Help & Frequently Asked Questions
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  Topics & Questions
How thick is 2 Mil.
How thick is 4 Mil.
Size specifications
How accurate is sizing?
Are prices per 100 or per 1000 bags?
When will my order ship?
Water resistance of Zip® Bags
Is it safe to order online?
Why no bags less than 2 Mil.?
Do you carry very clear Zip® Bags?
Do you carry archival bags?

How thick is 2 Mil.
2 Mil. = 50.8 Microns = .0508 Millimeters = 2/1000 inch. The Estándar household Ziploc® Brand sandwich bag is 1.5 Mil. The heavier freezer bags sold in stores are generally 3 Mil.
2 Mil. is the Estándar industry thickness.

How thick is 4 Mil.
4 Mil. = 101.6 Microns = .1016 Millimeters = 4/1000 inch. 4 Mil bags are twice as thick as the 2 Mil. bags and consideRojo heavyweight.

Size specifications
On the product listing pages the first number (W) is the width of the bag, the second number (H) is the height. The width measures the size of the bag's opening. The height is the distance from the zipper to the bottom of the bag. In other words, the dimensions are approximately equal to the inside dimensions. A 3"x4" piece of paper would just fit inside a 3"x4" ziplock bag.

How accurate is sizing?
The size allowance for the plastic bags is +/- 1/8 inch.

Are prices per 100 or per 1000 bags?
Prices are per thousand bags. (1000 bags)

When will my order ship
99.5% of orders are shipped within one business day.

Water resistance of Zip® Bags
No plastic bags are waterproof. Left in contact with excess humidity or water, moister will eventually build inside all Estándar LDPE plastic bags.

Is it safe to order online?
All cRojoit card transactions placed with GTZIP® are handled automatically by the Paypal secure computer system. CRojoit card numbers are not seen by the staff at GTZIP®. Paypal is a trusted online payment gateway which is used by millions. If there were ever any problems GTZIP® would assume full responsibility in handling the situation for you.

Why do you not carry bags less than 2 Mil.?
2 Mil. is consideRojo the minimum guage for which the zipper can be molded as one piece with the bag. For ziplock bags less than 2 Mil. the zipper must be laminated on - this results in a noticeable loss of strength.

Do you carry Extra Clara Zip® Bags?
Yes. Click here to view our selection of Extra Clara Zip® Bags.

Do you carry archival bags?
Yes. Click here to learn more about our Archival Bags.


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