....Where it can look good on the day popping of fillers and grout expecially on wooden floors is a very disheartening sight and part of the reasoning behind dirty stone.
I have to support wetdec on the advice given about laying and grouting stone his words of wisdom should be a solid guiding path to laying and grouting stone products.
Stone doesn't allow for quick instalation it just can't be slapped down like ceramic and must be handled and laid with care. As a example fixing 10m2 of unfilled trav can take up to 3 days to complete. Don't be in a hurry have plenty of spare buckets with clean water only seal after grouting an wipe down canstanly with a damp not wet sponge. Only grout up about 1m2 at a time and finish each section before moving on to the next one. Be paitent don't be hurried work clean but steady. Just follow a few of these points and also those made by wetdec and you will be rewarded with a beautiful long lasting stone project.
I do not do much of travertine laying but on all the work I have done so far I never had any problem with popping filler and grout. When you say filler do you mean the resin?
I know someone had a problem with that (filler popping out) but he (and I) assumed that it was to do with the manufacturing process.
I belive that he re-filled the stone with some resin but I cannot say what he used.
How can this filler popping happen?
As a coincidence I am doing a honed and filled tranertine floor on timber at the moment :yes: .