Summary for polypropylene adhesive Discussion
polypropylene adhesive is the core issue in this thread: Sarah Entrikin, a research assistant for an earring distributor, says the current glue will not bond polypropylene earring posts without melting or damaging the part. The replies suggest that polypropylene is difficult to bond with ordinary adhesives. One response points to 3M structural adhesives, while John Kellam reports that hot glue worked well in his test, noting that other sources say polypropylene can only be bonded with heat and that he could not pry the bond apart with a knife. The discussion also mentions 3M Spray Adhesive #90 as another option, but the excerpt does not include performance details. Overall, the thread leans toward trying heat-based bonding or specialty structural adhesives rather than standard glue, with the caution that results may vary and testing is important.
Q. I am a research assistant for an Earring distributor. We have came across a problem with the current glue that we are using and need assistance in finding an answer. The type of product that we use for our earring post is made of polypropylene. The adhesive that we are currently using will not adhere to the product with out causing a meltdown in the structure. If anyone would possibly have some suggestions as to what type of adhesive works best with a polypropylene product, and could forward them on, I would really appreciate it.
Thank you,
Sarah Entrikin
earrings – Bunker Hill, Illinois
2004
A. Try 3M DP 8005 or 8010 structural adhesive ⇨
,
it’s designed to glue PP.
Regards,
Ricardo Carrilero
– Madrid, Spain
2005
Q. Hi I am Narn From print to pack India -I have PP 20 micron plastic carton contract.. .please advise which adhesive would be suitable means for clear and best bonding result
please advise asap
regards/naren
Narendra vyas
manufacturer – Bangalore-India
May 13, 2009
A. I had the exact same problem and tried a couple of glues. Most of them didn’t stick well to the PP (= waste of time).
Then I had the idea to try a (hot) glue gun. I first wiped the spot to be glued with mineral spirits
⇦ on
or
Amazon [affil link]
and let it dry (to remove any oily residues on the PP). Then I applied the glue with the (hot) glue gun. The attachment is perfect. It is as fast a bond as can possibly be, the glue is like welded with the PP and you cannot separate it at all. It is as if the glue and the PP are now one single piece of plastic.
For specifics, I used an “Arrow MT300 Mini Glue Gun” (about $9 at Hardware stores, it came with 3 spare glue sticks in the package), but I think the make or model of the glue gun doesn’t matter at all. Any hot glue gun should work.
To use a hot glue gun really seems the perfect way to glue PP! Happy glueing, and cheers to all!
Hella Kitty
– Paris, Sorbonne, France
The hot glue idea is brilliant! Other sites say polypropylene can only be bonded with heat, and that’s what happens with hot glue. I did a test bond and couldn’t pry it apart with a knife. Excellent!
John Kellam
– Tucson Arizona USA
October 2, 2011
I sent an email request to 3M, and they replied that 3M Hi-Strength 90 Spray Adhesive ⇨
is suitable for polypropylene, polyethylene, and other materials.
Brad Jones
– LaGrange, New York USA
May 4, 2012
Q. Hi. I need a polypropylene adhesive that repairs polypropylene
pipes. ⇦ Answer?
Ali Movla
– Qushchi, west Azarbaijan, Iran
March 15, 2013