- Is Kerdi-Fix worth it over a standard silicone sealant?
- For Kerdi waterproofing it is the specified product: it bonds membrane and band to fixed elements and stays elastomeric and waterproof. A generic silicone may not bond reliably to Kerdi membrane or Kerdi-Board. For plain joints outside a waterproofing system, a cheaper sealant does the same job.
- Can Kerdi-Fix be used outdoors and on metal?
- Yes. It is UV- and weather-resistant and rated for outdoor use and for metal, so it suits exterior penetrations and metal-to-membrane bonds.
- How much does one cartridge cover?
- Each cartridge holds 290 ml (9.81 fl oz). That is enough for pipe and valve protrusions and small bonds; full membrane seams over a large shower will need several cartridges.
- Does Kerdi-Fix work with Kerdi-Board and Kerdi-Band?
- Yes. It is made to bond Kerdi-Band and Kerdi membrane to fixed building elements and to waterproof pipe and valve protrusions in Kerdi and Kerdi-Board installations.
- Is it solvent-based or does it smell?
- It is solvent-free and odor-neutral, with a silane-modified polymer base, so it is less harsh in a closed bathroom than solvent sealants.
- When is the price lowest?
- The best new price was $29.74 at The Home Depot as of November 4, 2026, with 4 stores listing it new. Compare those stores before buying, since cartridge prices move with promotions.
- Where is the Schluter-Systems Kerdi-Fix White Joint sealer cheapest?
- At The Home Depot, for $29.74, as of our latest check.
- What do buyers say about the Schluter-Systems Kerdi-Fix White Joint sealer?
- Rated 5 out of 5 from 3 ratings.
- Where can I buy the Schluter-Systems Kerdi-Fix White Joint sealer?
- 6 stores we checked sell it, including The Home Depot, Amazon, Lowe's, tileoutlets.com, eBay.
