Problem with plastic containers

[Guest guest]

Hi, I have a friend that's in the cleaning supplies business and he

asked me if I can do something about his plastic container problem. I

went down to his shop to find that most of his containers are caved

in. Now my question what can cause this ? Most of his products are

water based (>60%) and alcalin (>11pH) and packed in standard

polyethylene.

I'm thinking that it might be some sort of oxidative reaction or

something like that.

Any ideas ?

Thanks in advance, RJ

[Guest guest]

Could it be something as simple as tempature changes? I keep my

empty soda bottles (yup - caffiene addict) to return on my porch.

When it gets either hot or cold, I can hear them expand and

contract. Just a (low-tech) thought!

Tracey =^..^=

[Guest guest]

Could it be something as simple as tempature changes? I keep my

empty soda bottles (yup - caffiene addict) to return on my porch.

When it gets either hot or cold, I can hear them expand and

contract. Just a (low-tech) thought!

Tracey =^..^=

[Guest guest]

Hi:

Are those bottles cylendrical?

This is fairy common with polyethylene bottles especially round (cylinder

bottle). It is called " panelling " . It also happens with " oval " bottles but it

is not that obvious.

This may be caused by some of the volatile ingredients such as alcohol type of

solvent (common ones are ehanol (drinking alcohol and isopropyl alcohol (rubbing

alcohol) ) & critus oil etc.

Talk to the bottle suppliers for solution (there is solutions but you may have

to purchase a large qty). The least thing you want to do is reformulation (if

the formulation works why change).

Norman

Rolland wrote:

Hi, I have a friend that's in the cleaning supplies business and he

asked me if I can do something about his plastic container problem. I

went down to his shop to find that most of his containers are caved

in. Now my question what can cause this ? Most of his products are

water based (>60%) and alcalin (>11pH) and packed in standard

polyethylene.

I'm thinking that it might be some sort of oxidative reaction or

something like that.

Any ideas ?