Belzona 1321
Ceramic S-Metal
Erosion-corrosion resistant ceramic coating for continuous immersion in fluid handling equipment.
A 2-part erosion-corrosion resistant ceramic coating for continuous immersion service up to 60°C (140°F).
- SeriesBelzona 1000 Series
- Approvals1
- Documents6
Overview of Belzona 1321
A two component coating system designed to operate under continuous immersion at operating temperatures up to 140°F (60°C). Exhibits excellent erosion-corrosion resistance and is resistant to a broad range of aqueous solutions, hydrocarbons and process chemicals.
Belzona 1321 (Ceramic S-Metal) is also used as a high strength structural adhesive for bonding or for creation of irregular load bearing shims with good electrical insulation characteristics. It can also be used as an injection material for the shimming and bonding of components.
Key Benefits
Outstanding resistance to erosion damage in flowing fluid and abrasive environments
Outstanding resistance to corrosion in salt spray and chemical environments
Exceptional compressive strength for load-bearing applications and demanding mechanical environments
Excellent resistance to a wide range of chemicals including aqueous solutions, hydrocarbons, and process chemicals
Easy to mix and apply without specialist tools
Application Areas
What this product handles, grouped by equipment area — each links to the full application.
Pumps
4 applications- Heat exchanger & water box repairHeat exchangers and water boxesLearn more
- Pump impeller & casing efficiencyPumps - efficiency enhancement of impellers and casingsLearn more
- Valve, pipe & tube sheet protectionValves, pipes and tube sheetsLearn more
- Propeller & Kort nozzle coatingPropellers and Kort nozzlesLearn more
Heat Exchangers
2 applications- Heat exchanger water boxesWaterboxes take the inlet jet from the cooling water pump and turn it through 90 to 180 degrees before delivery to the tube bundle, concentrating erosion-corrosion on pa…Learn more
- Marine heat exchangersKeel coolers and box coolers exchange engine heat directly to the surrounding seawater, exposing the tube bank to chloride attack, biofouling growth, and cavitation at t…Learn more
Solids Handling Machinery
2 applications- Solids handling machinery, chutes, hoppers, mill linersSliding abrasion from bulk materials wears chutes, mill liners, and hopper interiors faster than any single replacement cycle can keep up with, particularly in steel, ce…Learn more
- General machinery protectionErosion and corrosion rarely arrive separately on process equipment, with flow-induced metal loss exposing fresh steel that the chemistry then attacks faster than either…Learn more
Tanks & Chemical Containment Areas
2 applicationsElectrical & Power Generation Equipment
1 applicationFans, Blowers & Compressors
1 applicationHeat Exchangers Tube Sheets
1 applicationHVAC & Refrigeration Equipment
1 applicationValves, Pipes & Fittings
1 applicationTechnical Data
Mechanical Properties
- Compressive Strength (68°F cure)
- 13,127 psi (90.5 MPa)
- Compressive Strength (212°F cure)
- 17,743 psi (122.3 MPa)
- Compressive Modulus
- 2.36 × 10⁵ psi (1,628 MPa)
- Tensile Strength (68°F cure)
- 4,177 psi (28.80 MPa)
- Tensile Strength (212°F cure)
- 5,510 psi (37.99 MPa)
- Young's Modulus (68°F cure)
- 9.87 × 10⁵ psi (6,807 MPa)
- Flexural Strength (68°F cure)
- 9,400 psi (64.81 MPa)
- Shore D Hardness
- 84
- Impact Resistance (Izod, reverse notched, 68°F)
- 54.3 J/m
Adhesion
- Tensile Shear, Mild Steel
- 2,710 psi (18.68 MPa)
- Tensile Shear, Stainless Steel
- 3,180 psi (21.92 MPa)
- Tensile Shear, Copper
- 3,050 psi (21.03 MPa)
- Tensile Shear, Aluminum
- 2,090 psi (14.41 MPa)
- Pull-Off Adhesion (Grit Blasted Steel, 68°F)
- 6,330 psi (43.64 MPa)
- Pull-Off Adhesion (Grit Blasted Steel, 212°F)
- 6,290 psi (43.37 MPa)
- Cleavage Strength (Grit Blasted Steel)
- 1,634 lbf/in
- Tensile Shear Fatigue (4.1 MPa)
- >1M cycles
Heat & Environmental Resistance
- Heat Distortion Temperature (68°F cure)
- 118°F (48°C)
- Heat Distortion Temperature (212°F cure)
- 189°F (87°C)
- Dry Heat Resistance
- 428°F (220°C)
- Wet Heat Resistance
- 140°F (60°C) continuous immersion
- Steam Out Resistance
- 410°F (210°C)
- Salt Spray Resistance
- 5,000 hours, no visible corrosion
Abrasion Resistance
- CS17 Wheels (Dry)
- 14 mm³ loss per 1,000 cycles
- H10 Wheels (Wet)
- 178 mm³ loss per 1,000 cycles
Working Life
- 77°F (25°C)
- 30 minutes
Curing Time
At 50°F (10°C)
- No loading or immersion
- 8 hours
- Machining and/or light loading
- 12 hours
- Full mechanical or thermal loading
- 3 days
- Immersion in chemicals
- 5 days
At 59°F (15°C)
- No loading or immersion
- 5½ hours
- Machining and/or light loading
- 9 hours
- Full mechanical or thermal loading
- 2 days
- Immersion in chemicals
- 3 days
At 68°F (20°C)
- No loading or immersion
- 4 hours
- Machining and/or light loading
- 6 hours
- Full mechanical or thermal loading
- 1½ days
- Immersion in chemicals
- 2 days
At 77°F (25°C)
- No loading or immersion
- 3½ hours
- Machining and/or light loading
- 4½ hours
- Full mechanical or thermal loading
- 24 hours
- Immersion in chemicals
- 1½ days
Service Temperature Limits
- Lower temperature limit
- -40°C (-40°F)
- Upper temperature limit (dry)
- 60°C (140°F)
- Upper temperature limit (wet)
- 60°C (140°F) continuous immersion
Mixing & Application
Certifications & Approvals
Product PDFs
Gallery
Videos
Frequently Asked Questions
What is Belzona 1321 (Ceramic S-Metal) used for?
Belzona 1321 (Ceramic S-Metal) is a ceramic-filled epoxy fluid coating designed for the protection of metal surfaces against erosion-corrosion and chemical attack. It is widely used on pumps, fan blades, valves, heat exchangers, and other equipment exposed to flowing fluids.
How is Belzona 1321 applied?
Belzona 1321 is a fluid-grade material applied by brush or roller as a protective coating. It is typically applied in two coats, with the second coat applied within the overcoat window specified in the IFU. Surface preparation by abrasive blasting to a near-white finish is recommended for optimal adhesion.
What chemicals does Belzona 1321 resist?
Belzona 1321 has excellent chemical resistance against a broad range of chemicals including dilute acids, alkalis, salt solutions, and hydrocarbons. Refer to the Belzona Chemical Resistance Chart for specific data on individual chemicals and concentrations.
Related Products
Need Belzona 1321 applied
on your asset?
Our Louisiana team supplies and applies it — with 24-hour support, no shutdown, no hot work.