On 3rd April 2014, the IGU manual silicone pump was stopped by the QC inspectors due to mixing problem. The snap time test supposed to 25 to 40mins as directed by the material supplier. But the recorded result on 3rd April 2014 was 10mins. The curing was very fast, so the manual pump was stopped for maintenance. NGI maintenance team could not be able fix it even after cleaning the spiral, changing the gun and replacing the Non-return valve. Then Lisec has been called for maintenance. Till that time only robotic sealing was running.