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Mold Coatings and Stamping Dies

Mold Coatings and Stamping Dies

moldcoatingsTechmetals provides several coatings for which can greatly increase the life of plastic injection molds and aluminum die cast/injection molds.

Techmetals coatings provide several key advantages.

A coating thickness of approximately 3 microns allows for tools to be machined to final size prior to coating.

Techmetals coatings can be chemically stripped without harming the substrate material. This allows for increased tool life by stripping and recoating when the coatings do begin to wear.

Injection Molding applications

TechCoat 100: Provides good wear properties on moving components such as slides, cores, and pins
TechCoat 400: Provides improved wear properties for molding of abrasive or filled materials
TechCoat 600 : Provides a harder coating for molding of abrasive or filled materials

Die Cast Molding

TechCoat DLA coating of cores greatly reduces aluminum soldering. Field results show an average production uptime increase of 85% as a result of the reduction of aluminum soldering.

moldapplicationsSome Applications & Examples

  • Blow mold pvd coatings
  • Core and cavity molds pvd coatings
  • Core pin pvd coatings
  • Die pin coatings
  • Die casting mold pvd coatings
  • Ejector pin pvd coatings
  • Guide pin pvd coatings
  • Injection molding pvd coatings
  • Medical injection mold pvd coatings
  • Metal Injection mold pvd coatings
  • Metal Stamping die pvd coatings
  • Rubber injection mold pvd coatings


Mold Coating – Decision Chart

TM Coating
bluearrow

TM 105

Armatech

TM 103

TM-117C/
 TM-117P

OptaKoat

E-Krome

UltraKoat

General
Description of Coatings
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Microcracked or Thin Dense Chrome Similar to Armaloy Electroless Nickel High      Phosphorous     10-12% Electroless Nickel Co-Deposit of Teflon

Electrolytic
Alloy Deposit of Nickel Phosphorus

Electroless Alloy Deposit

Electroless Alloy Deposit

bluearrow2MOLDING
ATTRIBUTE
DESIRED:
 table1 table1  table2 table3 table2  table4  table4

Corrosion Resistance
Excellent=10
Carbon Steel=0

5

6

9

8

10

7

7

Wear Resistance
P20 Steel=5
Best Coating=10

8

10

6-8
Dependent on Resin Material

7-9 Dependent on Resin Material

6-8

6-9 Dependent on Resin Material

6-9 Dependent on Resin Material


Hardness Rockwell C
*Heat Treatment 600F

67-72 RC

70-72

48-49
60-62*

36

48-50
60-62

60-64
66-69*

55-60
64-69*

Uniformity of Deposit
Perfect=100%

25%

60%

100%

100%

70%

100%

100%

Lubricity

Fair

Fair

Good

Excellent

Very Good

Good

Superior

Release

Good

Good

Good

Superior

Good

Good

Excellent


Thickness Capability
(in inches)

.010+

.0003

.003

.0005

.010+

.005

.003

Thickness Recommended (in inches)

.0001 to

.0005

.0001-.0003

.0003 to

.001

.0001 to

.0005

.005+

.0003 to .0005

.0003-.0005

 Molded Part
Enhancement

Great Wear Release

Excellent Sliding Wear

Uniform Heavy Deposit to Conserve Plastic

Improves Plastic Flow

Flawless finish & Diamond Turnable

Excellent for Molding on Aluminum

Ultimate plating, Flow, Wear Release

Appearance of Coating

Bright

Satin
Non-Reflective

Semi Bright
Like Stainless
Steel

Light
Grey
Semi
Bright

Semi Bright Like Stainless Steel

Polished Stainless

Satin Stainless Steel

Repair of Coating

Brush Plate

Strip
Re-plate

Brush Plate

Strip
Re-plate

Brush Plating

Strip
Re-plate

Strip
Re-Plate

Chemical Stripping of Coating

Good

Good

Slow

Slow

Machine Only

Good

Good

Cautions

Avoid Chlorides bluebox

Avoid Synthetic Rubber Containing Sulfur Compounds red
Some Concern for Synthetic Rubber Containing Sulfur Compounds green

Base Material that can be Plated

Steel, Stainless Steel, Tool Steel, Brass and Bronze
(Aluminum must receive a deposit of Electroless Nickel first) greycircle

Any Metal Ferrous and Non Ferrous yellow
Retains Release Agents and/or oil star

fordetailsPlease Note: To prevent damage of a part, it is important that the plater be made aware of the mold material including any spray metal or welds prior to processing.

The above is a guideline only.  Techmetals does not warrant or guarantee any of these coatings for specific use.  Coatings need to be proven on a case by case scenario.

06/14/05 gm Uncontrolled Copy