Masking Solutions For Specialty Coating Applicatons

Electroplating, Anodizing, Hard Chrome Plating

Metal finishing is a complex process that involves chemicals,

coatings, and harsh environments to strengthen of the metal by

making it more durable and less prone to common element wear in

its final product format. There are many types of metal finishing processes,

but the most common are:

Electroplating is usually used to cover a less expensive metal with a more expensive metal, or to cover a corrosive metal with a less corrosive or noncorrosive metal.

Anodizing is a conversion coating process used to achieve an oxidized surface finish on metal components. It increases the thickness of the naturally occurring oxide layers on metal, enhancing the finished part's corrosion and wear resistance.

Hard chrome plating is an electroplating process in which chromium is deposited from a chromic acid solution. It is used for wear and corrosion resistance in addition to its low friction and shiny characteristics.

Thickness

Series        (mil)

Backing

Adhesive

Adhesion (oz/in)

Tensile Strength (lbs/in)       Color

Temp Resistance

Key Features

Finishing Process

Common Applications

3M 484

6.7

Vinyl

Rubber

22

23

Yellow Brown

Up to 170°F

• Excellent resistance to most chemicals

• Resists most common solvents

• Linered version available die-cuts

• Electroplating/ Anodizing

• Mask various surfaces during electroplating and anodizing

3M 470

7.1

Vinyl

Rubber

37

20

Tan

Up to 250°F

• Excellent resistance to most chemicals

• Can be qualified to meet Federal Specifications HH-T-0025( GSA-FSS) Ammendment 2

• Resists most common solvents

• Conformable

• Backing accepts marker ink and is printable

• Electroplating

• Masking during many electroplating operations, including both flat strip and overlapping masks

• Wrapping, patching, coated racks and masking many irregular surfaces

3M

8985L

3.9

Polyester

Rubber

20

70

Purple

Up to 200°F

• Excellent abrasion, tear, scratch, puncture and moisture resistance

• The purple translucent backing allows for visual inspection without tape removal

• Provides good initial tack and holding strength

• Clean removal

• Non-silicone adhesive allows use on many parts where subsequent painting or bonding is necessary

• Non-silicone liner allows for die-cuts

• Anodizing

• Designed specifically for masking parts against chromic anodization bath processes

TC76

4

Vinyl

None

N/A

N/A

Yellow

N/A

• Non adhesive

• Adheres firmly to itself when spirally wrapped

• Provides high stretch and excellent conformability

• Hard Chrome Plating

• Hard chrome plating

TC158

7

Vinyl

Rubber

17

16

Yellow

Up to 194°F

• Resistant to oil, acid, alkaline, and corrosive chemicals

• Has excellent adhesion to metals and plastics

• Electroplating

• Use with PCB terminal zone contacts to prevent penetration of chemicals during the plating process and as a protection tape for shot peening applications

TC790

4

Vinyl

None

N/A

N/A

Black

N/A

• Non adhesive, blocked material

• Adheres firmly to itself when spirally wrapped

• Provides high stretch and excellent conformability

• Hard Chrome Plating

• Hard chrome plating