PCB Photoresist Developer Solution

Concentrated PCB developer is a mixture totally free from sodium hydroxide. 25g pack makes up into 1 ltr of solution with water. Completely free from Sodium Hydroxide. A board may be left immersed up to 50 times longer than the normal 20/30 seconds developing time without risk of undercutting or thinning the photoresist. It will develop all positive working photoresists as well as aqueous dry film laminates, and has a life of several months in a processing tank.