About tpr overmolding mold

TPR (thermoplastic rubber) overmolding is a process in which a layer of TPR material is molded over an existing substrate or component. The TPR material is typically a soft, rubber-like material that provides additional grip, cushioning, or protection to the underlying component.

To create a TPR overmolding mold, the mold designer will typically start with a base mold that corresponds to the shape of the substrate or component being overmolded. The base mold is designed to leave a void or cavity in the desired shape and location for the TPR material.

Next, a second mold is designed to fit over the base mold and create the cavity for the TPR material. This mold is designed with the shape and location of the final TPR overmold in mind. It may have one or more cavities, depending on the complexity of the overmold shape.

Once the two molds are designed and manufactured, the TPR overmolding process can begin. The substrate or component is placed into the base mold, and the TPR material is injected into the second mold cavity. The second mold is then closed and clamped to the base mold, and the TPR material is allowed to cure.

Once the TPR material has cured, the molds are opened, and the overmolded part can be removed. The resulting TPR overmold will conform precisely to the shape of the underlying component and provide the desired properties, such as increased grip or cushioning.

Overall, TPR overmolding molds are used to create parts that require the soft, rubber-like properties of TPR material while also retaining the shape and functionality of the underlying component. This process is often used in the manufacturing of products such as tool handles, toys, and consumer electronics.

GYIK

Date:2021-8-10

GYIK/ Frequently Asked Questions

As a plastic mold and injection molding company in China, we prepared answers for following most frequent asked queries for you, for more queries are always be here for you.

1. What info needed to get a correct mold quotation? How fast does it take to quote a project?

1)2D or 3D product drawing is needed for a mold quote;

2) If special requirement on mold steel, mold life, cavity quantity, hot runner requirement, part material, forecasted year quantity. Complete information will help to a most suitable cost effective, value added mold solution.

3) Normally take 2 working days to quote a new mold project seriously, and expedite quote is also available.

2. What’s the payment condition in TKB Mold?

1) New customer for mold: T/T 50% deposit, 50% against sample approval.

2) Mold modification: 100% upon sample approval.

3) Injection molding parts: 50% deposit, 50% before shipment.

4) VIP customer special terms: to be negotiated.

3. What’s the price terms/freight TKB mold will offer?

Normally TKB will offer ex-work TKB price for injection mold and plastic parts.
Free mold trial shotting samples free of charge and with freight to collect.
VIP customer special terms: to be negotiated.

4. What’s lead-time for a plastic mold and injection molding processes?

Injection mold lead-time counted from mold drawing approval and receipt of deposit to first mold trial(T1), and the difficulty of the molds determines how much time is needed, normally 20 to 60 days.

Injection molding lead-time counted from sample approval and receipt of deposit to production finish, order quantity determines how much time is needed, normally 7 to 15 days.

5. Will TKB send DMF to customer?

Yes，TKB Mold will send DFM (design for manufacturing) analysis and even mold flow analysis prior to the start of mold construction for customer review/approval.

6. Will TKB send mold design for approval?

After DMF approval, TKB will send the mould design for approval, and TKB will not start steel-cut before getting customers written approval of mold design.

7. How many plastic samples will be free provided?

TKB normally would provide 10~20 shots first mold trial shooting samples with gate(if have) free of charge according to the size of the parts, it would be freight to collect.

8. Which side provides plastic resin for injection mold trial?

TKB can provided plastic resin, if needed customer can provide the plastic resin the same.

9. How to make sure of quality before shipment?

shipment can be arranged only after TKB QC inspection PASS, or customer QC inspection PASS, or third-party inspection PASS if required. And TKB will always be there to provide full support.

10. How will TKB keep record of all mold data.

TKB will keep record of all final approved 2D, 3D mold drawing, modifications document, and send to customer for file to avoid future confusion in case engineering change is needed.