Okay, here’s my today’s sharing about using Fiberfrax refractory fiber caulk:
So, the other day, I had to fix this little furnace thingy I use for some DIY projects. There were some cracks and gaps in the refractory lining, and I needed something to seal them up, so the heat wouldn’t just leak out. After doing some digging around, I decided to go with this stuff called Fiberfrax refractory fiber caulk. It’s basically a putty made of ceramic fibers mixed with some sticky refractory binder.
First off, I made sure the surfaces I was going to apply the caulk to were clean. I brushed off any loose debris and dust, just to make sure the caulk would stick properly. Then, I put on some plastic gloves because I figured it would get messy.
This Fiberfrax stuff has a consistency like putty, so it was pretty easy to work with. I just scooped some out and started pressing it into the cracks and gaps with my fingers. I also used a little trowel to help spread it around and make sure it was filling in everything nicely. It stuck really well to the refractory material in the furnace, which was great.
- Worked like a charm for sealing up cracks.
- Was pretty easy to apply, even for a novice like me.
- Stuck well to the existing refractory and metal parts.
After I was done applying it, I just let it sit for a while to cure. I mean, I didn’t rush to use the furnace right away. I wanted to make sure it was completely set. And guess what? It worked like a charm! No more heat leaking out of those cracks. The furnace is way more efficient now.
All in all, I’m pretty happy with how this Fiberfrax caulk turned out. If you need to patch up some refractory stuff, I’d say give it a shot. Just remember to clean the surfaces and wear some gloves. You should be good to go!
