Start with your current PP/PE grade. Match by TDS and process.
Share the current grade, TDS, application and processing route. We document comparable Chinese candidates, property differences and open checks; source, grade scope, availability and terms are verified per RFQ.
01
Define the use and process first
Record the reference grade, end use, processing route, critical properties and buyer must-haves. If process or use is unclear, a candidate is not presented as a final substitution recommendation.
Current grade and producer, if known
End use and processing conditions
Critical properties and acceptance limits
02
Compare properties, not one number
Comparison points follow the resin, TDS, application and process. A single value such as melt flow does not establish equivalence; different test methods, conditions or units are flagged.
Source and test conditions
Matches, differences and unknowns
Candidate-by-candidate rationale
03
Verify producer and channel by grade
Yuhua Yunchuang is a designated first-tier agent for Guangdong Petrochemical (PetroChina). This does not mean every PP/PE grade is within appointment or available supply scope; producer, covered grade, channel, quantity and quotation terms are confirmed per RFQ.
Appointment scope confirmed by grade
Quantity and lead time checked per enquiry
Batch COA supplied as agreed for the order
04
Buyer validates through an agreed trial
The comparison narrows the screening field; it is not an unconditional drop-in, performance guarantee or regulatory conclusion. The buyer validates a trial under agreed process and acceptance criteria before any production decision.
Define trial objective and decision criteria
Record results and deviations
Buyer decides whether to proceed to volume
Supply scope and boundaries
Appointment status does not replace grade-by-grade checks.
Are you the manufacturer of all listed PP/PE grades?
No. Yuhua Yunchuang is a supply-chain and export-service entity, not the resin manufacturer. The actual producer and channel are confirmed for each order.
Are PE grades covered by the Guangdong Petrochemical appointment?
That should not be assumed. Appointment coverage is verified for the specific product and grade; PE enquiries are checked separately for producer, source channel and supply terms.
Can we start without a TDS?
An initial discussion is possible, but a candidate will not be described as a validated substitute until key properties, use and process have adequate support.
Does a grade match guarantee a successful first trial?
No. Matching depends on the supplied data, test methods and processing conditions. The buyer evaluates the trial against criteria agreed in advance.
