Returns

At Mylarlabs, every order is evaluated through an upfront verification process. Because printed Mylar bags are manufactured to order or prepared in specific batches, we do not accept returns for change of mind or subjective design preferences. However, we stand firmly behind our manufacturing quality.

Pre-Production Proofing

Before any custom production begins, our team provides a 1:1 digital dieline proof confirming dimensions, bleed margins, color separation, and zipper positioning. Mass production commences only after your written approval, eliminating dimensional and layout misunderstandings.

Manufacturing Defect Warranty

We provide a 100% Manufacturing Quality Warranty covering factory production defects. If your order exhibits any of the following verifiable manufacturer errors, we will provide a free reprint or issue a corresponding credit/refund:

• Significant printing errors or text misregistration caused by our prepress plates that deviate from the approved digital dieline proof;
• Structural lamination failures, such as delamination of the barrier film layers;
• Defective, split, or unsealed zipper tracks that fail to close properly upon arrival;
• Incorrect bag dimensions deviating beyond standard manufacturing tolerances (±2mm).

Claim Procedure & Exclusions

To submit a warranty claim, notify us by email at [email protected] within 7 business days of delivery. Please include your Inquiry Reference number, a description of the defect, and clear high-resolution photographs or video showing the affected batch.

Exclusions: This warranty does not cover typographical or artwork errors present in your approved source file, minor color variations within standard CMYK/Pantone industrial tolerances (±5%), or damage resulting from improper heat-sealing equipment, post-delivery puncture by sharp foreign objects, or carrier transit mishandling.

Production Terms & Claim Resolution

• Physical Proofs: Physical pre-production samples are available upon request for custom print orders. Proof fees and sampling lead times will be confirmed in your written quote.
• Changes After Approval: Because prepress preparation and raw material allocation begin immediately upon proof approval, any design changes or order cancellations requested before production begins are subject to plate-making and material costs already incurred. Once mass production has commenced, orders cannot be changed or cancelled.
• Quantity Variance: Custom manufacturing runs are subject to standard industrial yield variance; invoices are adjusted based on actual yield, with overruns invoiced at the agreed per-bag rate or underruns credited or refunded accordingly.
• Unopened Stock Orders: For standard, unprinted stock designs, unopened bags in original carton packaging may be returned within 7 business days of delivery. The buyer is responsible for return shipping costs and an applicable restocking fee. Custom-printed bags are manufactured to order and cannot be returned for change of mind.
• Returning Affected Goods: If physical inspection of defect samples is required during a claim investigation, the buyer prepays return shipping for the sample bags. Upon factory confirmation of a manufacturing defect, Mylarlabs fully reimburses the shipping cost.
• Response Time: We acknowledge all warranty claims within 1–2 business days of receipt and provide a formal resolution plan within 3 business days.
• Liability Cap: Mylarlabs’ maximum total liability for any defective order is strictly capped at the amount paid by the customer for the affected goods. We do not accept liability for indirect, incidental, or consequential commercial losses.