Belzona 1321 (Ceramic S-Metal)

Overview

Belzona 1321 (Ceramic S-Metal) is a two-component, non-machineable grade repair system based on a silicon steel alloy blended with high molecular weight reactive polymers, designed for resurfacing metals and offering protection against erosion-corrosion in fluid flow systems. Designed to operate under continuous immersion at temperatures up to 140°F (60°C), with higher temperature resistance achievable using additional coats. Applications include centrifugal and turbine pumps, heat exchangers, water box ends, butterfly and gate valves, propellers, Kort nozzles and pipe elbows. Badly eroded surfaces may first be rebuilt with Belzona 1311 (Ceramic R-Metal) prior to application.

Specifications

Color

Grey or blue

Strength

High

Base Type

Epoxy, silicon steel alloy-filled, ceramic

Cure Type

Room temperature cure; mix ratio 11:1 by weight (4:1 by volume)

Service Temperature

Dry stable to +392°F (+200°C); wet immersion to +140°F (+60°C), up to +194°F (+90°C) with 3+ coats

Fixture Time

Working life 30 minutes at 77°F (25°C)

Full Cure Time

Full loading/immersion 24 hours at 77°F (25°C); chemical contact 1.5 days

Certifications

ISO 9001:2008, ISO 14001:2004, U.K. WRC, American Bureau of Shipping, Bureau Veritas

Technical Information

• Compressive strength 13,000 psi (ASTM D695)
• Shore D hardness 80 (ASTM D2240)
• Tensile shear on stainless steel 3,000 psi (ASTM D1002)

Typical Applications

• Resurfacing pump casings, impellers and valve bodies
• Heat exchanger, water box and tube sheet protection
• Erosion-corrosion protection for pipe elbows and Kort nozzles

Industries

Technical Documents