18 x 16" - Instapak Quick® RT Heavy-Duty Expandable Foam Bags (Bulk Pack)
- Protect anything and everything, anywhere!
- No equipment required! Completely portable!
- Works the same as Instapak Quick® without the need of a preheating warming unit.
- Recommended temperature range is 65° - 90° F.
- Chemicals are activated in the bag so no clean up is required.
- Heavy-Duty Bags are recommended for shipments 40-80 lbs.
Stock Number | 1 | 2 | 3+ | Add to Cart |
|---|---|---|---|---|
| Stock NumberIQRT25B | 1$980.17 | 2$942.48 | 3+$904.78 | Add to Cart |

Bag Number: #25
Bag Size W x L: 18 x 16"
Recommended Box Size: 10 x 10 x 10"
Bags Per Case: 150
Order in Multiples of: 1
Freight Class: 70
Weight: 54.18 EA
NMFC Code: 149265-9
Ships Parcel: Yes
Instapak Quick® RT Heavy-Duty Expandable Foam Bags are an 18 x 16" format sold in bulk cases of 150. The Heavy-Duty formula is specifically engineered for shipments in the 40–80 lb range, delivering a higher-density foam expansion than standard Instapak Quick® bags — making it the appropriate choice when contents are heavy, fragile, or irregularly shaped.
The room-temperature activation system requires no preheating unit, warming cabinet, or dedicated equipment, keeping these bags practical at any fixed packing station, overflow line, or off-site location. Chemicals activate entirely inside the sealed bag, so foam never contacts packing surfaces — eliminating cleanup and reducing material waste on the floor. Industries relying on this format include electronics distribution, automotive parts fulfillment, medical device shipping, and high-value e-commerce.
Activation performs reliably between 65°F and 90°F, covering standard conditioned warehouse environments year-round. Each bulk case contains 150 bags and ships via parcel carrier, supporting both routine replenishment and high-frequency packing operations.
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