Steinel High Strength 12 Glue Sticks

Is this good for both porous and non-porous materials?

the plastic handle of the dryer broke, will this be strong enougth to bond plastic to metal and not come off?

Are the general purpose sticks safe for aquarium use? They say non-toxic but do they have additives other than plastic?

I need to pull a smooth plastic part from the car engine, can I glue a bolt to to the part with this glue and then pull the screw to get the part out?