Is dental impression silicone putty reef safe?

[pooootiqe]

Hi Randy,

Was gonna get a new tube of Tunze coral gum instant but come across a few posts here saying it’s a dental impression putty (same with Maxspect putty). Do you think I could use a two-part silicone dental putty from Amazon to glue corals?

Thx!

 

[Randy Holmes-Farley Verified Community Expert]

I'd be careful as some of these contain tin as an activator. Speedex , for example, does.