The blast resistance of blocks affects the amount of damage that shields take and the strength of explosions when a shield is disabled.
A starship's hull should be constructed of armor blocks with high blast resistance such as stairs, slabs, walls, and terracotta, which have a modified blast resistance of 6.0. Core structural blocks such as concrete, which has a lower blast resistance of 1.8, cause shields to take more damage and explosions of unshielded blocks to be more powerful. Glass blocks and panes have a blast resistance of 5.0 and are often the only exterior weakpoints on a well-built starship.
link to github data https://github.com/HorizonsEndMC/Ion/blob/ce28c648ca69e705fda04b5b8a683a4a6ef2c4cc/server/src/main/kotlin/net/horizonsend/ion/server/features/misc/GameplayTweaks.kt
add github data to nice chart
mc wiki for other resistances https://minecraft.wiki/w/Explosion#Blast_resistance