connecting 2 pieces if liner

[andestang]

I have two large pieces(12 x16) of liner I'd like to join together. Just wondering what the best way would be to join them together. Any advise ?

 

[koiguy1969]

Vinyl,or epdm? epdm theres a seam tape specifically made for it, use the cleaner primer first. vinyl, im not sure for long seams