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Need to know what anti-static bags are, what it is used used for, FAQs and where to buy good quality antistatic bags at low prices. Find answers to all your questions of anti static bags or static shielding bags here.
If you need a specific size, thickness, colour or print, on anti static bags then please write or call to our top supplier who will give your inquiry immediate and personal attention, helping you to get the answers you need right.
What are anti static bags?
An anti static bag is a shipping bag for electronic devices sensitive to electrostatic discharge.
These bags are usually plastic and have a distinctive color: silvery for metalized PET film and other similar plastics and pink or black for polyethene. The polythene model may also come as foam or bubble wrap, either as sheets or bags. Because of the need for protection against mechanical damage as well as electrostatic damage.
How to measure gripseal anti static bags?
Types of anti static bags
Flat Anti-Static Poly Bags
Protect electronic components from static build-up. Constructed from pink anti-static polyethylene film. Keeps products clean and moisture free.
Gripseal anti static bags
Gripseal anti static bags protect electronic components from static build-up plus the security and convenience of a zipper top. The zipper top closes securely to protect against damage from dust and moisture. Electronics industry standard anti static self seal bags are ideal for electrical component packing
Anti-Static Poly Tubing
Make your own anti-static poly bags. Outstanding resistance to static discharge. Static dissipative, non-corrosive pink polyethylene is heat sealable. Seal with Poly Tubing Sealers.
Anti-Static Bubble pouchesProvides maximum protection against static discharge for circuit boards, relays, switches, resistors, controls and other static sensitive electronic components. Industrial bubble coated with a nylon barrier provides outstanding cushioning.
Question & Answer on Anti Static Bags
Question. I have two questions about one material. Anti-stat bags.
1. How effective are anti-stat bags with a relative humidity of less than 20 % and temperatures as high as 110 degrees Fahrenheit.
2. How do you put a spec on an anti-stat (ohms/sq. etc.) bag to ensure maximum protection and re-use?
Answer.The clear static dissipative polyethylene (PE) that high quality vendors use in their bags is far superior than the "topically treated washed" pink poly products.
Dissipative and metallized shielding bags are made with volume loaded polyethylene which cannot be washed off and is inherent in the film. The PE resin that we use and all the additives are developed to minimize contamination.
The anti static dissipative clear bags are pre-conditioned and tested at both 50% and 12.5% RH levels to have a surface resistivity of less than 1x10^11 ohms. (old nomenclature = ohms/square)
Question. What is the recommendation for determining when anti static bags are no longer any good?
Answer.All your answers are in the MIL-B-81705C Standard document. Specifically, an anti-static shielding bag (type III) can be considered no good if it meets any of the following conditions:
- the bag delaminates as defined in section 188.8.131.52 in MIL-B-81705C
- punctures over 6.0 lbs
- doesn't shield an ESD event under 30 kilovolts
- and has a surface resistivity greater than 1x10^12 ohms/sq both inside and out and less than 1x10^5 ohms/sq on the inside.
- has a static decay rate exceeding 2.0 seconds
- does not attenuate EMI at least 10 dB
In general, a metallized shielding bag may still shield if it has crinkled or acquired small holes because of the Faraday affect, but it is safer to discard these bags and err on the conservative side. It would probably cost more to test and qualify the bag then to replace it.
Because we mentioned anti static grip seal bags and anti static bubble bags we thought these websites to be useful for more information about each of the bags.
Please visit www.resealable-bags.co.uk for grip seal bags.
Please visit www.bubblebags2u.co.uk for bubble bags.