LINQTAPE Polyimide Tapes | Questions & Answers

We recent­ly had a cus­tomer ask us sev­er­al ques­tions about our LINQTAPE PIT1S / PIT1A Poly­imide tapes. We have post­ed the ques­tions as long as the answers below:

Q1. What’s the min­i­mum poly­imide film thick­ness?
A1. Our thinnest stan­dard mate­r­i­al is 1mil (0.025mm). We can pro­duce thin­ner, but there would be min­i­mum order quan­ti­ties asso­ci­at­ed.

Q2. Could we pro­vide free sam­ples of PIT1A?

A2. As you can imag­ine, CAPLINQ receives many, many requests for “free sam­ples”. The man­u­al entries, paper­work and ulti­mate­ly costs that result­ed from work­ing out­side our cur­rent work­flow sys­tem (ensur­ing cor­rect ship-to address­es, price quotes, sam­ples lists, fol­low-up, etc.) was not in line with the low-cost mod­el that we try to bring to our cus­tomers. As such, we have done away with min­i­mum order quan­ti­ties and imple­ment­ed a way to order sin­gle units instead of ship­ping free sam­ples.

Q3. What is the heat resis­tance? We require it above 200C for 1–2 hours.
A3. The tem­per­a­ture resis­tance depends on the appli­ca­tion. The poly­imide film itself can with­stand tem­per­a­tures of 450 °F (~230 °C) and for short peri­ods, can with­stand tem­per­a­tures as high as 900 °F (~480 °C). The weak point is the adhe­sive sys­tem. The sil­i­cone adhe­sive (PIT1S-Series) can main­tain adhe­sion above 200C, as well as short (2–3 min­utes) peri­ods at 260C. Above this tem­per­a­ture, adhe­sion drops off quick­ly. Acrylic-adhe­sives (PIT1A-Series) have a low­er tem­per­a­ture resis­tance, but at low­er tem­per­a­tures (Room tem­per­a­ture) have a high­er adhe­sion than sil­i­cones. Depend­ing on the appli­ca­tion (name­ly mask­ing), it is quite rea­son­able that the PIT1S could with­stand 200C for 2 hours.

Q4. Under a cer­tain degree of tem­per­a­ture an pres­sure, would the glue be com­ing out from the edge?
A4. It is imag­in­able that under pres­sure at high tem­per­a­ture that the adhe­sive lay­er is com­pressed. Whether and how far it would come out from under the poly­imide back­ing, we have no data for.

Q5. What is the low­est thick­ness that can be pro­duced, and will the thick­ness influ­ence its heat resis­tance abil­i­ty?

A5. I need to check with pro­duc­tion what the min­i­mum thick­ness is, but no, heat resis­tance is inde­pen­dent of the film thick­ness.

for more infor­ma­tion vis­it us or con­tact us.

About Chris Perabo

Chris is an energetic and enthusiastic engineer and entrepreneur. He is always interested in taking highly technical subjects and distilling these to their essence so that even the layman can understand. He loves to get into the technical details of an issue and then understand how it can be useful for specific customers and applications. Chris is currently the Director of Business Development at CAPLINQ.

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