How to install rubber playground tiles

Thickness 40mm or more rubber playground tiles can be directly laid(without adhesive)on a relatively flat ground(the ground can be earthy ground without making a concrete foundation).Because the thickness of 40mm or more rubber playground tiles are relatively large,adhesive is not needed.(Note:The earthy foundation must be compacted.)
Thickness 40mm or less rubber playground tiles must be glued with universal adhesive.The specific method is as follows:
1.Clean the concrete surface layer with a mop.
2.Use nails to draw a construction line at the edge of the site to ensure that the rubber playground tiles being laid have the same edge line.
3.Brush four coats of universal adhesive on the ground.Brush four corners of the rubber playground tiles with universal adhesive.Let it dry for 2-3 minutes before sticking it to the ground with a light hammer.
4.Cut the rubber playground tiles with a straight knife according to the shape of the site.The amount of rubber playground tiles used are calculated based on the number of blocks used.Because there is a waste rate.
5.Note:The ground where the rubber mats are laid must be dry and flat.