Low Pressure Molding History
1972 :France IBM first time.
1987 :Eruope automotive start to molding for electronics
1993 :Use for France automotive wiring harness industry
1995 :Wide use for automotive and extended to electronic
2000 :Use for PCB, Sensoring Device and connectors.
After2000: Wide range use for worldwide inudstries.
What is Low Temperature molding
The low pressure injection molding process is a packaging process that uses a very low injection pressure to inject the encapsulating aterial into the mold and quickly solidation. In order to achieve insulation, temperature resistance, impact resistance, reduce moisture, waterproof, dust, chemical resistance.
Applies to: circuit boards, electronic connectors, wiring harnesses, batteries, switches, LED lights, coils, etc..
Advantages
Short injection cycle
Resin Materials environmental protection
The compound does not have to be mixed
Thermoplastics do not require solidation time
High reliability
Simple mold design
Advantage of Overmolded parts
Waterproof
Insulation
Impact resistance
Temperature resistance
Chemical resistance
Scrap No harm to the environment
PA materials elements
Plastic Resin Elements
Dimer acid based polyamidoamines are the result of
Dimer acid based polyamidoamines are the result of polycondensation between diamines and dibasic acids.
Where the low pressure plastic resin come from?
Dimer acid extracted from common agricultural products
Castor oil
Corn oil
Linseed oil
Peanut oil
Vegetable oil
Tall oil
What is the color of Low Pressure materials
The material is granular
Generally black or amber
Can be made into other colors
Our provide materials including
Inejction Pressure1-200psi(0~60kg)
Molding temperature160° C~230° C
Protect the property of IC and components
Charactor
PA/PO/PET/PUR
QL-Custom sufficient stock
QL-Custom Professional advice
Envirmetal
Good insulation properties, flame retardant properties and corrosion resistance
How to select the materials of low pressure molding ?
High Temperature Resistant
| Name | Old Name | Current Application | Color | Working Temperature | Hardness (ShoreA) | Melt Temperature |
|---|---|---|---|---|---|---|
| PA673 | OM673 | Use for automotive hood | Amber | -40℃~140℃ | 90 | 187℃ ±5℃ |
| PA678 | OM678 | Black | ||||
| PA682 | OM682 | Inside of Auto tire, low water tramission | Amber | 88 | 188℃ ±5℃ | |
| PA687 | OM687 | Black | -40℃~140℃ |
Adhesive to Plastics
| Name | Old Name | Current Application | Color | Working Temperature | Hardness (ShoreA) | Melt Temperature |
|---|---|---|---|---|---|---|
| PA633 | OM633 | Use for Auto Fire Wall | Amber | -40℃-130℃ | 90 | 175℃ ±5℃ |
| PA638 | OM638 | Black | ||||
| PA652 | OM652 | Good bonding and flexibility | Amber | -40℃-100℃ | 77 | 157℃ ±5℃ |
| PA657 | OM657 | Black | ||||
| PA6208 | MM6208 | Cable Strain Relief | Amber | -40℃-100℃ | 78 | 155℃ ±5℃ |
| PA6208 | MM6208S | Black |
Toughness Resins
| Product | Old name | Current application | Color | Working Temperature | Shore A | Melt Temperature |
|---|---|---|---|---|---|---|
| PA341 | OM341 | High Voltage Modules | Transparent Orange | -25℃-125℃ | 92 | 173℃ ±5℃ |
| PA641 | OM641 | Memory Stick, Connectors | Amber | -40℃-130℃ | 92 | 175℃ ±5℃ |
| PA646 | OM646 | Black | ||||
| PA648 | OM648 | UV stability, out door electronics | Black | -40℃-130℃ | 92 | 175℃ ±5℃ |
Chemical Resistance
| Product | Old Name | Application | Color | Working Temperature | Shore A | Melt Temperature |
|---|---|---|---|---|---|---|
| AS4226 | - | Automobile transducer, industrial assemblies | Transparent | -40℃-85℃ | - | 165℃ ±5℃ |
| AS5373 | MM5375/MM Q-5375 | Excellent bonding to hard plastics, Overmolding | White(Not Transparent) | -30℃-100℃ | 55 | 139℃±5℃ |
| PA2384 | - | Temperature and Oil Resistant ,Automotive sensors | Amber | -20℃-175℃ | 65~75 | 189℃ ±7℃ |
UV Resistant Low Pressure Molding plastics
| Name | Old Name | Current Application | Color | Woking Tempearture | Shore A | Melt Temperature |
|---|---|---|---|---|---|---|
| PA668 | - | UV resistant, Out door LED and lighting | White | -25℃-130℃ | 90 | 155℃ ±5℃ |
| PA6344 | - | UV resistant hotmelt, plastic welding is good bonding | Black | -20℃-100℃ | 76 | 147℃ ±9℃ |
Provide Good sealing, Hot and Chemical Resistant
Low Pressure Mold Solution
Manufacturing service
Application
Why select low pressure molding?
Encapsulation advantage
Machine price advantage
Mold price advantage
Can injection precision products because:
Low pressure + low temperature
Short product injection cycle
Simple mold design
Why choose QL-Custom?
Because we are dedicated to the development of low pressure injection molding technology
Because we provide a full range of low pressure injection solutions
Because we are advance 7year with international low-pressure injection molding technology
Because we have the best team
How to use molding instead of casting?
Traditional Casting
Low Pressure Injection Molding
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