Custom rubber planning guide
What do you need to request a custom molded rubber quote?
A clear RFQ helps the team understand the part, compare options and ask the right questions before quoting. COi's review starts with a 2D drawing, material and durometer. You do not need to guess missing details: mark them as open so they can be discussed.
1. A current drawing
Send the latest 2D drawing with a revision identifier and units. Include dimensions, tolerances, critical features, color and any relevant notes. A 3D model, photos or a sample can help explain geometry, but they do not replace a clear definition of requirements. Identify which file controls if documents disagree.
2. The material and hardness
Name the rubber or elastomer and the hardness call-out, including the scale and allowed range if known. Include a customer material specification or required properties when applicable. If you need help selecting a material, describe the application, temperature, fluids, movement and expected function rather than inventing a compound designation.
3. Quantities and your supply needs
Provide expected annual usage, typical order quantity, sample needs and the requested timing. State whether the forecast is an estimate or a firm requirement. Include delivery destination and packaging needs so the commercial team can clarify the quote scope. Requested dates are not accepted delivery commitments until confirmed.
4. Testing and documentation
List required test methods, acceptance criteria, inspection records and program documents. Call out any customer approval process. Do not assume that a general reference to a standard includes every test or document your program needs. The team must review the exact requirement before agreeing to it.
5. Tooling and existing-part information
Say whether the part is new, a redesign or a source transfer. If tooling exists, explain its ownership, condition and whether transfer is possible. Share a sample or photos when available, and describe recurring problems you want addressed. Tool reuse and compatibility need review.
A copy-ready RFQ checklist
Drawing and revision; units; material; hardness and scale; critical dimensions; application and exposure; annual usage; order quantity; sample quantity; requested timing; delivery destination; packaging; tests and documents; tooling status; your technical and purchasing contact.
What happens next
The team reviews the information, asks about gaps and discusses material, process, tooling and sample needs. Price, minimum quantity, tooling cost, schedule and any compliance statements are confirmed for the specific project. This guide does not set those terms. Send drawings to sales@coirubber.com or use the contact page.
Related reading: Engineering support · Material technology. General planning information only. Requirements and commercial terms must be confirmed for your project.