Tech-Bond Solutions

Molecular Bonding

  • Home
    • Tech Bond Solutions
    • Tech-Bond Tech-Patch Opportunity
    • The Solutions Story
    • Solutions Family
    • The Solutions Foundation
    • Mission Statement
    • The Tech-Patch Story – started with a request to solve a problem.
    • Our Money Back Guarantee
    • Questions? Contact Us
    • Is Tech-Bond “Food-safe”?
  • Industries
    • Poly Tank Repair Industry
  • Videos
    • Our Repair Videos
    • Repairing a large hole in a poly tank – it can be done!
    • CPAP Mask Repair
    • Complete Copper Pipe Repair Guide
    • How to Repair a Rigid Polypropylene Bumper Cover
    • How To Repair A Flexible Polyurethane Plastic Bumper
    • How To Repair a Kayak
    • How to Repair Pot Metal
    • How to Repair a Plastic Grill
    • How to Fix A Refrigerator Shelf
  • Molecular Bonds
    • Don’t glue silicone rubber, BOND silicone rubber
    • Don’t glue polyethylene, BOND polyethylene
    • Don’t glue Teflon, BOND Teflon®
    • Don’t Glue Nylon, BOND Nylon
    • Don’t glue Delrin, BOND Delrin®
    • Don’t glue Polypropylene, BOND Polypropylene
    • Don’t Glue Neoprene Rubber, BOND Neoprene Rubber
    • Don’t glue Polyurethane, BOND Polyurethane
    • Don’t glue Nitrile Rubber, BOND Nitrile Rubber
    • Don’t glue Mylar, BOND Mylar®
    • Polymer Bonding
    • Molecular Bonding
    • Glue or Bond? Bonds are much stronger.
  • Testimonials
  • Repairs
    • How To Repair A Poly Tank
    • Polypropylene Gas Tank Repair- It CAN Be Done
    • Plastic gas tank repair with a PTFE Patch
    • Gas tank repair – white paper
    • Complete HDPE Pipe Repair Guide
    • Pump Housing Repair
    • How to repair a hole in a copper pipe
    • Complete Copper Pipe Repair Guide
    • Complete PVC Pipe Repair Guide
    • Repair a leaky PVC joint – without replacing any pipe
    • How To Repair PVC Pipe Fractures
    • How to repair a hole in PVC pipe
    • DIY Easy and Permanent Home Pipe Repair
  • Tech-Patches
    • Permanent Plastic Gas Tank Repair
    • Tech-Patch Pipe and Tank Repair Page
    • Which Tech-Patch is right for you?
    • How long will Tech-Patches last?
    • Tech-Patch Reports- From Aging To Thermal Cycling, Burst Testing and more.
    • Tech-Patch Technical Data
  • Tech-Bond Store
    • PTFE Tech-Patch for repairing gas tanks.
    • G Series Tech-Patch. For the repair of metal & plastic (poly) tanks and pipes.
    • XT Tech Patch – stops leaks in pipes & tanks
    • Poly Kits – for the permanent bonding/repair of ALL polymers – to themselves, to any other polymer and/or to almost any other substrate.
    • Starter Kits – for bonding repairing wood, metal, rubber, PVC, china, porcelain, leather, vinyl, etc.
    • Basic Kits – adds the Filler to the chemicals available in a Starter Kit. The Filler fills and cracks in damaged substrates.
    • Deluxe Kit – adds the Filler to the Poly Kit.
    • Professional Kits – bonds/repairs all substrates except glass, stainless and alloy steels.
    • Prep Room Kits
    • Taxidermy Kits
    • All Tech-Bond Kits – Better chemistry, better results.
    • Adhesives – Single, 5-pack, 10-pack
    • Accelerators
    • Poly Prep: Single, 5-pack, 10-pack
    • Debonder: the best CA undo!
    • Filler – a unique solution
    • Accessories – CA, Superglue
    • SDS’s and TDA’s
You are here: Home / Don’t glue Polypropylene, BOND Polypropylene PP

Don’t glue Polypropylene, BOND Polypropylene PP

Glue Polypropylene?  No, “bond” Polypropylene, with the Bonding Poly Process (patented)

Conventional wisdom used to be that you can’t glue polypropylene, which is a polyolefin. Nowadays, you type in glue polypropylene and you get everything from gorilla glue to Elmer’s glue and little pre-packaged one and done at best, super glues. Everyone is now claiming to be able to easily glue polypropylene. Why? Simple. It is currently the most prevalent plastic. When we switch over to biodegradable plastics like PLA, everyone will be claiming to be able to easily glue PLA, but for now the material of the day, is PP or polypropylene.

The fact of the matter is you might be able if you are lucky, to get Elmer’s to stick two pieces of polypropylene together. And you might even be able to get gorilla glue to ‘stick’ two pieces of polypropylene together, but they will not be bonded together. Bonding is the fusion of the two substrates at a molecular level, creating unmatched sheer and tensile strength. ‘Gluing’ simply works by being sticky and works on the same principle of a piece of gum, wedged between two objects, holding them together. For any amount of strength or performance with polypropylene, you simply need more than crazy or super glue, because polypropylene has the common problem that most poly’s share; low surface energy. These type of low surface energy materials are even referred to as ‘non-stick’.

Over glues and epoxies.

Materials with high surface energy have attractive forces which make them easy to bond or even glue. Materials with low surface energy like polypropylene, have inherent repulsive forces, which make it virtually impenetrable. This is especially true for glues and epoxy’s which do no even attempt to break through the surface to begin with. They work by forming a sticky glue join. Our Process however, results in cohesion at the molecular level. The Process allows you to repair polypropylene parts, devices, toys, etc., quickly, easily and permanently – provided there is adequate surface area. Besides surface preparation, adequate surface area is the second key component for bonding/repairing polypropylene (PP). Heat is the third. The steps of our Process are outlined below. While it is not as easy as most crazy glue companies would have you believe, that you can just glop on some goo and then it is good to go………the Bonding Poly Process is not difficult either. The steps are more involved than slopping on some sticky paste, but the results are far superior. The Process uses the laws of chemistry and physics to form deep and permanent bonds.

Properties.

Wherever and wherever we state that we can bond polypropylene or any other poly the universal reaction is skepticism.  Skeptics are the reason why we have a 100% customer satisfaction money-back guarantee.  If any of our kits do not perform to your expectations, we will refund your purchase price.  Simply return the kit.  After selling thousands of kits, we have not had to make a refund.  In the years since we developed the Process, we have only had to make one refund.  The case is outlined at the bottom of the page.

To bond polypropylene to itself or to any other polymer.

The Process always works.  Below are the step-by-step instructions for bonding polypropylene to itself or to any other polymer.

  1. Use a medium to fine grit sandpaper to rough the polypropylene (poly) surfaces.
  2. Clean with a liquid that will not leave a residue. 
  3. Wipe the polypropylene (poly) surfaces with a soft cloth.
  4. Saturate the polypropylene (poly) with our Poly Prep, an adhesion promoter for polymers.
    When you do NOT need worktime.
  5. Spray one of the polypropylene surfaces with our Activator/Accelerator (AA).
  6. Warm both surfaces with a hair dryer or heat gun.  Warm to very warm but not hot.
    1. By touch, just below hot.
    2. By temperature, about 120 degrees F.
  7. Apply an SI Structural Structural Adhesive to the opposite surface from where you sprayed the AA.
    1. Apply the SI adhesive using continuous circles.
    2. Make sure the edges are covered.
  8. Align and firmly press the polypropylene surfaces together for 10-15 seconds.
    When you need worktime.
  9. Warm both surfaces with a hair dryer or heat gun.  Warm to very warm but not hot.
    1. By touch, just below hot.
    2. By temperature, about 120 degrees F.
  10. Apply an SI Structural Cyanoacrylate to one of the polypropylene surfaces.
    1. Apply the SI adhesive in continuous circles making sure there is no break in the adhesive.
    2. Make sure that the adhesive will reach the edges.
  11. Firmly press the polypropylene surfaces together for 6-8 seconds.
  12. Spray the AA on the seam.

As a result of this process, the two polypropylene surfaces will be bonded.  Operational strength is achieved within an hour.  Full strength will take at least as month.

*Our Surface Insensitive (SI) Structural Adhesives, in conjunction with our Poly Prep Adhesion Promoter, will bond 98% of all materials.

To bond polypropylene to steel. To bond polypropylene to aluminum.

  1. Rough the polypropylene and the metal with a low-grit coarse sand paper.
  2. Saturate the polypropylene surface with an adhesion promoter designed to work with poly’s.
  3. Spray a solvent based Activator/Accelerator (AA) on either the polypropylene or metal.
  4. Warm the polypropylene surface with a hair dryer or heat gun.  Warm to very warm, but not hot.
  5. Apply an SI Structural Adhesive to the opposite surface from where the accelerator was sprayed.
  6. Firmly press for ten seconds.
  7. Warm the bond for twenty seconds

As a result of this process, the polypropylene and metal surfaces are bonded.  Operational strength is immediate.  Full strength will take at least as month. Don’t glue polypropylene, bond polypropylene.

Polypropylene Video 

We are working on a Polypropylene video.  As shown in the above video, Polypropylene is often the polymer of choice for small parts.  For an appropriate polypropylene video, we will have to collect a number of small broken polypropylene parts to illustrate the best techniques for repairing those poly items.  In the meantime, our Teflon® video is best example of how to use the Process to repair polyethylene or other poly parts.  The steps of the Process are essentially the same whether you repairing/bonding polypropylene or Teflon® items.

https://youtu.be/Mtvf5FE0pg4

Our patented Bonding Polymer Process

What is the secret of the Bonding Polymer Process?  There are actually two, Chemistry and Physics.  Our Poly Kit that combines the Laws of Chemistry and Physics to create the bonds needed :

  • a polymer-enhanced, Surface Insensitive Structural Cyanoacrylate  
  • our standard Activator/Accelerator, (chemistry at work)
  • the Poly Prep (more chemistry)
  • and heat (the Laws of Physics part of the Process.)

When working with polypropylene, Teflon®, nylon, Delrin®, polyethylene or any other poly, it is extremely important to understand that polymers are very slow curing.  Bonds may take thirty days or more to fully cure.  However, in most cases, the item can be put into use within an hour.

The Case Study

As stated above, we have only had to make one refund with one of our Poly Kits.   Here is the case study of that refund.  

An individual purchased a Professional Kit to bond two halves of polypropylene balls together.  The polypropylene balls were about one and a half inches thick.  The walls were about one sixteenth inches thick.  Using the Process, our client successfully bonded the two halves together and allowed the creation to cure for 24 hours.  To test, the polypropylene balls were dropped from a height of ten feet.   First time.  No problem.  Second drop.  No problem.  Third drop.  The ball came apart. That breakage did not meet the customers hopes. Ergo the refund. 

Because polypropylene has exceptional strength, it is used to make small and thin constructs.  What about when those items break?  Can you create the same strength in the repair?  Quick answer?  No. You can, however, make a repair using the Process that will withstand normal wear and tear.  An explanation is needed.  The amount of strength created depends of the amount of surface area.  If there is adequate surface area, repairs will withstand normal wear and tear. Bond strength is always dependent on the amount of surface area available for the repair. 

Final question. Can surface area be added to increase strength?  Yes it can. Use of our Filler can increase bond strength by about five percent. Though five percent is not usually enough to make a critical difference. The filler is best used for surface repairs, a crack in the dashboard of a car, drilling and tapping and threading screws. You can even you it to make missing pieces or parts. The completion of a melted blower motor wheel. There are many uses for the filler and it can provide extra surface area and strength, though nominal.

In all the almost 20 years we have been offering our unconditional performance guarantee, this is the only refund we have ever issued. Our track record with polypropylene and poly’s in general is impeccable. And unless you are planning to bond one tenth of one millimeter thick bouncing balls together and drop them from the roof of your house, that one blemish is a non-issue. As with any material, the more surface area there is, the stronger the polypropylene bond is. Often times the bond is stronger than the material itself. If any failure occurs it is usually substrate failure; breakage of the material in places other than the bond.

Bonding Polymers

To bond polymers, you need one of Poly Kits.  Our Basic Poly Kit includes;

  • an SI Structural Cyanoacrylate,
  • our standard Activator/Accelerator,
  • the  Poly Prep,
  • a detailed step-by-step instruction sheet.    

Save 15% With Tech-Bond Kits

Our Poly, Deluxe or Professional Kits will bond Polypropylene to itself and any other substrate; except stainless steel and glass.

Online Store
More About Molecular Bonding

*If you have any questions, feel free to call 877-565-7225.

To Leave A Review of Your Polypropylene Molecular Bonding experience…..

CLICK ON VIEW NON-AMP VERSION ON THE BOTTOM OF THE PAGE

Submit your review
1
2
3
4
5
Submit
     
Cancel

Create your own review

Poly Molecular Bonding Kit- For Bonding Polypropylene
Average rating:  
 0 reviews
  • ‘Glue Plastic’. The “How To” Guide On Bonding All Plastic Types: Acrylic’s, Resin’s and Poly’s
  • Accelerators
  • Accessories – CA, Superglue
  • Adhesives – Single, 5-pack, 10-pack
  • All Tech-Bond Kits – Better chemistry, better results.
  • Cart
  • Checkout
  • Common Gas Tank Repair Problems
  • Complete Copper Pipe Repair Guide
  • Complete HDPE Pipe Repair Guide
  • Complete PVC Pipe Repair Guide
  • Comprehensive Company Profile
  • Comprehensive Product Table
  • Cookie Policy
  • CPAP Mask Repair
  • Creating a bond
  • Debonder: the best CA undo!
  • DIY Easy and Permanent Home Pipe Repair
  • Don’t glue Delrin, BOND Delrin® POM
  • Don’t glue Mylar, BOND Mylar®
  • Don’t Glue Neoprene Rubber, BOND Neoprene Rubber
  • Don’t glue Nitrile Rubber, BOND Nitrile Rubber HNBR
  • Don’t Glue Nylon, BOND Nylon, Polyamide
  • Don’t glue Polyethylene, BOND Polyethylene
  • Don’t glue Polypropylene, BOND Polypropylene PP
  • Don’t glue Polyurethane, BOND Polyurethane PU
  • Don’t glue Silicone rubber, BOND Silicone rubber
  • Don’t glue Teflon, BOND Teflon (PTFE)
  • Facebook
  • Filler – a unique solution
  • G-Series Tech-Patch For Pipe and Tank Repair
  • Gas tank repair – white paper
  • Glue or Bond? Bonds are much stronger.
  • Home
  • How long will Tech-Patches last?
  • How To & Videos
  • How to Fix A Refrigerator Shelf
  • How To Repair A Flexible Polyurethane Plastic Bumper
  • How to repair a hole in a copper pipe
  • How to repair a hole in PVC pipe
  • How To Repair a Kayak
  • How to Repair a Plastic Grill
  • How To Repair A Poly Tank
  • How to Repair a Rigid Polypropylene Bumper Cover
  • How to Repair Pot Metal
  • How To Repair PVC Pipe Fractures
  • Industries
  • Is Tech-Bond “Food-safe”?
  • Mission Statement
  • Molecular Bonding
  • Our Adhesives
  • Our Money Back Guarantee
  • Our Repair Videos
  • Permanent Plastic Gas Tank Repair
  • Permanently repair large water tanks without plastic welding.
  • Plastic gas tank repair with a PTFE Patch
  • Poly Prep: Single, 5-pack, 10-pack
  • Poly Tank Repair Industry
  • Polymer Bonding
  • Polypropylene Gas Tank Repair- It CAN Be Done
  • Product Catalog
  • Pump Housing Repair
  • Questions? Contact Us
  • Repair a leaky PVC joint – without replacing any pipe
  • Repairing a large hole in a poly tank – it can be done!
  • Repairs
  • Requirements for ISO 24817 & Tech-Patch Compliance
  • SDS’s and TDA’s
  • Sewer Rehabilitation and Renewal Industry
  • Solutions Family
  • Submit Testimonial/Review
  • Survey
  • Tech Bond Solutions
  • Tech-Bond Store
  • Tech-Bond Tech-Patch Opportunity
  • Tech-Patch Pipe and Tank Repair Page
  • Tech-Patch Reports- From Aging To Thermal Cycling, Burst Testing and more.
  • Tech-Patch Technical Data
  • Tech-Patches
  • Testimonials/All Reviews
  • The Key To Full Seal Pipe and Tank Repair
  • The Solutions Foundation
  • The Solutions Story
  • The Tech-Patch Story – started with a request to solve a problem.
  • Videos
  • Water Pipeline Repair Resources and Reports
  • When To Use BP Blue
  • Which Tech-Patch is right for you?
  • Why is plastic hard to glue?
  • XT Tech-Patch For High Pressure Pipe and Tank Repair
  • YouTube