bmwpower said:
When are the epoxy companies going to get off their **** and offer a joint filler to go with their epoxy? Makes sense to me.
My guess is that they won't because they see one of two potential problems.
1. Average homeowner fills joints with a flexible filler prior to coating the floor. After a couple of weeks or months of traffic, the filler moves and the floor coating cracks. Homeowners complain about "failed" epoxy floor systems.
2. Average homeowner fills joints with a cementitious product and with time, the slab starts to move. Filler or slab gives way causing cracking or spalling. Homeowners complain about epoxy floor system destroying perfectly good slabs.
The R & D departments have a lot of work to do to make that sort of thing DIY idiot proof so they aren't constantly paying out on product liability claims.
On the other hand, professional applicators have a few materials that they use to fill joints. I can't think what the material is but the treatment is usually $1 or more per linear foot installed when contracted with a coated floor.
If you're looking for a good polyurethane sealant, take a look at
Sonolastic NP-2. It's a pro-grade three component sealant meant for sealing of joints, can be submerged (like for dams) and is tintable to almost 500 colors. Availability for non-pros could be an issue though unless you can find it at a local contractor supply house. We spec this stuff all the time for exterior control joints between concrete sidewalks / driveways and buildings and at masonry control joints.