Zinc PYRION™ 48% MPF is an aqueous dispersion of zinc pyrithione antimicrobial that is highly effective for water-based applications where low-leaching and long-term protection are required.
Zinc PYRION™ 48% MPF is a micronized aqueous suspension of zinc pyrithione (pyrithione zinc, zn-pyrithione, ZnPT, ZnP) in water. Zinc pyrithione has low water solubility so this dispersed version allows for easier dissolution and handling for water-based applications. Zinc pyrithione exhibits broad-spectrum antimicrobial activity and inhibits the unwanted growth of fungi, yeast, mold, gram-positive and gram-negative bacteria, and algae. Zinc pyrithione is low leaching for longer-term protection and heat stable to 240°C (464°F). Zinc pyrithione can transchelate in the presence of heavy metals, such as iron and copper, causing discoloration of the treated fluid. Zinc pyrithione is also sensitive to light and strong oxidizing and reducing chemicals.
Zinc PYRION™ 48% MPF is approved as an antimicrobial agent for a wide range of applications, including industrial adhesives, caulks and sealants, grouts and patching compounds, latex paints and coatings, joint compounds and wood fillers, rubbers and thermoplastic resins, building materials, laundered fabrics, and adhesives used for food packaging. Zinc pyrithione is compatible with most common polymers. Treat rates for zinc pyrithione differ by composition, application and susceptibility to microbial attack. It is recommended to test biocide levels at multiple treat rates (for example, 3000, 4000, and 5000 ppm) to gauge efficacy in particular applications. Industry-standard laboratory testing is available from Janssen to help with formulation questions.
Zinc PYRION™ 48% MPF is not an approved chemical through ChemPoint for personal care and cosmetic grade applications which include anti-dandruff shampoo and skin care products.
Appearance: Off-white suspension
Density at 21°C/70°F: 1.28 g/cm3 (10.68 lb/gal)
Viscosity at 21°C/70°F: 157.5 mPa·s at 100s-1
Color: L*: min. 75, a*: -3 to +1, b*: max. 5
Particle size: D100 ≤ 5 μm; D90 ≤ 1 μm
pH, 5% w/w in pH 7 water: 6.5–9.0
Zinc content: 9.3–11.3% w/w
Must store above 10° (50°F)
Degradation occurs at temperatures above 240°C
CAS No. 13463-41-7
Primary Chemistry: Zinc pyrithione, pyrithione zinc, ZnPT, ZnP
EPA registered
Exceptional microbial control in a wide range of applications
Aqueous dispersion for easy handling
Fine particle size
High heat stability
Low leach
Efficacy testing available from Janssen PMP
Difficulty dissolving zinc pyrithione in water
Bacterial, fungal, and algal growth
Ineffective and short-term microbial protection
Industrial flooring adhesives
Caulks and sealants
Grouts and patching compounds
Latex paints
Joint compounds
Glazing compounds
Wood fillers
Rubber bands
Carpet fibers and carpet backings
Rubber and rubber-backed bath mats
Foam underlay for carpets
Cushion and mattress foam stuffing
Wire and cable insulation
Vinyl, linoleum, and synthetic floor coverings
Wall coverings
Plastic furniture
Athletic flooring and mats
Mattress liners and covers
Molding
Gaskets
Weatherstripping
Furniture cushions
Boat covers
Tents
Awnings
Nonsurgical rubber gloves
Garbage bags
Refuse containers
Garden hoses
Non-potable water pipes
Ductwork
Air filters
Air filtration components and media
Shower curtains
Sponge and fiber mops
Household sponges
Toilet brush holders
Toothbrush holders
Scrub brushes
Sink mats and drain boards
Storage containers
Soap dish holders
Toilet seats
Footwear
Laundered fabrics
Drywall, gypsum, and cellulose-derived building materials
Adhesives used for food packaging
Janssen PMP offers several solutions to microbial growth in paints and coatings using their zinc and sodium pyrithione additive technology.
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