High Temperature Polyimide Masking Discs

Remarks:Customize the size and die-cutting according to customer requirements.

High Temperature Masking Discs, also known as Polyimide Masking Discs, are primarily used in circuit board production, wave soldering and other applications.These discs/dots are manufactured from commercial grade polyimide film with a special silicone adhesive. The polyimide carrier is only 1 Mil, making this tape extremely conformable for irregular shapes and surfaces. Designed for high temperature masking found in conformal coating of PCBs, protection of gold fingers during circuit board soldering and electrical insulation of high temperature coils, motors and transformers.

Specifications

Carrier - 1 Mil Polyimide
Adhesive - 1.5 Mil Silicone
Total Thickness Mils - 2.5
Tensile Strength (lb./in) - 30
Adhesion to Steel oz/in - 25
Dielectric Strength v/mil - 6500
Operating Temperature ℃ - 260℃

Product Features

Temperature Rating: 500° F / 260° C
All die cuts 3/8" or larger come standard with a split-back liner. Split liner for smaller dimensions upon request
Meets Class H Requirements, flame retardant
Excellent dielectric strength and chemical resistance
Conformable for uneven surfaces or irregular shapes
Removes cleanly even after long bake cycles with no residue
Used in Powder Coating, E-Coating, Wave Soldering, Hot Air Leveling, and Circuit Board Insulation

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.