How do I use glazing and spot putty? I thought it would be primer gray, but it's red. I can...

I thought it would be primer gray, but it's red.
I can use this the same as body filler on the door of my truck?
With hardener, or not?
My ac contained by my home isn't working?
Answers:    spot putty is for pallid scratches and small pinholes within body filler it cant be put on thick .(no hardener) if you are nourishing small dents , its done with filler.(with hardener) the colour will be covered by primer.
Leaky Compression Faucet! NEED HELP FIXING!?