Polypropylene (PP) strapping is the most widely used and cost-effective plastic banding material in commercial and industrial packaging. Manufactured from oriented polypropylene polymer, it is lightweight, flexible, and available in the widest range of widths, thicknesses, and coil lengths of any strapping material — making it the default specification for general packaging, bundling, and light-to-medium unitizing applications.

-   Lowest cost per foot of any strapping material — maximizes packaging budget for high-volume operations

-  High flexibility and elongation — conforms to irregular load shapes without load surface damage

-  Lightweight — reduces tool operator fatigue and simplifies coil handling on the production floor

-  Available in hand grade and machine grade formats — compatible with manual tools and automated strapping machines

-  Embossed or smooth surface options — embossed improves seal joint grip; smooth is standard for machine grade

-  Color options — black (standard hand grade) and white (standard machine grade and postal applications)

  Samuel Packaging Store supplies polypropylene strapping as a division of Samuel, Son & Co., with over 60 years of manufacturing and supply chain experience.

Samuel stocks polypropylene strapping across a full range of sizes for both hand grade and machine grade applications:

- 3/8" (9mm) — 0.024" thickness; machine grade white; 12,900 ft/coil; 8x8" and 9x8" core options; break strength approx. 300 lb

- 1/2" (12mm) — available in 0.021"–0.031" thickness; hand grade black; 7,200 ft and 9,000 ft coil lengths; 16x6" and 8x8" core; break strength 300–600 lb

- 1/2" (12mm) machine grade — 0.021"–0.024" thickness; white; 9,900 ft/coil; 8x8" and 9x8" core; 300 lb break strength

-  5/8" (16mm) — 0.030"+ thickness; hand grade black; 6,000 ft/coil; 16x6" core; break strength approx. 600 lb

- Postal kit — 1/2" x 3,000 ft polypropylene postal strapping kit, white, for USPS-compliant mail bundling applications

- Coils per pallet — typically 24–28 coils per pallet depending on coil size; contact for full pallet pricing

All coil core sizes (16x6", 8x8", 9x8") are designed to fit standard steel strap dispensers and coil carts. Confirm core compatibility with your dispensing setup before ordering.

Polypropylene strapping can be sealed using either metal open seals (for hand tools) or friction-weld sealing (for battery-powered STL tools). The seal method depends on the tool used — not the strap itself.

- Open metal seals — required when using manual tensioners and sealers or combination tools; Samuel supplies open PP/polyester seals in 1/2" and 5/8" widths; must match strap width exactly

- Friction-weld (no seal) — STL-series battery-powered combination tools create a heat-weld joint directly in the strap — no metal seals required; 75% joint efficiency

- Buckle sealing — not recommended for industrial applications; used in some manual light-duty bundling scenarios only

- Seal selection tip — if ordering hand tools alongside strap, add matching open seals to your order; if ordering STL battery tools, no seals are required

Samuel stocks open polypropylene/polyester seals as a separate product. Email storesupport@samuel.com to confirm the correct seal SKU for your strap width and hand tool model.

Yes — machine grade PP strapping is specifically designed for semi-automatic and fully automatic strapping machines. Samuel's PSG engineered strapping machines are compatible with machine grade PP strap in 3/8" and 1/2" widths, providing consistent, automated load securement at production-line speeds.

- Machine grade PP strap must match the machine's specified strap width, core size, and maximum thickness

- Core size compatibility is critical — confirm 8x8", 9x8", or 16x6" core against machine specifications before ordering

- PSG strapping machines provide uniform strap placement, consistent tension, and repeatable seal joint quality — eliminating operator variability

- Semi-automatic tabletop machines are available for medium-volume operations not requiring full in-line automation

For new PSG machine installations or existing machine upgrades, Samuel's engineering team provides full support from CAD design through on-site commissioning. Email storesupport@samuel.com to discuss your production line requirements.

The distinction between hand grade and machine grade PP strapping is critical for correct tool and equipment compatibility. Specifying the wrong grade will cause tool jams, inconsistent seal joints, and production downtime.

-   Hand Grade — designed for manual strapping using hand tools (tensioners, sealers, combination tools) or battery-powered STL tools; typically embossed surface for improved seal grip; available in black; core sizes 16x6" and 8x8" for dispenser compatibility

-  Machine Grade — designed for semi-automatic and fully automatic strapping machines; smooth or embossed surface; available in white; core sizes 8x8", 9x8", and 16x6" to match machine specifications; higher coil footage per coil for longer run times between coil changes

-  Break strength range — both grades available from approximately 300 lb to 600 lb break strength depending on width and thickness

-  Do not substitute — using hand grade strap in an automatic machine or machine grade strap with a hand tool will reduce seal joint efficiency and risk equipment damage

  Always confirm your strapping machine or tool model against the strap grade, core size, and maximum strap thickness before ordering. Contact storesupport@samuel.com if unsure.

Polypropylene strapping is the specification of choice for light-to-medium load bundling and unitizing across a wide range of industries. Its flexibility, low cost, and ease of use make it the highest-volume strapping material in commercial packaging.

- Corrugated box and carton bundling — securing stacked cartons for palletizing and storage

- Print and publishing — newspaper bundles, magazine packs, and book case bundling

- Food and beverage — produce case unitizing, bottle pack banding, and retail bundling

- Agriculture and horticulture — plant pot trays, nursery bundling, and garden center unit loads

- Postal and mail processing — USPS-compliant bundling using the postal strapping kit

- Retail and e-commerce distribution — general outbound parcel and unit load banding

- Light manufacturing — component bundling, assembly kit packaging, and parts consolidation

For loads exceeding 600 lb break strength requirements, or requiring sustained tension over long storage periods, upgrade to polyester (PET) or steel strapping. Contact Samuel's team for guidance.

Samuel's STL battery-powered combination tools are the standard choice for PP strapping in warehouse, distribution, and manufacturing floor environments — fully cordless, no compressed air required, and no metal seals needed. All tools use friction-weld technology to create a direct strap-to-strap heat joint.

- STL-3 Series — 1/2" to 5/8" PP or polyester strap, up to 0.040" thick; 75% joint efficiency; horizontal and vertical operation; ergonomic design for full-shift use

- STL-3HD — 5/8" to 3/4" PP or polyester strap; 75% joint efficiency; up to 1,000 lb tension force; 18V lithium-ion battery; real-time digital display for tension and weld time monitoring; soft mode for delicate loads

- STL-3SD — battery-operated combination tool for light-to-medium PP strapping applications; compact design for tight or awkward strapping positions

All STL battery tools operate in both horizontal and vertical orientations and feature ergonomic, well-balanced designs to reduce operator fatigue across a full production shift. No metal seals are required.

PP and PET strapping serve different load profiles. Choosing the wrong material leads to either load failure (under-specified) or unnecessary cost (over-specified). Use this decision framework:

- Choose PP when loads are light-to-medium weight, do not require high sustained tension, and cost-per-strap is the primary driver

-Choose PET when loads are medium-to-heavy, require tension recovery after impact or settling during transit, or are high-value goods requiring consistent load integrity

- PP has higher elongation than PET — it stretches under tension, making it better for irregular shapes but unsuitable for loads that must maintain constant containment force

- PP is more UV-sensitive than PET over extended outdoor storage — for long-term outdoor loads, PET or steel is the correct specification

- PP tools are lower cost to purchase and maintain than PET tools — relevant for operations running both strap type

If your load sits at the boundary between PP and PET, Samuel's technical team can advise on the correct material specification. Email storesupport@samuel.com with your load weight, dimensions, and transit conditions.