Need calmag? Help please :)

[Ashleigh08]

My son sprayed ceramic car coating on some of my leaves... wiped and rinsed off and I thought the burn was from that, but wondering if I've actually got a calcium deficiency. Thanks for any help

 

[Mañ'O'Green]

I would think there is damage to the leaves from the chemicals. Also what is the temperature and Relative humidity in that space? Too high or too low can cause nutrient uptake problems. Paint is not a good foliar feed