Shrink Wrap vs Stretch Film: Complete Packaging Comparison [2026]

Walk through any warehouse or distribution center and you will see two films doing two very different jobs. Stretch film wraps pallets — the clear, clingy film spiral-wrapped around stacked cartons to hold them as a unit during transport. Shrink wrap seals individual products or bundles — the film that tightens around a bottle multipack or a retail display when heat is applied.

Both are plastic films. Both protect goods. But the materials, application methods, equipment requirements, and cost structures are fundamentally different. Choosing the wrong one wastes money or, worse, fails to protect the product. This guide breaks down both from a manufacturer and wholesale buyer perspective.

How Stretch Film Works

Stretch film is a linear low-density polyethylene (LLDPE) film manufactured to be elastic. When pulled during application, the film elongates 100–300% of its original length and attempts to return to its original dimensions, creating a sustained inward force that holds the wrapped load together.

The cling comes from two sources: the inherent tackiness of LLDPE (especially cast film) and, on many commercial grades, a cling additive (polyisobutylene or similar) on one or both sides. This combination means stretch film sticks to itself without adhesive and does not need heat to activate.

Key specifications for wholesale buyers:

• Gauge (thickness): 60–120 gauge for machine application, 70–80 gauge for hand application. One gauge = 0.254 microns. An 80 gauge film is approximately 20 microns.
• Stretch rate: 200–300% for machine-grade film, 100–150% for hand-grade. Higher pre-stretch means less film per pallet.
• Width: 18–20 inches (450–500 mm) is standard for hand rolls. Machine rolls run 20–30 inches.
• Cling: One-sided cling (standard for machine use — prevents adjacent pallets from sticking) or two-sided cling (hand rolls where film-to-film contact is always intentional).
• Color: Clear (standard, allows barcode scanning and visual inspection), black (concealment for high-value loads), tinted (color coding by SKU or destination).

Applications: Pallet unitizing (the primary use, >90% of stretch film volume), bundling, and minor surface protection.

How Shrink Wrap Works

Shrink wrap is a polymer film — PVC, polyolefin, or polyethylene — manufactured with molecular orientation that makes it contract when heated. The film is loosely wrapped or sealed around a product, then passed through a heat tunnel or exposed to a heat gun. At the activation temperature (typically 130–180°C depending on material), the film shrinks 30–60% and conforms tightly to the product shape.

The result is a sealed, form-fitting package that provides tamper evidence, moisture protection, and a professional retail appearance that stretch film cannot achieve.

Shrink film materials compared:

PVC shrink film: The most widely used shrink material worldwide. Excellent clarity, high shrink rate (40–60%), low cost. Ideal for bottle wraps, multipack bundles, and general retail packaging. Temperature sensitivity: PVC becomes brittle below 0°C and can develop “dog ears” (unshrunk corners) if tunnel temperature is uneven. SUNWRAP manufactures PVC shrink film in 12–50 micron gauges for food and industrial applications.

Polyolefin (POF) shrink film: Higher clarity and gloss than PVC, no odor during shrinking, FDA-compliant for direct food contact. Costs 20–40% more than PVC. Preferred for food wrapping, cosmetic packaging, and pharmaceutical applications where PVC odor or compliance concerns exist.

Polyethylene (PE) shrink film: Thicker (50–200 microns), stronger, used for heavy items — beverage cases, building materials, lumber, and industrial equipment. Low clarity compared to PVC/POF. The workhorse for heavy-duty transit packaging.

Head-to-Head Comparison

Purpose: Stretch film unitizes and secures. Shrink wrap seals and protects.

Heat required: Stretch film — no. Shrink wrap — yes (heat tunnel or heat gun).

Equipment cost: Stretch film — $200–500 for a hand dispenser, $3,000–15,000 for a machine wrapper. Shrink wrap — $1,000–5,000 for a heat gun setup, $5,000–30,000+ for an L-bar sealer with heat tunnel.

Material cost per unit: Stretch film is lower per pallet ($1.50–3.00 per pallet at machine rates). Shrink wrap is higher per individual package ($0.02–0.15 per unit depending on size and material).

Appearance: Stretch film is functional — visible spiral wrap lines, not retail-grade. Shrink wrap is presentation-grade — smooth, tight, transparent or printed.

Tamper evidence: Stretch film provides none. Shrink wrap provides strong tamper evidence — the film must be cut or torn to access the product.

Weather protection: Stretch film is water-resistant but not sealed — moisture can enter through the top and bottom of a pallet. Shrink wrap fully encapsulates the product when properly sealed.

When to Use Each

Use stretch film when: You are wrapping pallets for warehouse storage or shipping. The goal is load containment and stability, not individual product presentation. You want the lowest cost per pallet. You need to access individual boxes on the pallet without unwrapping the entire load (cut and rewrap is simple with stretch film).

Use shrink wrap when: You are packaging individual products or multipack bundles for retail sale. Tamper evidence is required (pharmaceuticals, food, electronics). You need a sealed package for moisture or dust protection. Product presentation matters — retail shelf appearance, display packaging, gift sets.

Use both when: Most distribution operations use stretch film for pallet loads AND shrink wrap for individual product or case-level packaging. They are complementary, not competing.

Sourcing and Pricing for Wholesale Buyers

Stretch film wholesale pricing (FOB China):

• Hand grade 80 gauge, 18” × 1,500 ft: $6–10/roll at container volume
• Machine grade 80 gauge, 20” × 5,000 ft: $12–20/roll
• Pre-stretched film 7µm: $15–25/roll (less film used per pallet offsets higher unit cost)

Shrink film wholesale pricing (FOB China):

• PVC shrink film 15µm, 300mm wide: $1,200–1,800/ton
• POF shrink film 19µm: $2,200–3,000/ton
• PE shrink film 100µm: $1,500–2,000/ton

SUNWRAP manufactures PVC cling film and PVC shrink film with annual capacity exceeding 8,000 tons. For stretch film, PVC shrink film, or custom packaging film requirements, contact our export team for samples and FOB pricing.

---

Related reading:

• PVC Cling Film vs PE Cling Film: Which Should You Import?
• Top 10 Cling Film Manufacturers in China