WoodCentral Forums

Est. 1998 — 27 years of woodworking knowledge

Silicone Question???

Posts

Silicone Question???

#1

Silicone Question???

Barry Irby

I am working on an white oak table that has a number of crack and splits I am going to fill with epoxy. Now that I am YouTube educated on epoxy I have decided to build a dam around the areas with caulk. Several of the YouTubers I watched used Dap Latex. I had an old tube of it and it says "with Silicone" on the label. So, out of an abundance of caution I put down a layer to packing tape and put the silicone on top of that, Mostly, I missed in a couple of spots and had a drip or two.

This is painters caulk. May use SW CAB lacquer or Rubio MonoCoat. The top will be thoroughly sanded first. What are the chances the silicone will interfere with the finish?

Re: Silicone Question???

#2

Re: Silicone Question???

Bill Tindall, E.Tn.

What are the chances the silicone will interfere with the finish?

100%

Re: Silicone Question???

#3

Any suggestions?

J Barrett Irby Jr

Aside from not watching YouTube?

Re: Silicone Question???

#4

Re: Silicone Question???

Don Stephan

Are the cracks and splits due to seasonal movement that is likely to continue in the future? If so, will filling them after an extended period of low humidity (forced air heating) be a permanent fix or will extended periods of higher humidity that cause the wood to expand fight with the fill?

Re: Silicone Question???

#6

Stability question?

Barry Irby

This oak had been air drying for at least ten years. I brought it into my semi conditioned shop and trimmed it down and glued two pieces together after flattening them with a router sled. Then flattened the combined two again. This has take a month or more and they seem to be stable.

But, to answer your question, I don't know. We will see.

Re: Silicone Question???

#7

Thanks, Interesting....

Barry Irby

I have watched over a dozen YouTube video's by at least half a dozen different people. Almost all of them build forms and seal the corners with pure silicone caulk. Most of them spray the forms with silicone mold release spray. Many of them build dams around the pour with painters caulk. I can only think of one that mentioned covering the wood before using the spray. None had any reservations about either of the caulks types.

Also strikes me as odd that "Painters" caulk would have silicone in it if it damages finishes. I know it does on clear finishes but it still seems odd.

Speaking of YouTube...it's hard to find good videos from smart, reliable, experienced people. Many of them are posting their first River table or epoxy pour. Very few have years of experience. I have difficulty believing river tables will hold up over the years.

Re: Silicone Question???

#8

Re: Thanks, Interesting....

Larry Clinton At Frankfort, (Central) Indiana

Bill is absolutely correct! I have personally seen the results of an automobile painted that had been "waxed" with a compound containing Silicone, the car owner did not inform the paint shop! I guess you could call the finish art as it was covered with "fish eyes". Normal cleaning will NOT remove silicone. I personally ban silicone from my workshop. The only place I use the spray is on the rubber seals on my vehicles. It doesn't allow the frost to stick the door closed any more than it stops paint from adhering!

Re: Silicone Question???

#9

Re: Thanks, Interesting....

Walt

Silicone spray works a treat on snow shovels.

Re: Silicone Question???

#10

Re: Stability question?

Pete in Holland MI

Pledge furniture polish has been banned from my house because it contains silicone to make your furniture feel slippery. Makes finish re-touches impossible.

👍 This page answered my questions

Your vote helps other woodworkers quickly find the answers and techniques that actually work in the shop.