addition of a new layer of rubber lining
addition of a new layer of rubber lining
(OP)
One of our sub supplier have performed a rubber lining inside two our vessels. The thickness in some points was 3.3 mm instead of the required 4 mm (tollerance +/- 10%). Our client's inspector rejected the vessels and we have proposed to add an additional layer of 2 mm of rubber lining. Our client reject our proposal stating that this solution (add a new layer on an already vulcanized one) is not accetable. Is it true? If my sub supplier pay attention to avoid to have a too high hardness on the first layer, is there any other problem? Thank you! Davide





RE: addition of a new layer of rubber lining
RE: addition of a new layer of rubber lining
RE: addition of a new layer of rubber lining
Morover: you say that you would ask for a completely new layer, but what is the technical reason to not accept a second layer added to the first one?
Thank you,
Davide
RE: addition of a new layer of rubber lining
Did you spark test the lining?
Have you considered offering an extended warranty?
Why didn't your inspector catch this?
The question you have to answer is what will delight my client? And the answer is a lining that meets his specifications otherwise he wouldn't have spec'ed a 4 mm lining nor would he have sent an inspector to the shop to inspect the lining.
RE: addition of a new layer of rubber lining
It is obvious that my client want a good lining, but he have indicated in his spec 4 mm without any other detail, therefore, according to BS 7463 he would have check the thickness of the rubber sheet and not of the final lining. Now, it is clear that he prefer to have 4 mm even after vulcanization and he is asking for this, but, on the other side I can not do everything he ask me if there is no real requirement otherwise I will never finish my job and I will loose a lot of money.
This is the reason why I'm asking for further information on this problem. Bye, Davide