White UPVC Polishing Compound Used For Valve , Conductive Plastic Material

Product Description

White UPVC Compounds Used For Valve

The UPVC stands for Rigid Polyvinyl Chloride, it is in pellets.

Maybe some clients will experience some unhappy cases during production with ours

raw materials.

Let me clarify, it is very common, friends!
All the plastics pellets made by our company Sugo ESD Plastics are modified, not like

the regular resins, which can be processed at a standard temperature and pressure according to Technical Date Sheet.

The modified plastics are made by common resins blending a lot of different kinds of

additives, there will be some changes on its physical properties in order to get the

function of ESD Protection or

other functions.

Here is an actual story of one of my clients from Europe, what he bought was UPVC

pellets used for valves. Last week, he told me that the first vales was OK to be injected,

but later they started to burn,

it seemed the materials didn’t have thermal stability at 170°C to 180°C.

I realized it at once that he have the working temperature at 170°C to 180°C at the

begging.

The correct way is to start with a working temperature of 150°C, and adjust it slowly,

then increase 5°C by 5°C up to 170°C, but have to stop increase it until UPVC pellets

are fully melted.
So that is to say, the working temperature may lower than 170°C, production can be

went ahead at any temperature as long as materials can be fully melted.
And then he needs to adjust the mold pressure at the same time.

Today he was pretty happy and told me he was succeed to run mass production following

the above suggestion.