Cellulose ether manufacturer in Shandong China| WhatsApp +8615864350397|[email protected]

Grade Selection and Sampling

Most failed trials are a grade problem, not a chemistry problem. This is how we narrow the range before you commit to a container.

Process

Five Stages From Enquiry To Repeat Supply

Requirement review

A viscosity number on its own does not identify a grade

We start from the finished product, the shear your process applies and the water you mix with, then shortlist from the 300 to 200000 mPa.s range.

Sample despatch

Waiting weeks for a sample stalls a development programme

Samples go out by FEDEX, DHL or EMS. Some are free of charge and you cover the freight.

Laboratory trial

A sample without data is hard to evaluate against an incumbent

Each sample ships with the certificate of analysis; HPLC or NMR data is available on request.

Scale-up

A grade that works on the bench can behave differently on the line

We stay involved through the first production batch and adjust the grade or dose if the plant data says so.

Repeat supply

A one-off shipment does not solve a recurring requirement

Once the grade is fixed, it is held against your forecast so repeat orders ship from stock.

Questions

Grade Selection and Sampling Questions

How long does this take in practice?

A sample normally leaves within a few days by FEDEX, DHL or EMS. Once a grade is agreed, stock items despatch within 5 days of payment and produced items within 7 to 10 days.

Is there a minimum order quantity?

Tell us the quantity you have in mind. Discount follows volume, so we will quote both a trial quantity and a container so you can compare.

Who do we deal with day to day?

One contact handles the technical questions, the documents and the shipment, so you are not chasing three parties at clearance.

Start The Conversation

Send the requirement and we will tell you the next step, the sample and the timing.