OEM Waterproof Plug Overmolding Silicone with Plastic Parts

• Customization: Available
• Usage: Industrial, Medical, Electronic, Household
• Material: NBR/Nr/EPDM/Fvmq/HNBR/LSR/Cr/Silicon/PU
• Model NO.: melon230222.
• Tolerance: DIN ISO 3302-M2
• Certification: RoHS/Reach
• Transport Package: Customzied
• Specification: Customzied
• Trademark: OEM
• Origin: Made in China
• HS Code: 4016101000
• Production Capacity: 5000000

Product Description

OEM overmolding silicone plastic silicone integrated parts used for equipment buttons

What is Rubber Overmolding
Rubber overmolding is the process ofencapsulating or bonding a substrate, with other rubber material into a single part. To some extent, it can alsoe called as rubber insert molding. The sustrate can be varous mateials, like metal, plastic, fabric or rubber, while the subsequent overmolomaterial generally is silcone.liquid slicone or other industrial rubber like nitrile, EPDM SBR CR etc. That is two materials or multi-materiasare molded and formed into a finished product. Rubber overmolding manufacturing process is achieved by compression molding, transfermolding,or liquid silicone injection molding

Rubber to plastic overmolding is realized by liouid silicone inection to the plastic substrate.Liquid silicone iniection molding can provide a ratheiower curing temperature (about 10°C - 160) compared with rubber compression molding, so LSR injection overmolding is a good choice forrubber to plastic bonding.

Rubber Overmolding Application
Rubber overmolding parts are widely used in different fields, like auto, electronics, medical, and baby care fieldsElectronic: silicone USB overmolding cables. SIM card slot, LSR gaskets to plastic housingAuto: rubber vibration absorber , rubber hand grips with metal inserts, screw drivers, rubber to metal bumpersBaby Caring: baby bottles, silicone spoons by LSR overmold to PPSU. silicone pacifier with plastic inserts, liquid silicone toothbrush

Rubber to Plastic Overmolding Process and Bonding Types
In rubber overmolding process, there are two joint methods to connect silicone part with plastic or metal piece robustly, mechanical bonding andchemical bonding. To create a stronger joint, mechanical bonding and chemical boning can be used at the same time

Chemical Rubber to Plastic Bonding ProcessGlue Adhesive withOvermold
During liquid silicone to plastic overmolding process, careful preparation of plastic insert should be done before overmolding.
Plastic substrate should be cleaned to make sure it without contamination of dust, dots and burrs which will affect the connection.Then coat the primer or other adhesive agents to plastic insert surface where plastic part will contact with overmolded rubber
f necessary to get a high-quality durable product, plastic inserts with primer should be dried to enhance adhesive efect before molding.Adhesion
of dried primer is better because preheat can boost the combination of plastic and silicone rubber
Without surface treating. plastic parts will drop from overmold material easily, as they are not tightly bonded together.
Put the pre-coated plastic inserts to mold cavities, and then inject liquid silicone to cover the plastic. Primer react to be adhesive in mold heat
temperature to join different overmolding materials.

Silicone Rubber Overmolding to Plastic Manufacturing Ways and Guide
Silicone to plastic bonding can be done by compression molding, transfer molding, and liquid silicone molding. But one important point thatwhether the overmold material can be compatible with molding temperature need to be take into consideration first. Some plastic materials becomesoft and melted when meet with high temperature. So here is the heat distortion temperature chart of diferent plastic to showy the overmold




 

Technical Specification
Material	NBR, NR, EPDM,FVMQ,HNBR,LSR,CR,Silicon, PU,SBR,IIR
Size/Color	Customized
Hardness	20-90 Shore A
Processing Way	Compression, injection, injection transfer, extrusion, silicone liquid injection
Certificates	SGS, RoHS. Reach
Packing	PE plastic bags then to the carton / as customized
Payment	T/T, Paypal, Western Union,Payoneer
MOQ	5000 PCS
Shipping Method	SEA,AIR,DHL,UPS,FEDEX,TNT, etc.
Delivery Time	7 days for prototype tooling & samples, 14 days for production mold, 14-28 days for MOQ

Melon Rubber&Plastic is specializing in the manufacturing of precision rubber ring, silicone ring, ring

and industrial rubber products over ten years experience; including rubber gaskets, rubber grommets &

Bushings, rubber diaphragms, rubber section cups, one way check sealing valves, rubber stoppers, rubber

plugs, rubber caps, silicone parts manufacturing and custom made seal rings.




Even If you do not have a technical drawing, Melon Rubber&Plastic has the ability to reverse engineer your
product for you directly from a sample. From simple to highly complex rubber shapes, we takes pride in our
ability to consistently produce accurate molded rubber products guaranteed to meet your exact specifications
and function perfectly within your application. 

Melon Rubber manufacturer has technical advantage of R&D experience in rubber mold, rubber compounds design,
rubber cover molding to provide customized service for small lot rubber & plastic order and quote within 24 hours.