Replies to this message

: Shelf Life of the product
: Shelf Life of the product -- frrizvi	Post Reply	Top of thread	Engineering Forum

Posted by: AVIB ® 12/09/2009, 09:22:59 Author Profile eMail author Edit

Hi , I don't understand ? You want to the shelve life of the adhesive or plastic parts ? Now , the easy part is the adhesive.. acc. do manufacture data . Regarding the plastic parts: 1-If you inject the parts ask the manufacturer of the raw material for this . 2- If you purchase the parts , ask the Injection shop for this including direction how to store the parts . Pay attention that if you are dealing with Nylon , you will need to store the parts in a very dry atmospher . Good Luck , AVIB

Post Reply Tell a Friend (must be logged in) Alert Admin About Post

Where am I? Original Top of thread

|   |

: Shelf Life of the product
: Shelf Life of the product -- frrizvi	Post Reply	Top of thread	Engineering Forum

Posted by: Marky ® 12/08/2009, 09:47:40 Author Profile eMail author Edit

Hi and welcome to the forum. You might want the assistance of an independent testing lab. While you're testing for shelf life you may want think about environmental testing...How Long Will It Last In It's Environment?

Post Reply Tell a Friend (must be logged in) Alert Admin About Post

Where am I? Original Top of thread

| |

: : Shelf Life of the product
: : Shelf Life of the product -- Marky	Post Reply	Top of thread	Engineering Forum

Posted by: frrizvi ® 12/10/2009, 04:35:18 Author Profile eMail author Edit

we do have all the environmental test equipments in the company. I was asking how can we define the shelf life of the plastic and elastomer products? We do molding in-house for plastic and elastomer and buy raw material. We can ask raw material supplier but that would be the shelf life for the raw material not our molded product. After molding there is always change in chemical properties of the material. Adhesive is very straight forward, it can be asked from supplier. In fact i am looking for a kind of establishing a guidelines line to specify product shelf life that can be used internal document and to commuicate whenever it is asked by our customers.

Post Reply Tell a Friend (must be logged in) Alert Admin About Post

Where am I? Original Top of thread

| |

: : : Shelf Life of the product
: : : Shelf Life of the product -- frrizvi	Post Reply	Top of thread	Engineering Forum

Posted by: AVIB ® 12/28/2009, 10:47:18 Author Profile eMail author Edit

Hello again , After you send the product you cannot give any guide lines . Your Customer can use it as he likes in the field . This is why I do not recommend giving shelf life of a product you cannot controll . As for injected product that are stored at your place , you should ask the material manufacturer for this specifiing that you need the data for injected part . I have asked this from Bayer and Sabic and the information is available. Hope it helps , AVIB

Post Reply Tell a Friend (must be logged in) Alert Admin About Post

Where am I? Original Top of thread

| |

: : : : Shelf Life of the product
: : : : Shelf Life of the product -- AVIB	Post Reply	Top of thread	Engineering Forum

Posted by: frrizvi ® 01/04/2010, 00:38:40 Author Profile eMail author Edit

Thanks for your reply. Suppliers do not entertain this request and they said we are responsible for our raw material as it will become your product after molding and you have to specify at your own. However, it could be referenced from our raw material shelf life. Anyway i managed to find a way to do so. Accelrated Sgelf life testing is the way to test the part at elevated temperature for calculated time period which would simulate shelf lofe testing. Thanks to all.

Post Reply Tell a Friend (must be logged in) Alert Admin About Post

Where am I? Original Top of thread

| |

: : : : : Shelf Life of the product
: : : : : Shelf Life of the product -- frrizvi	Post Reply	Top of thread	Engineering Forum

Posted by: Marky ® 01/04/2010, 07:19:16 Author Profile eMail author Edit

Thanks for the update....glad everything worked out ok. Happy New Year!!

Post Reply Tell a Friend (must be logged in) Alert Admin About Post

Where am I? Original Top of thread

|   |