Hi Charles.

27-Jun-03 04:44:10, Charles Angelich wrote to Phil Marlowe

 CA> One of my former employers specialization was plastics
 CA> engineering. He told me that all plastic continually shrinks
 CA> although at a much decelerated rate after the first few weeks and
 CA> will return to various carbon compounds and crumble. As I remember
 CA> it he mentioned 10-15 years. I have managed to keep various
 CA> plastic objects for that long and they do crumble if you try to
 CA> disassemble them.

some do my panasonic TV is falling apart and it'sles than 10 years old,
by my old national portable black&white set with the rotory tuner still
seems solid. it boasts "IC" on the front so it's atleast 20 years old.

Tupperware(tm) seems to last forever (out of the sun).

 cg CA> I don't think sunlight is a factor but heat definitely is a
 CA> catalyst.

sunlight definately effects some plastics they go powdery on the surface
and crumble...  plastic seems to last better in a tin shed or attic or
inside a car where it can ge very hot than in the sun.

 -=> Bye <=-

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