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FAQ Categories: SIGMA

Fluoroseal Joint Sealant Tape

Fluoroseal joint sealant tape is manufactured from 100% expanded PTFE. The material offers good creep and cold flow resistance. Fluoroseal possesses excellent chemical resistance. It is also weather resistant and will not deteriorate with age. The sealant tape is supplied with a self adhesive strip and is available in a range of widths from 3mm […]

SIGMA 600

Developed specifically for petrochemical and chemical use. FDA compliant for both low and high bolt loads. Is non contaminating with lower creep an cold flow. A single gasket replacement for metallic and non-metallic flange applications. Designed to replace older conventional gasket technologies including skived PTFE, semi-restructured PTFE, and restructured PTFE. Its unique composition and uniform […]

SIGMA 588

MATERIAL: Biaxially orientated PTFE COLOR: Off white (pigment free) Most compressible PTFE sheet without filler; biaxially orientated PTFE core with soft surfaces for higher, controlled compressibility. Highly conformable surface layers designed for glass-lined, FRP, ceramic, plastic and low bolt load applications Modified PTFE inner core design to maximize sealability and prevent blow-out FDA compliant

SIGMA 533

MATERIAL: Biaxially orientated PTFE containing barium sulfate COLOR: Off white (pigment free) Standard compression sheet material reinforced with barytes (barium sulphate) filler. SIGMA 533 is the preferred choice for sealing concentrated alkalis and is also compatible with Aqueous Hydrofluoric Acid. Restricted resistance to concentrated mineral acids. Standard compressibility Ideal for sealing food, pharmaceutical and other […]

SIGMA 511

MATERIAL: Biaxially-orientated PTFE containing silica COLOR: Fawn Standard compression sheet material reinforced with a silica filler. Intended for use with concentrated acids (except hydrofluoric acid) and with most general aggressive chemicals: also suitable for medium concentrations of alkalis. Standard compressibility Strong acids (except hydrofluoric) to general chemicals Can be used for all concentrations of sulfuric […]

SIGMA 500

MATERIAL: Biaxially orientated PTFE containing hollow glass microspheres COLOR: Blue Sheet material with higher compression specifically formulated for use on glass lined, plastic or ceramic flanges. Also suitable for use on flanges which are non-parallel, damaged or distorted. Compatible with acids and alkalis at all but the highest concentrations. Enhanced compressibility is achieved by the […]

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