“Glue plastic?  What You Need To Know About Gluing Plastics.”

There are more searches on how to glue plastic than on any other repair issue.  Plastics, even poly-plastics are now easy to glue/repair.  Watch our videos and you will see how easy it is to glue plastic, quickly easily and permanently. 

A summary of the techniques for gluing/repairing plastics (the “Bonding Poly ProcessTM” (patent pending) appears below.  One of the problems with plastics is that there are three types of plastics, poly-plastics, resin (toy, modeling) plastics and acrylics (plexiglass).

To bond/repair poly-plastics, a primer must be used.  If you are unsure what type of plastics you’re dealing with, prime your plastic.  Priming will not hurt the plastic if your piece is not a poly. 

Once a poly-plastic (or other poly) has been primed, all plastics are treated the same and you will get a superb repair with any plastic.  The “Bonding Poly ProcessTM” appears below.

For plastics, acrylic plastics (plexiglass), poly-plastics, co-polymers and polymers use the following steps, starting with step 3..  If the material is a polymer, co-polymer, or a polyolefin use the Poly-Bonding Poly Process TM (BPP) (patent pending) described below.

Poly-Bonding Poly Process TM (BPP) (patent pending)

The Poly-Bonding Process™ for poly-plastics and other polymers begins at step 1.  The process for acrylics and resin plastics begins with step 3.

  1. Begin by saturating both edges or surfaces* of the poly item to be repaired/bonded with the Poly Prep.
  2. Let the Poly Prep dry.
  3. Spray one edge/surface of the polymer or plastic with our solvent based A/A.
  4. Warm both edges with a heat gun or hair dryer for 20 to 30 seconds (110 to 115 degrees Fahrenheit. Warm not hot.)
  5. Apply the SI adhesive to the opposite edge from where you sprayed the Activator/Accelerator.
  6. Press the two edges together.
  7. Warm the seam with a heat gun or hair dryer for 15 – 20 seconds.
  8. Done, though full cure with plastics takes up to seven days.

When the repair is a crack, the procedure is slightly different.  Again polymer repair begins at step 1, other plastics at step 3.

  1. Spray the Poly Prep.
  2. Let the Poly Prep dry.
  3. Take a blow dryer or a heat gun and WARM both edges/surfaces for thirty seconds.
  4. Apply a structural adhesive (Usually SI Blue) to the crack.
  5. Align the two edges/surfaces and press for fifteen to twenty seconds.
  6. Spray the seam with the Activator/Accelerator.
  7. Take the hair dryer or heat gun and warm the seam for thirty seconds.

* If you don’t have heat available, you will still get an excellent glue join by just using the Poly Prep, a solvent based AA and an SI adhesive.  If you don’t have either heat or the AA, the Poly Prep and SI adhesive will also work.

A link to the kits that will bond poly-plastics appears below.


To glue plastic that is a resin plastic (toys, models) or an acrylic plastic (plexiglass) use the following link.  You need the Activator/Accelerator and heat to achieve the best results.


If you have any questions on how to glue plastic, please call 877 565 7225.

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