High Temperature Polyimide
Masking Tape & Dots

Description
INT 701 is a polyimide film tape with a silicone adhesive. Polyimide film retains its excellent physical and electrical properties over a wide temperature range. Polyimide film will not burn, will not melt, has no known solvents, and has good radiation resistance. Polyimide film is very often known as "Kapton", which is a brand name and registered trademark of E.I. du Pont de Nemours and Company, a manufacturer of polyimide materials.

Applications
Soldering: Masking gold fingers or other sensitive areas during the soldering process. Especially useful where excessive heat is applied (for example: multiple immersions or long preheats during wave soldering) or if tape is to be left on the pcb after processing. Some low-solids fluxes require higher temperature preheats. We recommend INT 701 if this is the case. Temporary fixturing during soldering.

HAL: Hot air levelling.

Others: Hot dip galvanising, plasma spraying, annealing, wire insulation for extreme environments, e.g. aerospace.

Available in die cut discs, ex stock.

Test results indicate that this product is suitable for lead-free soldering, which often occurs at higher temperatures. In particular, INT 701 does not shrink, and leaves no residue on removal. Please evaluate in your lead-free process.

Read our Eponymous Kapton blog entry.

See also!  Solder masking dots & tape  Wondermask P, a liquid peelable solder mask  High temperature masking tape  Anti static high temperature polyimide tape

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October 2005
Version 4.0