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Masking Dots and Strips

 

For printed circuit board wave solder applications.

Polyimide film is used internationally as a masking medium, to protect parts of the circuit boards where solder is not required. Typically there is a need to mask gold coated edge contacts as well as holes where components are to be inserted at a later date.

A good clean removal of the dots is essential in all applications.

Katco produce a range of dots and strips, using polyimide film in thickness and diameters as shown below.

ID_1352_website_content_katco_dots2.jpg

For powder coating applications.

Polyester film is the most frequently used material for masking during the powder coating and paint spraying processes. Polyimide film can be used where a high temperature mask is called for. Typical sizes are as shown below.

 
Dots Strips


Diameter
thickness
Size
thickness






film
total
film
total
mm mm mm mm mm mm






3 0.025 0.065 3 x 10 0.025 0.065
4 0.025 0.065 3 x 15 0.025 0.065
5 0.025 0.065 3 x 20 0.025 0.065
6 0.025 0.065 5 x 10 0.025 0.065
7 0.025 0.065 5 x 15 0.025 0.065
8 0.025 0.065 5 x 20 0.025 0.065
9 0.025 0.065 5 x 25 0.025 0.065
10 0.025 0.065 8 x 20 0.025 0.065
12 0.025 0.065 8 x 25 0.025 0.065
14 0.025 0.065 8 x 30 0.025 0.065
15 0.025 0.065 8 x 35 0.025 0.065
16 0.025 0.065
18 0.025 0.065
20 0.025 0.065
  • Masking dots are supplied on rolls of 2000 dots, mounted on a carrier tape with split backing.
  • Dots, strips, and die-cut components can be produced using customers preferred material, this could be Kapton®, Nomex®, Mylar®, Melinex®, Ultem® etc.
  • Kapton dots have a bronze colour, polyester dots are supplied blue or green colour.
 

Email: info.uk (at) lohmann-tapes.com

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Fax: +44 01908 300969

 

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