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Norminn Norminn is offline
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Default Which exterior caulk before painting

On 9/8/2011 3:23 PM, kansascats wrote:
I am going to have the entire exterior of the house painted. I want
to use a quality caulk.

I had a handyman repair a section or water damaged siding and he just
used DAP alex painters and suggested the paint is the key. Well..
one of the areas he repaired is where there was no flashing, the caulk


No flashing? Explain.

failed, and water got up under the siding and garage door top trim.
Siding, sheathing, outside header, and sandwich board destroyed.


Must have been a while to destroy siding. May not have been the caulk
that failed, but the caulker. If the wood was damp, painted too soon,
or the caulk applied too thickly, it would not cure properly

I want the the painter and myself to use a quality caulk most
appropriate for siding butt joints, siding to trim joints, siding to
soffit, around fascia, etc.

Water tooling and clean-up would be a plus.

One painted said he uses siliconized acrylic (he had a tube of SW
950A).

I've heard good things about DAP ALEX ultra 230 and GE Groov


I don't think the brand that important, although many would argue. I
pick the caulk for the type of application and have used DAP and GE many
times. If there are wide gaps to caulk, then backer rod is important to
support the caulk.