Raw Material

Our Medical Rubber Diaphragm compound from world class suppliers or domestic rubber supplier and customized pantone code is available, hardness from 30 to 90 Shore A.

Size

Standard size with our current mold or customized according to your sample or drawing( 2D, 3D drawing , format STP, DWG, PDF , etc)

Quality and Certificate

We execute ISO9001 quality system and our Medical Rubber Diaphragm has passed ROHS/Reach/WARS/FDA certificate.

Mold and tooling

In house tool making and free of tooling charge for standard rubber diaphragm, the mould parting line will be sent to customer confirmation.

Management and quality tracking: Strict material traceability under ERP system.

Medical Rubber Diaphragm process flow

PO confirm---Develop mold according to drawing or sample---Develop chemical formula according to specifications---Mix the raw material as per formula---Prepare and Install the mold on the machine---Preform the rubber compound---Put the compound into mold and vulcanization with certain temperature and pressure---After a while, remove the goods from the mold---Trimming the flash---Inspection---Packing---Shipping

Small MOQ:Have variety Medical Rubber Diaphragm in stock, so mini MOQ is acceptable.

Function: seal and dustproof.

Payment: T/T, L/C, Credit card. USD, RMB ,Euro and so on other currency is available.

Trade Term: EXW, FOB, CIF etc

Package: poly bag and carton(40*32*25CM). If you need pack by pallet or other customized package, it’s also ok.

Shipping method: By air, by sea, by express, multi-modal transport

FAQ: How to solve the rubber spray (whitening) problem?

Rubber has unvulcanized rubber (hereinafter referred to as rubber) and vulcanized rubber (hereinafter referred to as products), rubber frost spray including rubber surface spray and product surface spray. Frost spray (BLOOM) is the phenomenon that liquid or solid complexes migrate from the rubber interior to the rubber surface [1]. Visible rubber internal coordination agent precipitation, the formation of frost spray. The form of rubber spray frost summed up, roughly divided into three kinds. Namely spray powder, spray wax, spray oil (also known as exudation). Powder spray is vulcanizing agent, promoter, active agent, anti-aging agent, filler and other powder complexes precipitated on the rubber surface, and form a layer of powder. Spray wax is paraffin, ground wax and other wax precipitated on the rubber surface, and form a layer of wax film. Oil injection is the softener, viscosifier, lubricant, plasticizer and other liquid complexes precipitated on the rubber surface, and the formation of a layer of oil.

In practice, the surface of rubber products in the form of frost spray sometimes in one form, sometimes in two or three forms at the same time.

In a recent period of time, spray frost phenomenon has been a headache, ejecta zinc stearate, white carbon black, calcium carbonate, anti-aging agents, promoting agents and so on, from which I checked some information, sent to you, some of the paper may have been sent in this forum, so please understand

Regarding frost spraying, the following points need to be paid attention to:

1. Appropriately increase the amount of synthetic glue, which is helpful to reduce the ejection of filler

2. The use of a variety of promoters and reduce the supersaturation of promoters

3. USES the many kinds of stabilizer and because work need its migration, antiager itself if but with one or the dosage is too large, will inevitably lead to the rapid, with other substances, so employ, can reduce the dosage of single protective agent, on the one hand, can reduce the supersaturated danger, on the other hand can also extend the action time of protective agent

4. Appropriately increase the dosage of solid softener to adsorb filler

5. If zinc stearate is used as isolating agent, the return wire must be tempered evenly to prevent local saturation of zinc stearate and ejecting

The frosting on the rubber surface not only affects the appearance quality and service life of the products, but also affects the processing performance and technological performance of the semi-finished products of the rubber material. At the same time, it also causes certain economic losses to the enterprise and brings immeasurable damage to the reputation of the enterprise. Therefore, formula designers, process formulation personnel in the design of the formula, formulation of the process should fully consider the characteristics of raw rubber, the performance and dosage of the agent, the factory's processing conditions, storage environment, product storage cycle, use conditions and so on; Production operators must operate in accordance with the process procedures; The purchasing personnel should be organized according to the material origin and standard required by the formula design, so that the various properties of rubber can reach or close to the level of the formula design, in order to avoid the occurrence of quality problems such as rubber spray frost.