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Autumnknight 09-25-2006 12:13 AM

Caulking questions
 
I am in the process of painting exterior window frames on the southern exposure of my house. I did some repairs to weather checks in my dining room window (I posted here earlier about that)....and while doing that, I ended up pulling some dark colored caulking out from a little space on the lower part of the window. The space is maybe 1/4 inch in height, and goes the entire width of the window.

I did not pull all of this old caulk out. I would like to know if I should pull the rest out, and then fill with new caulk, or is it okay to fill in the empty gaps? The next question is what is the best caulk to use?

Thanks in advance!

Steve

SgtBaldy 09-25-2006 01:42 PM

If you want it to last i would get out all the old caulk you can. Having a fresh new bead on the windows will look better also.

Exteriors we use elastomeric 50yr caulk.

slickshift 09-25-2006 04:09 PM

Quote:

Originally Posted by Autumnknight (Post 19126)
I would like to know if I should pull the rest out, and then fill with new caulk

The next question is what is the best caulk to use?

Yup
Your local paint shop will have the best paintable exterior caulk
Ask them for a recommendation
I haven't noticed a real big difference between Ben Moore's premium and Sherwin Williams premium, as long as your getting the premium

kellstar painting 09-25-2006 07:34 PM

The absolute best caulking in my opinion is pheneseal.... it's $100 a case.. but well worth it ... I use it on all my historical restorations.

Autumnknight 09-25-2006 10:24 PM

Thanks for the advice guys! Would I need a special type of caulk for this spot in the window? I saw some GE Silicone 2 that said it was especially for windows and doors.....I have read that paint does not stick to silicone though....so I thought I would wait to see what you guys had to say.

It is off the paint store before the weekend....:thumbup:

Paintguy26 09-26-2006 07:26 AM

Digging out the old is always better. Preference of caulk is personal choice, just like paint favorites. For the most part, paint doesnt stick to silicone, yes...but just look at the caulk and if it says "paintable" your fine....I personally use dap or whatever sherwin sells that is above 45 year.

eric s 09-30-2006 08:08 AM

I have used GE XST it has a handy little reference on the back in a text box showing it's sticking ability to surfaces with a 1-7 rating with 7 being the highest.

I was looking for specific surfaces with my applications in mind and found that It was right for them both.

What impressed me was that the label claims that it sticks with a 7 rating to all of the surfaces it claims to stick to.

If this is the brand you are trying I believe you will find that it sticks to wood and windows.

canadaclub 10-25-2006 12:13 PM

I once heard that if you absolutely need to use silicone caulking and still want to paint, paint the caulking with a thin layer of contact cement...the paint will adhere then. Anyone actually try this technique?

kellstar painting 10-25-2006 04:21 PM

you really don't want us to have to charge extra for that do you?

slickshift 10-26-2006 08:50 PM

Quote:

Originally Posted by canadaclub (Post 21841)
I once heard that if you absolutely need to use silicone caulking and still want to paint, paint the caulking with a thin layer of contact cement...the paint will adhere then. Anyone actually try this technique?

Quote:

Originally Posted by kellstar painting (Post 21858)
you really don't want us to have to charge extra for that do you?

Ha ha....
Yeah basically

I'm not sure what the absolute need for silicone that had to be painted would be
But if you need to paint silicone (not siliconized paintable) that's already there, I have successfully used a coat or two of white-pigmented shellac-based primer/sealer (B-I-N), then painted over that

torpainter 10-27-2006 06:23 PM

I've also run another light bead of paintable caulking over the silicone caulking


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