Which plastic?

paultshangas,

You might look into either PVDF (Polyvinylidene fluoride), or Nylon.

Both are resistant to toluene; However, at 100 degrees C, you are quite close to nylon's "maximum use temperature".

Thanks J man.Is it clear?

PVDF is...

Sorry, is it clear as in see through.Crystal clear.My understanding is that PVFD is opaque at best but white naturally whuch is no good for me.Clear like a coke bottle.

No clear PVDF.

cr3

Have you looked ....here?

It's been 35 yrs since I worked with nylon. Depending on the thickness, you would be able to see through some nylon type polymers. While I dont recall the use temperatures for polycarbonates, they may be more appropriate; they are certainly clear and strong. Unfortunately, I believe they are expensive.

You did not say if this is a blow molded or injection molded bottle. There are many more injection moldable grades of plastics than blow molding grades that would meet your requirements. Another thing that would be helpful to know is whether some amount of tint is allowed, or if the bottle needs to be water clear. Krayton G 2705 is a clear, blow moldable material, but I don't know about its chemical resistance. Teflon PFA 350 is clear, blow moldable, and resistant to almost all industrial chemicals, but it is very expensive, and few molders will touch it. A clear nylon that should meet your requirements is Durethan T-40, but it is an injection molding material. If a clear amber color is allowed, and the bottle is injection moldable, there are many grades of polysulfone, polyethersulfone, polyetherimide, and other materials that would work.

Currently it is blow moulded.Hot blow mould with PET(like coffee cold drinks and juices) and it is clear and has a concaved mould but is not withstanding temperatures above 85-90 degrees celcius content ie oil.PET is resistant to most chemicals but changes shape at about 88 degrees and there is shrinkage.I need a material or a process that allows both heat and chemical resistance without changing shape.I need a PET like resistance against chemicals but can also withstand liquid above 95 to 100C.

Appreciate the help

Guest,

Could you explain to me the process of injection molding a bottle. Molded as a solid and then bored out? I thought blow molding was the only feasible way to manufacture bottles. Thanks.

JJ

A bottle could be injection molded only if the neck is not smaller than the inside body of the bottle. Otherwise, the bottle would not come out of the mold. There will be a metal core that would form the inside of the bottle, and the cavity and/or slides or unscrewing device would form the outside and the threads, if it has threads.

This is a little left field but could you consider a coated or laminated structure? Like PC coated with PVDC or even a clear aliphatic urethane or a clear nylon. Many food packages are laminate structures like this.

i got suggstion..even someboday told that can ue nylon..but usually nilon will absorb water..so its very difficult..how about teflon...teflon can used at high temperature..beside that..the material will not sticky with teflon... i have been use this as curemeter base for epoxy, rubber...beside that i also used in compression molding when tmeperature above than 200 degree required..especially for PC, PMMA and PS