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A: How to glue polyethylene or polypropylene
On Saturday, May 6, 1995 at 3:00:00 AM UTC-4, Stuart Friedberg wrote:
Here's a prospective answer (not question) for the FAQ. I am crossposting this because the question comes up with some regularity in several different groups. Indeed, I have been one to ask the question in the past (and get a useful answer), so I'm trying to repay the net somewhat. I have no financial interest in the products mentioned. Q: How can you glue polyethylene or polyproplyene? A: PE and PP are hard to glue because they have "low surface energy". Very crudely, they have little interest in sticking to anything else, including adhesives. One technique that works is to apply a chemical "surface activator" then use cyanoacrylate adhesives ("superglues"). Until recently, surface activators were not marketed for retail, although anyone could buy small quantities from a Permatex distributor like a bearing or power transmission industrial supply house, or from similar sources. Recently, the Locktite brand has started retail marketing of a product called "Plastix" that is a kit of surface activator and compatible cyanoacrylate adhesive. The literature for Plastix indicates it is suitable "even for" PE and PP. |
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