"crete" type products...safe?

[H2OLUVSME]

I was wondering if the exerts over in this forum could enlighten me as to if either of these two products are safe. I'm getting ready to set up a tank, and have been kicking around the idea of attaching some rocks to each other. I found a couple of products that are likely to be available to me, and was wondering if they would have any long term effects on my reef. One of them I found in a thread on two other forums, but am still unsure about its long term effects. The other is something I found while researching availability of the first product.

Here are links to the MSDS sheets for each product.

Thorite 400
http://www.bondedmaterials.net/pdf_m...cturalMSDS.pdf

HD-25
http://www.daytonsuperior.com/chemical/msds/HD-25.pdf

Any help/insight is greatly appreciated.

[H2OLUVSME]

Didnt realize a buddy from my reef club allready posted these Sorry for the double post, but for any one who runs across this one. This is the last reply in the other thread.

Originally posted by bertoni
The Thorite should be fine. I think the HD-25 should work as well.

[BRISK495]

I was looking for the Thorite Rapid Verical and was told that the Emaco R400 replaced it. I even called BASF (spoke to a technical expert) and they confirmed it was the same material, but in a different bag. Does anyone know anything about this??