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Knight Materials
PYROFLEX® Acid-Resistant Membranes
One of the most unique protective lining systems in the market today is PYROFLEX® acid-resistant membrane system. This system is a flexible, uniformly thick sheet membrane used as an impervious barrier between acid-resistant brick and corrosion-prone steel, alloy or concrete shell. This non-porous, non-aging thermoplastic:
- Completely seals steel or concrete from chemical corrosion
- Directly adheres to metal or concrete without adhesives
- Provides continuous, uniformed lining (no lap joints)
- Is highly resistant to thermal decomposition
- Applies easily with no curing or aging process required
- Acts as a deformation-absorbing element between masonry and sheathing steel or concrete shell
- Can be readily repaired if damaged, reducing downtime costs
- Is spark-tested to assure barrier protection
PYROFLEX® 500 Acid-Resistant Membrane System
PYROFLEX® 500 acid-resistant membrane system is a fiber-reinforced composite applied in sheet form by fusing directly to a properly cleaned and primed surface without the use of an adhesive. It is an extremely dense material that absorbs less than 0.1% of boiling water. Because of its thermal stability, it has an outstanding performance record in masonry-lined towers.
PYROFLEX® DUPLY Lining
PYROFLEX® DUPLY lining consists of PYROFLEX membrane with an overlay providing additional protection.
Additionally, we offer other lining materials to meet customer specifications, like:
- Rhepanol (a graphite-filled polyisobutylene rubber sheet product)
- KNIGHT-GARDTM Protective Systems
- Glass-reinforced Resin Systems
- Fluoropolymers
Knight Material Technologies Autoclave
See an animated hydrometallurgy autoclave with the essential materials for lining systems. Knight Material Technologies (KMT) is the world’s leading provider of hydrometallurgical brick linings, mortars and acid-resistance membranes. KMT’s proven solutions protect autoclave steel shells providing thermal, mechanical and chemical protection in elevated temperature and pressure environments.
Frequently Asked Questions
Materials with good chemical resistance include polymers like polyethylene, polypropylene, and polyvinyl chloride (PVC), as well as high-performance plastics like PTFE and PVDF. Additionally, certain metals and alloys, such as titanium and Hastelloy offer excellent chemical resistance in various corrosive environments. The choice of material depends on the specific chemicals and concentrations involved in the application.