Permabond 105 Instant Adhesive-for Difficult Plastics & Rubbers (like EPDM)

Permabond 105 Cyanoacrylate Super Glue Instant Adhesive is a low viscosity high purity cyanoacrylate adhesive. It is ideal for use on hard-to-bond plastics and rubbers such as natural rubber, EPDM and butyl rubber. It is also used for bonding tight fitting parts, high speed productions, wicking and penetrating applications. It develops fast, strong bonds to plastics, metals, natural and synthetic rubbers.

And can even bond thse difficult surfaces if the POP primer is applied first to the difficult surface side. (POP means Polyolefin Primer):

• POolypropylenes (PP, PPCO, PPHO),
• Polyethylenes (HDPE, MDPE, LDPE, LLDPE, UHMW, PE)
• Silicone sheets or surfaces, prime first with
• PTFEs aka Teflons
  

Surfaces should be clean, dry and grease-free before applying the adhesive. Use a suitable solvent (such as acetone or isopropanol) for the degreasing of surfaces. Some metals such as aluminium, copper and its alloys will benefit from light abrasion with emery cloth (or similar), to remove the oxide layer. Also, this product is not recommended for use in contact with strong oxidizing materials and polar solvents although will withstand a solvent wash without any bond strength deterioration. Users are reminded that all materials, whether innocuous or not, should be handled in accordance with the principles of good industrial hygiene.