Need an EJ? We'll get it for free.  
If you want to learn then we suggest going over to STI's Website. Click the button & you'll head right there. 

We'll come out and help you solve your issues! 

GCP has some great resources if you want to dig in. Click the link below to head over there.

 Tremco is a great place to gather information. 

Trying to figure out how much sealant you will need? Joint calculator link below.