Belzona 1821
Fluid Metal Anti-Slip Bonding Resin
Fluid metal binder for creating non-slip surfaces with anti-slip aggregate on machinery, walkways, and access areas.
A 2-part fluid metal binder for bonding anti-slip aggregate to create durable non-slip surfaces with excellent corrosion resistance.
- SeriesBelzona 1800 Series
- Documents5
Overview of Belzona 1821
A two-component fluid grade material based on silicon steel alloy blended within high molecular weight reactive polymers and oligomers. Belzona 1821 (Fluid Metal) is designed for creating positive grip surfaces on machinery and equipment by bonding Belzona Supergrip or Surefoot aggregate to the substrate, producing durable non-slip surfaces with excellent adhesion, wear and chemical resistance. Also serves as a high strength structural adhesive and casting material.
Key Benefits
Outstanding resistance to erosion damage in flowing fluid and abrasive environments
Excellent resistance to a wide range of chemicals including aqueous solutions, hydrocarbons, and process chemicals
Outstanding resistance to corrosion in salt spray and chemical environments
Easy to mix and apply without specialist tools
100% solids formulation reduces health and safety risks in confined spaces with no shrinkage on cure
Application Areas
What this product handles, grouped by equipment area — each links to the full application.
Floor Problem Areas
5 applications- Anti-slip & non-slip surfacingNon-slip blinding over coated bridge decks, walkways, and stair treadsLearn more
- General sealing & bonding resinStandalone two-component epoxy resin for sealing and bonding applicationsLearn more
- Casting & repair of gasket sealsCreation or casting of gasket sealsLearn more
- Positive-drive roller surfacingPositive-drive surfaces on conveyor drive pulleys and rollersLearn more
- Slip-resistant flooring locationsQuarry tile, wooden decks, and fiberglass boat decksLearn more
Tanks & Chemical Containment Areas
3 applicationsTechnical Data
Mechanical Properties
- Compressive Strength (24h, 68°F)
- 10,106 psi (69.7 MPa)
- Compressive Strength (212°F cure)
- 13,957 psi (96.2 MPa)
- Tensile Strength
- 6,180 psi (42.61 MPa)
- Flexural Strength
- 8,900 psi (61.4 MPa)
- Young's Modulus (Tensile)
- 7.79 × 10⁵ psi (5,369 MPa)
- Elongation
- 1.03%
- Shore D Hardness (68°F cure)
- 85
- Heat Distortion Temperature (68°F cure)
- 117°F (47°C)
- Heat Distortion Temperature (212°F cure)
- 151°F (66°C)
- Dry Heat Resistance (degradation)
- 392°F (200°C)
Adhesion
- Tensile Shear, Mild Steel
- 3,000 psi (20.6 MPa)
- Tensile Shear, Aluminum
- 1,500 psi (10.3 MPa)
- Pull-Off, Blasted Mild Steel
- 2,300 psi (15.9 MPa)
- Pull-Off, Blasted Aluminum
- 1,800 psi (12.4 MPa)
- Pull-Off, Manually Abraded Aluminum
- 1,900 psi (13.1 MPa)
Abrasion Resistance (Taber)
- CS17 Wheels (Dry)
- 40 mm³ loss per 1,000 cycles
Corrosion Protection
- Salt Spray (ASTM B117)
- No visible corrosion after 5,000 hours
Chemical Resistance
- Resistant to inorganic acids and alkalis at concentrations up to 20%
- Resistant to hydrocarbons, mineral oils, and lubricating oils
- Resistant to many other commonly found chemicals
Working Life
- 77°F (25°C)
- 20 minutes
Peak Exotherm
Cure times will vary depending on ambient conditions; consult the Belzona IFU for specific details.
- Temperature
- 259–288°F (126–142°C)
- Time to peak
- 26–32 minutes
Service Temperature Limits
- Lower temperature limit
- -40°C (-40°F)
- Upper temperature limit (dry)
- 200°C (392°F)
- Heat Distortion Temperature (212°F cure)
- 151°F (66°C)
Mixing & Application
Product PDFs
Gallery
Frequently Asked Questions
What is Belzona 1821 (Fluid Metal) used for?
Belzona 1821 (Fluid Metal) is a 2-part fluid-grade material used as a binder to bond Belzona Supergrip or Surefoot anti-slip aggregate to metal substrates, creating durable non-slip surfaces on tank tops, walkways, vehicle step-ups, fire escapes, brake test rollers, and similar equipment.
How does Belzona 1821 create non-slip surfaces?
Belzona 1821 is applied as a fluid coating, then anti-slip aggregate (Belzona Supergrip or Surefoot) is broadcast into the wet resin. After cure, the aggregate is locked into the resin matrix, creating a durable textured surface that provides positive grip even when wet or oily.
What corrosion protection does Belzona 1821 provide?
Belzona 1821 has excellent corrosion resistance — no visible corrosion after 5,000 hours of salt spray exposure (ASTM B117) — and is resistant to inorganic acids and alkalis at concentrations up to 20%, hydrocarbons, mineral oils, and lubricating oils.
Related Products
Need Belzona 1821 applied
on your asset?
Our Louisiana team supplies and applies it — with 24-hour support, no shutdown, no hot work.