This is a good read to understand the difference between glass (quartz) and ceramic
Quartz and Ceramic Coatings | Concept Chemicals.
Based on my queries ATMT is accredited by CarPro to apply the professional grade CQ UK Professional & CQ Finest, hence, they are required to meet CarPro's standard in order to protect its reputation. Whereas, TD uses the consumer grade CQ ver 3 which is available to consumers/DIYers. However, I am not sure if TD is accredited by CarPro for professional grade products. Based on product specs and from Youtube DIY, consumer grade products does not require IR curing compared to professional grade products. I guess paint protection is getting a significant boost by making it available not only to professional detailers but to consumers/DIYers as well. Which is good, in my opinion.
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