Polypropylene (PP) Balls
Polypropylene balls have excellent chemical resistance, low density, and the highest melting point of the volume thermoplastics. An excellent electrical insulator with low dielectric constant and loss factors. Highly resistant to acids, alkalis, alcohols and many inorganic chemicals. Non-toxic. FDA approved.
Chemistry
Specific Gravity: 0.90 (lightest of all plastic types)
Rockwell Hardness: R80-102
Tensile Strength: High
Characteristics
Lightest plastic ball type. Excellent electrical insulator. Non-toxic. Resistant to acids, alkalis, and alcohols. Highest melting point of volume thermoplastics.
Corrosion Resistance
Excellent chemical resistance. Highly resistant to acids, alkalis, alcohols and many inorganic chemicals.
Typical Hardness
Rockwell R80-102.
Ball Sizes
Available in sizes 1/16″ to 2.0″.
Available in grades 0 through IV (inch and metric). Finishes: matte, rough, polished.
Industries Using Polypropylene (PP) Balls
Chemical Processing (acids, alkalis, alcohols, inorganic chemicals), Electronics (electrical insulation, low dielectric applications), Food and Beverage (non-toxic, FDA approved contact surfaces), Industrial and Manufacturing (low-density, chemical-resistant applications)
All standard sizes available for immediate delivery
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Health and Beauty
Roll-on applicators, dispensing equipment, cosmetic mixing, color-coded HBA components
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Pumps and Valves
Check valves, pump seats, flow control devices, slide and rolling applications
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Chemical Processing
Highly corrosive environments, acid and caustic media, no known chemical attack applications
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Electronics
Electrical insulation, low dielectric constant applications, precision assemblies
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Consumer Goods
Ball floats, consumer product components, color-coded applications, identification uses
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Food and Beverage
FDA-approved applications, flow control, processing equipment, non-toxic contact surfaces
Lead Times
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Standard in-stock components are available for immediate shipment. Lead times for non-stock and custom orders are determined based on specific part size, material, and required quantity.
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Hartford Technologies specializes in high-volume production runs and industrial applications. We have a $400 minimum order value for all standard in-stock bearing balls. For custom-engineered parts and assemblies, the minimum is determined by the complexity and volume of the specific requirement.
