Epoxy for Bathroom Bolt Replacement - Revision history

Advance: /* Hindsight 2026 */

2026-02-27T10:29:37Z

Hindsight 2026

Advance: /* Hindsight */

2026-02-27T10:29:11Z

Hindsight

Advance: /* Hindsight */

2026-02-27T10:25:38Z

Hindsight

Advance: /* Hindsight */

2026-02-27T10:24:42Z

Hindsight

Advance: /* Hindsight */

2026-02-27T10:23:00Z

Hindsight

Advance: /* Best Approach: Steel bar, Concrete screws, and Welding */

2026-02-27T10:21:56Z

Best Approach: Steel bar, Concrete screws, and Welding

Advance: /* Best Approach: Steel bar, Concrete screws, and Welding */

2026-02-27T10:20:16Z

Best Approach: Steel bar, Concrete screws, and Welding

Advance at 05:22, 26 March 2024

2024-03-26T05:22:52Z

Advance: /* Best Approach: Steel bar, Concrete screws, and Welding */

2024-01-22T16:28:39Z

Best Approach: Steel bar, Concrete screws, and Welding

Advance at 16:27, 22 January 2024

2024-01-22T16:27:47Z

@@ Line 146: / Line 146: @@
 ===Hindsight 2026===
-I suspect, that the epoxy resin we use is not suitable for holding bolts. It is a type of flooring epoxy. However, anchoring cement or polyester resin in concrete should work better. Though my attempt with a stainless nut and resin here did not work, I did have success with stainless bolts and a concrete wall. Please see the other [[Application Notes]].
+I suspect, that the epoxy resin we use is not suitable for holding bolts. It is a type of flooring epoxy. However, anchoring cement or polyester resin in concrete should work better. Though my attempt with a stainless nut and resin here did not work, I did have success with stainless bolts and a concrete wall. Please see [[Gelcoat_Anchoring]].
 [[Category:Application Notes]]

@@ Line 145: / Line 145: @@
 I suppose epoxy or resin could be used to hold bolts, but I found that putting a nut below the toilet, and then using threaded rod to go through the toilet bolt hole to the nut below was more modular. For a bottom exit toilet, it may not matter, but for a rear entry toilet, the placement of 4 bolts (instead of just 2) is more difficult, so this is what works for me.
-===Hindsight===
+===Hindsight 2026===
 I suspect, that the epoxy resin we use is not suitable for holding bolts. It is a type of flooring epoxy. However, anchoring cement or polyester resin in concrete should work better. Though my attempt with a stainless nut and resin here did not work, I did have success with stainless bolts and a concrete wall. Please see the other [[Application Notes]].
 [[Category:Application Notes]]

← Older revision		Revision as of 10:25, 27 February 2026
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	I suspect, that the epoxy resin we use is not suitable for holding bolts. It is a type of flooring epoxy. However, anchoring cement or polyester resin in concrete should work better. Though my attempt with a stainless nut and resin here did not work, I did have success with stainless bolts and a concrete wall. Please see the other [[Application Notes]].		I suspect, that the epoxy resin we use is not suitable for holding bolts. It is a type of flooring epoxy. However, anchoring cement or polyester resin in concrete should work better. Though my attempt with a stainless nut and resin here did not work, I did have success with stainless bolts and a concrete wall. Please see the other [[Application Notes]].

−	[[Category:Application ~~notes~~]]	+	[[Category:Application Notes]]

@@ Line 146: / Line 146: @@
 ===Hindsight===
-I suspect, that the epoxy resin we use is not suitable for holding bolts. It is a type of flooring epoxy. However, anchoring cement or polyester resin in concrete should work better. Please see the other [[Application Notes]].
+I suspect, that the epoxy resin we use is not suitable for holding bolts. It is a type of flooring epoxy. However, anchoring cement or polyester resin in concrete should work better. Though my attempt with a stainless nut and resin here did not work, I did have success with stainless bolts and a concrete wall. Please see the other [[Application Notes]].
 [[Category:Application notes]]

@@ Line 146: / Line 146: @@
 ===Hindsight===
-I suspect, that the epoxy resin we use is not suitable for holding bolts. It is a type of flooring epoxy. However, anchoring cement or polyester resin should work better. Please see the other [[Application Notes]].
+I suspect, that the epoxy resin we use is not suitable for holding bolts. It is a type of flooring epoxy. However, anchoring cement or polyester resin in concrete should work better. Please see the other [[Application Notes]].
 [[Category:Application notes]]

← Older revision		Revision as of 10:21, 27 February 2026
Line 144:		Line 144:

	I suppose epoxy or resin could be used to hold bolts, but I found that putting a nut below the toilet, and then using threaded rod to go through the toilet bolt hole to the nut below was more modular. For a bottom exit toilet, it may not matter, but for a rear entry toilet, the placement of 4 bolts (instead of just 2) is more difficult, so this is what works for me.		I suppose epoxy or resin could be used to hold bolts, but I found that putting a nut below the toilet, and then using threaded rod to go through the toilet bolt hole to the nut below was more modular. For a bottom exit toilet, it may not matter, but for a rear entry toilet, the placement of 4 bolts (instead of just 2) is more difficult, so this is what works for me.
		+
		+	===Hindsight===
		+	I suspect, that the epoxy resin we use is not suitable for holding bolts. It is a type of flooring epoxy. However, anchoring cement or polyester resin should work better. Please see the other [[Application Notes]].

	[[Category:Application notes]]		[[Category:Application notes]]

← Older revision		Revision as of 10:20, 27 February 2026
Line 144:		Line 144:

	I suppose epoxy or resin could be used to hold bolts, but I found that putting a nut below the toilet, and then using threaded rod to go through the toilet bolt hole to the nut below was more modular. For a bottom exit toilet, it may not matter, but for a rear entry toilet, the placement of 4 bolts (instead of just 2) is more difficult, so this is what works for me.		I suppose epoxy or resin could be used to hold bolts, but I found that putting a nut below the toilet, and then using threaded rod to go through the toilet bolt hole to the nut below was more modular. For a bottom exit toilet, it may not matter, but for a rear entry toilet, the placement of 4 bolts (instead of just 2) is more difficult, so this is what works for me.
		+
		+	[[Category:Application notes]]

← Older revision		Revision as of 05:22, 26 March 2024
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−	This is a story about trying to replace floor bolts on a rear exit toilet. The first attempt was to use epoxy to put new bolts into a preexisting tiled bathroom floor. The epoxy approach ended up not turning out properly, and instead Polyester Resin based Hull and Deck Putty attached to a piece of mild steel and a stainless nut was used instead as an adhesive. Then this also failed, and instead of using any kind of resin here (which was too difficult to adhere to the stainless), simple welding and concrete screws were used. While all of these approaches could potentially work if done properly, the easiest thing was to weld and use concrete screws.	+	This is a story about trying to replace floor bolts on a rear exit toilet. The first attempt was to use epoxy to put new bolts into a preexisting tiled bathroom floor. The epoxy approach ended up not turning out properly (due to user error), and instead Polyester Resin based Hull and Deck Putty attached to a piece of mild steel and a stainless nut was used instead as an adhesive. Then this also failed, and instead of using any kind of resin here (which was too difficult to adhere to the stainless), simple welding and concrete screws were used. While all of these approaches could potentially work if done properly, the easiest thing was to weld and use concrete screws.

	The epoxy approach was not taken seriously enough, the bolts were not put deep enough into the floor, and the measurements were incorrect, the polyester approach was flawed due to differences in bonding between mild steel (which adhered well to the putty) and improperly prepared stainless (which did not stick to the putty). The final approach turned out to be the right answer here. Note that we actually sell a resin designed to work with concrete anchors, but I didn't use that here. That will have to wait for another day. Concrete screws are good enough for an indoor residential toilet.		The epoxy approach was not taken seriously enough, the bolts were not put deep enough into the floor, and the measurements were incorrect, the polyester approach was flawed due to differences in bonding between mild steel (which adhered well to the putty) and improperly prepared stainless (which did not stick to the putty). The final approach turned out to be the right answer here. Note that we actually sell a resin designed to work with concrete anchors, but I didn't use that here. That will have to wait for another day. Concrete screws are good enough for an indoor residential toilet.

← Older revision		Revision as of 16:28, 22 January 2024
Line 143:		Line 143:
	search says that toilet floor bolts are not standardized. A flux core welder can be rented from hardware stores if necessary.		search says that toilet floor bolts are not standardized. A flux core welder can be rented from hardware stores if necessary.

−	I suppose epoxy or resin could be used to hold bolts, but I found that putting a nut below the toilet, and then using threaded rod to go through the toilet bolt hole to the nut below was more modular. For a bottom exit toilet, it may not matter, but for a rear entry toilet, the placement of 4 bolts is more difficult, so this is what works for me.	+	I suppose epoxy or resin could be used to hold bolts, but I found that putting a nut below the toilet, and then using threaded rod to go through the toilet bolt hole to the nut below was more modular. For a bottom exit toilet, it may not matter, but for a rear entry toilet, the placement of 4 bolts (instead of just 2) is more difficult, so this is what works for me.

← Older revision		Revision as of 16:27, 22 January 2024
Line 1:		Line 1:
−	This is a story about trying to replace floor bolts on a rear exit toilet. The first attempt was to use epoxy to put new bolts into a preexisting tiled bathroom floor. The epoxy approach ended up not turning out properly, and instead Polyester Resin based Hull and Deck Putty was used instead as an adhesive. Then this also failed, and instead of using any kind of resin here, simple welding and concrete screws were used. While all of these approaches could potentially work if done properly, the easiest thing was to weld and use concrete screws.	+	This is a story about trying to replace floor bolts on a rear exit toilet. The first attempt was to use epoxy to put new bolts into a preexisting tiled bathroom floor. The epoxy approach ended up not turning out properly, and instead Polyester Resin based Hull and Deck Putty attached to a piece of mild steel and a stainless nut was used instead as an adhesive. Then this also failed, and instead of using any kind of resin here (which was too difficult to adhere to the stainless), simple welding and concrete screws were used. While all of these approaches could potentially work if done properly, the easiest thing was to weld and use concrete screws.

	The epoxy approach was not taken seriously enough, the bolts were not put deep enough into the floor, and the measurements were incorrect, the polyester approach was flawed due to differences in bonding between mild steel (which adhered well to the putty) and improperly prepared stainless (which did not stick to the putty). The final approach turned out to be the right answer here. Note that we actually sell a resin designed to work with concrete anchors, but I didn't use that here. That will have to wait for another day. Concrete screws are good enough for an indoor residential toilet.		The epoxy approach was not taken seriously enough, the bolts were not put deep enough into the floor, and the measurements were incorrect, the polyester approach was flawed due to differences in bonding between mild steel (which adhered well to the putty) and improperly prepared stainless (which did not stick to the putty). The final approach turned out to be the right answer here. Note that we actually sell a resin designed to work with concrete anchors, but I didn't use that here. That will have to wait for another day. Concrete screws are good enough for an indoor residential toilet.