Natural latex	Synthetic latex (Ecostick 9004, 9006)
Strong ammonia odor	Light ammonia odor
It forms lumps and blocks the needle during stitching	Does not form lumps and does not interfere with stitching
Bonding strength is reduced with time	High initial bonding strength, resistant to aging
Low resistance to humidity and hydrolysis	High resistance to humidity and hydrolysis
Its price is lower but a lot more quantity is needed	Its price is higher but smaller quantity is needed with the use of a spraying system
Unstable product; in order to obtain a solid content of 60% minerals which have a negative effect are used	Stable product that maintains its characteristics even after the expiration date
It can be used for leather but not for synthetic materials	Ideal for both leather and synthetic materials and also for all the absorbing and thin layer materials
Applied always on both sides	Can be applied also on one side only
Can cause allergic reactions	Does not cause allergic reactions