×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Bonding Polyethylene & Polypropylene to Acrylic?

Bonding Polyethylene & Polypropylene to Acrylic?

Bonding Polyethylene & Polypropylene to Acrylic?

(OP)
Does anyone know if there are adhesives for bonding Polyethylene & Polypropylene to Acrylic? Preferably anaerobic cure types.

Thanks

RE: Bonding Polyethylene & Polypropylene to Acrylic?

Only adhesive I know about that will stick to untreated PP is PP based hot-melt.  YH America or Aica two manufacturers.

Howver, it is NOT considered to be a structural adhesive.

RE: Bonding Polyethylene & Polypropylene to Acrylic?

I think there may be a product that will do the job, it is acrylic based and is manufactured by 3M it may be worth a try

it was known as dp 400 but I when I used it but I think there is a new formulation and product code now.



 

RE: Bonding Polyethylene & Polypropylene to Acrylic?

3M Scotch-Weld Acrylic Structural Plastic Adhesive DP8005.
Remarkably, this actually bonds very well to polyolefins.  I've been testing a glued drop on PE film, and it has survived months in 180 F water.  It's a two part adhesive, 10:1 mix, and it contains micro-beads for gap registration. There's quite a bit of shrinkage upon curing.  Uncured, it flows slowly under gravity.  

RE: Bonding Polyethylene & Polypropylene to Acrylic?

  
LiCl (Industrial) May 22, 2003
3M Scotch-Weld Acrylic Structural Plastic Adhesive DP8005.
Remarkably, this actually bonds very well to polyolefins.  I've been testing a glued drop on PE film, and it has survived months in 180 F water.  It's a two part adhesive, 10:1 mix, and it contains micro-beads for gap registration. There's quite a bit of shrinkage upon curing.  Uncured, it flows slowly under gravity.   
 

In addition to LiCl's contribution, I would like to add that even though there is sufficient mechanical bond using the DP8005, I have found (through recent testing) that in many applications, due to the micro-beads for gap registration, the bond is succeptable to "leakage" and doesnot promote a "sealable" bond for sealed bond applications of the 3M product.

Using primer "promoters" with some of the various 3:1 to 10:1 epoxies does show promise with polyolefins for a "sealed" bond application.
 

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources