What is the real difference between loctite epoxy plastic bonder and loctite super glue plastics bonding system with activator?

The difference is in what you want to bond. Epoxy is a 2 part glue that is mixed in equal parts, it will bond plastics such as ABS, PVC, nylon, and Acrylic which are "NON" waxy plastics. The loctite super glue plastics bonding system is a Cyanoacrylates type glue and can be use on plastics such as polypropylene , HDPE, PE, etc which are a "Waxy" type of plastics.

Anyone know what the activator is? Can I use the activator with other glues?

I'm still searching myself--perhaps this will help someone: IF n-Heptane works as an activator to bond plastics, you can buy a pint can of (apparently 100% pure) nHeptane on Amazon for under $14: "BESTINE Solvent and Thinner for Rubber Cement...16 Ounce Can". Amazon's link: https://www.amazon.com/BESTINE-Solvent-Thinner-Rubber-Cement/dp/B004O7HM38/ref=sr_1_1?ie=UTF8&qid=1534190132&sr=8-1&keywords=heptane&dpID=51xQHaC%252BC6L&preST=_SY300_QL70_&dpSrc=srch I would very much like to know if this would work as an activator to bond polyethylene to polypropylene using a glue (such as a super glue, and perhaps others)?

does this bond clear PET plastic?

Loctite's website says its designed for polyethylene plastics so I would give it a try. Other glues that seem to bond anything to anything are the various GOOP glues and E6000, which I prefer because it isn't so thick. GOOP and E6000 are basically the same type of glue (synthetic rubber based) with the latter being a little easier to work with, especially for small components. Both are made by the same company. But I would try the Loctite glue -- it makes a really strong bond. Be sure to follow the instructions EXACTLY and make sure you put a substantial amount of the activator (contained in the pen component) onto both surfaces and wait 20 seconds to dry before applying the glue component to one of the surfaces and putting the parts together. Hold the two parts together for at least 30 seconds to set/cure.

ASIN	B000Y3LHXW
Best Sellers Rank	#189,964 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #734 in Hardware Sealers
Brand	Loctite
Colour	Clear
Country of Origin	USA
Date First Available	13 June 2014
Global Trade Identification Number	00079340825659
Item Dimensions LxWxH	33 x 22 x 133 Millimeters
Item Form	Liquid
Item Package Quantity	1
Item Volume	5938.31 Cubic Inches
Item Weight	5.9 g
Manufacturer	Loctite
Manufacturer Part Number	681925
Material	Plastic
Model Number	681925
Number of Pieces	1
Package Information	Tube
Special Feature	Versatile Plastic Bonding
Specific Uses For Product	Plastic
UPC	079340825659

Henkel/Osi Sealants 681925 2 Grams Plastix Advanced Plastic Bonder

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