1. Do you recommend any products for installation, grouting, sealing, maintenance, etc. of the penny sheets?
We cannot recommend any products for any part of your penny project simply because the main ingredient in our sheets is random pennies of all ages with their own specific particularities.
We only provide the penny sheets to save you the pain of gluing one penny at a time to a floor, wall, etc for a very long time.
By placing an order, you understand, agree with, and accept this and all other info on this page.
All tile manufacturers can definitely tell you what products are recommended to install, clean, etc. any tile made by them. That's because the tile is made by them.
In our case, the 'tile' is real pennies which are not a 'tile' made by us. Therefore we cannot make any recommendations regarding any part of your project.
Feel free to consult very experienced, licensed contractors (tile installers) in your local area and also Google whatever was done by others.
We did write an article with lots of images that may provide some useful general information about installation and grouting of pennies (link to Part 1).
We also mention in our Terms & Conditions that our only 'contribution' to someone's penny project is providing the handmade penny sheets to save them the back breaking effort, knee pain and time consuming process of gluing penny by penny to a floor, wall, etc.
You can find examples of people (online) who glued penny by penny for a very, very long time. They also had to decide what products to use for every part of their project. We only offer the premade penny tile sheets to improve a painful part of the project but every other decision still belongs to the homeowner and/or contractor.
One important thing that comes from someone who tried it and shared their experience online - they say... do not use water-based sealers on pennies because water can/may turn copper green.
Pennies do have some copper content and exposure of copper to water/moisture (for how long?) can turn the copper/pennies more or less green (an extreme example is the Statue of Liberty).
We're sorry we can't be of more help, given that the main part of our real penny tile sheets is the good old penny, which is not a 'tile' made by us.