Thorn Punctures Through Tyre Protector

I had installed an extra layer of tyre protector but a thorn beats it as shown by Youtubers.
Luckily I used a tyre sealant AEROPAK from DIY. it slowed down the air loss but when I pulled out the thorn, the tyre became flat immediately.

This could be the second time a thorn punctures my tyre. The first one I only detected when I took out the tube for inspection.

The tube had been left for a few days for AEROPAK to dry but it never dried completely. My attempts to seal the puncture with the chinese seal with adhesive failed.

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