Disc Pad composition query

[youngoldbloke]

I'm new to discs and my Orbea Gain has Tiagra hydraulics. I've finally worked out that the replacement pads are the same as those for 105 - Shimano Road BR-RS505/805. I also understand that 'resin' pads are specced ('resin only' inscribed on the rotors). Discobrakes for example doesn't list resin.
Are the 'semi metallic' pads listed the same as 'resin'?

 

[Drago]

No.

This is a bit overly simplistic, but should help...

https://www.bicycling.com/bikes-gear/a20023166/the-beginners-guide-to-disc-brakes/

 

[fossyant]

All a bit different, but be aware of switching types, you'll need to give the discs a clean, then bed in the new pad. I'm running Uber Bike's pads in both MTB's. Standard pads in the Wife's and Race Matrix in mine as they perform very well !