Originally Posted by
chartle
The glue is contact cement.
When using contact cement you coat both parts, let the solvents evaporate and then stick the two items together. They bond almost instantly with full strength.
The patch already has the cement applied to it.
http://en.wikipedia.org/wiki/Contact...tact_adhesives
No, you apply the vulcanizing fluid to the tube. One side only.
Originally Posted by
cyccommute
The glue should no longer be
wet, i.e. have any solvent left in it. It will certainly be tacky...but keep your grubby fingers off it
Your skin oils and road grim will keep the patch from sticking.
This. One trick is to apply the fluid a bit wider than the patch. That gives you a place to test the stickiness. You want it not wet but tacky. It should not take 5 minutes for this.
Originally Posted by
davidad
Be sure to sand off the mold release or the patch won't stick.
This too. Actually, the point of sanding is to remove the slickness on the tube and increase the surface area. The patch won't stick even if there is no mold release on the tube.