Use a longer stitch than on a regular project typically 3 0 mm.
Apliy vinyle seems.
How to seam vinyl sheet flooring.
Nylon is the best second best would be 100 polyester.
When a room larger than 6 by 12 foot requires a vinyl floor you will need to correctly seam the material to ensure the floor remains waterproof.
Apply a bead of seam sealant over the seam.
Cover the seam with a transition strip.
Traditionally vinyl tiles are manufactured in such a way that when they are installed they are tight and square to each other with no gaps in.
Hold a straightedge about 1 4 in.
Roberts 7500 vinyl seam sealer is a strong and durable seaming adhesive.
Seal the seam with vinyl seam sealer.
How to seam vinyl flooring.
Those holes will weaken the vinyl and make it prone to tearing.
As for thread for sewing vinyl on most vinyl you can use general purpose thread but if you expect the seam will experience a bit of a stress use heavy duty thread.
Away from the seam to guide the applicator nozzle but don t get sealant on the straightedge.