure (if required)
- 12 hours
Service Temperature Limits
- Lower temperature limit
- -40°C (-40°F)
- Upper temperature limit (dry)
- 250°C (482°F)
- Upper temperature limit (wet)
- 130°C (266°F) continuous immersion
Mixing & Application
Certifications & Approvals
Product PDFs
Gallery
Videos
Frequently Asked Questions
What is Belzona 1391T used for?
Belzona 1391T is a high temperature ceramic-filled epoxy coating designed for the protection of metal substrates against corrosion and erosion-corrosion in immersion service at elevated temperatures. It is commonly used on heat exchangers, condensers, separators, and process pipework.
Is Belzona 1391T suitable for continuous immersion?
Yes. Belzona 1391T is specifically formulated for continuous immersion service in aqueous and hydrocarbon environments at elevated temperatures. Consult the Product Specification Sheet for the exact temperature limits and approved service media.
How is Belzona 1391T applied?
Belzona 1391T is brush-applied in two coats over a properly abrasive-blasted substrate. The thickness, working life, and overcoat windows specified in the Instructions for Use must be followed to achieve the design performance.
Related Products
Need Belzona 1391T applied
on your asset?
Our Louisiana team supplies and applies it — with 24-hour support, no shutdown, no hot work.