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Credit: Andrew McCaul

What broke: Plastic objects that need to withstand a certain amount of wear and tear, such as a toy with a part broken off, or that require flexibility, such as outdoor furniture.
 
The fix: IPS Weld-On 16 Cement chemically welds the surfaces it touches, allowing the edges to fuse.
 
How to use it: Apply to both pieces, and wait 15 to 30 seconds for the glue to get tacky before joining. Align parts and hold together for about a minute, applying moderate pressure. The cement will set in 12 to 24 hours.
 
Sticking points: 

  • Plastic cement is flammable, so avoid using it near a gas stove.
  • The vapors can be harmful if inhaled in an enclosed area.


Cleanup: Get rid of excess glue by wiping surfaces and hands with a damp cloth or nail-polish remover before it sets. Use something with an edge, like a paint shaver (available at hardware stores), to scrape off dried cement.