Services
From requirement confirmation to mass production — a documented, engineering-led process.
Your Custom Silicone & Plastic Parts, Engineered from Day One
Every custom part at SIKING starts with an engineering conversation, not a price list. Our process is designed so that problems are identified early — when they cost nothing to fix — rather than after tooling is cut.
- NDA signed before any technical discussion begins
- DFM report issued within 3–5 business days
- Prototype mold: 7–10 days after DFM approval
- Production tooling: 15–25 days
- ISO 9001:2015 and ISO 14001:2015 certified quality system
- SK9002A enterprise standards in force throughout production
From Enquiry to Mass Production
Eight steps. Clear timelines. Documented handoffs at each stage.
Requirement Confirmation
NDA signed. Technical drawings, material specification, quantity, and tolerance requirements reviewed. Application context and end-use environment confirmed. Ambiguities documented and resolved before engineering begins.
Product Design Review
Engineering team reviews geometry for moldability, wall thickness consistency, and tolerance-risk features. Structural concerns flagged before any tooling investment. 2D/3D model review included where drawings are available.
DFM Report & Quotation
Design for Manufacturability report issued — covering recommended process, material grade, mold design approach, and any geometry modifications advised to improve yield. Tooling cost and unit price quotation provided concurrently.
Mold Design & Flow Analysis
In-house mold design including cavity layout, parting line placement, gate positioning, and runner system. Flow simulation completed to predict fill pattern and identify potential knit lines or air traps before machining begins.
Prototype & Sample Mold
Prototype tooling produced and initial samples moulded. Dimensional inspection report provided against customer drawings. Colour, hardness, and surface texture confirmed at this stage. Mold modifications included where adjustments are required.
Production Tooling
Full production mold fabricated in hardened tool steel. Cavity count optimised for target volume. All mold dimensions verified against DFM-approved design before first trial shot. Mold lifetime typically 100,000+ cycles depending on material and geometry.
Trial Production & Approval
Initial production run completed. Full inspection against acceptance criteria. First-article inspection report (FAIR) provided. Customer approval or outstanding punch-list documented in writing. Mass production does not begin until written approval is confirmed.
Mass Production, QC & Shipping
Production run executed under approved process parameters. Incoming material batch checked against certification documentation. In-process and final inspection to agreed AQL or DPPM target. Outgoing inspection report and material certification pack included with shipment.
Material Supply and Compounding
No substitutions without notification. Full traceability from supplier batch to finished part.
Imported Raw Materials
Primary silicone materials sourced from Dow, Wacker ELASTOSIL, and Shin-Etsu — the three principal global LSR and HTV silicone suppliers. Full SGS, MSDS, and RoHS documentation provided per shipment batch.
In-House Compounding
SIKING compounds silicone in-house across a 0–90 Shore A hardness range. Custom formulations available for conductive silicone, flame-retardant grades, and applications suitable for indirect food contact.
Batch Traceability
Every production batch is linked to its incoming material certification. Traceability records held per order. If a quality issue surfaces post-delivery, material batch can be identified and isolated across the affected production run.
Why This Process is Different
Most silicone suppliers treat DFM as optional. At SIKING, it is the entry point — not an upsell. The DFM report is issued before any purchase order is raised for tooling.
This matters because the highest-cost problems in custom silicone manufacturing are dimensional and process problems discovered in steel — warpage, tolerance drift, parting line flash, and uneven cure. These cannot be fixed by inspection. They require mold rework or redesign.
SIKING's process is designed to eliminate these problems before the mold is machined. SK9002A defines the tolerance bands. The DFM review checks the design against those bands. The flow analysis confirms the fill before the first chip is cut.
- DFM review before tooling commitment — catches the majority of design problems at zero rework cost
- Flow simulation before machining — identifies fill, knit, and warp risk upfront
- SK9002A enterprise standard in force — tolerance bands defined, not negotiated per project
- Mass production does not begin until first-article approval is confirmed in writing
- Outgoing inspection report and material certification shipped with every order
Start with a Technical Review
Send us your drawings or requirements. DFM report and quotation within 3–5 business days. NDA available before any technical discussion.