Choose a silicone supplier, don't just compare prices
The true cost of silicone products comes from:Yield, Rework, Lead Time Stability and Lot ConsistencyThe procurement stage is often more cost effective than "asking for more quotes". A clear set of evaluation criteria at the procurement stage is often more cost-effective than "asking for more quotes".
12 Procurement Concerns (recommended to be directly into a supplier evaluation form)
1) Availability of own factories with key process capabilities
- Availability of mold machining/maintenance capabilities
- Whether molding, trimming, and inspection are done in the same system
2) Willingness to do a DFM (manufacturability review)
A good supplier will suggest before opening the mold: draw slope, thin edge, parting line position, risk of groove, etc.
3) Source and traceability of materials
- Ingredient brand and batch records
- Availability of material specifications with statement of conformance
4) Consistency guarantee between samples and mass production
- Availability of small batch pilot production and process validation
- Ability to lock in key parameters
5) Critical dimensions (CTQ) management
- Ability to recognize critical dimensions
- Whether there are clear test methods and records
6) Whether the appearance criteria are quantifiable
- Raw edge height, parting line, color difference range
- Clear definition of visible/sealing surfaces
7) Real ability of delivery time and capacity
- sampling period
- Mass Production Scheduling and Material Availability
8) Communication efficiency and engineering interface capabilities
- Ability to quickly understand drawings and working conditions
- Whether actionable changes can be suggested
9) Is the offer structure transparent
- Mold fee, unit price, secondary process, inspection, packaging
- Availability of MOQ and Step Pricing
10) Quality Exception Handling Mechanism
- How to determine defective products
- Corrective action and review are in place
11) Packaging and shipping standards
- Anti-compression, anti-friction, anti-pollution
- Label information and batch management
12) Confidentiality and Intellectual Property Awareness
- Protection of drawings, samples, recipes and other information
It's a simple rule of thumb: a supplier who can articulate the "risk points" is more reliable than one who just says "no problem".
Procurement question template (can be copied and pasted directly)
- Our product applications/media/temperatures are: ......
- Key dimensions and tolerances are: ......
- Please give: DFM Risk Points + Material Recommendations + Sampling Cycle + Mass Production Inspection Program.
