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#1
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Wood filler recommendation for exterior use
Need to fill a split in an exterior board - what brand(s) of wood filler perform well in
this application after priming and painting? Thanks. Doug |
#2
Posted to rec.woodworking
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Wood filler recommendation for exterior use
On Monday, February 13, 2017 at 5:31:39 PM UTC-8, Doug wrote:
Need to fill a split in an exterior board - what brand(s) of wood filler perform well in this application after priming and painting? If it's under zero stress, maybe you can get away with putty (I like Dap glazing compound). Better, though, to replace the board. You don't have any control of the interior moisture, it's gonna move after you apply any patch. |
#3
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Wood filler recommendation for exterior use
On Mon, 13 Feb 2017 19:31:42 -0600, Doug wrote:
Need to fill a split in an exterior board - what brand(s) of wood filler perform well in this application after priming and painting? I've used a variety of stuff from rotdoctor.com, with good results. |
#4
Posted to rec.woodworking
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Wood filler recommendation for exterior use
On Monday, February 13, 2017 at 8:31:39 PM UTC-5, Doug wrote:
Need to fill a split in an exterior board - what brand(s) of wood filler perform well in this application after priming and painting? Thanks. Doug DuraGlas Typically available anywhere Bondo is sold. I used it to repair a rotted window sill. It's going on ten years which includes 10 rust belt winters. Still holding strong. http://uschem.com/index.cfm?page=productDetail&id=52 http://www.uschem.com/products/docs/TDS_Duraglas1.pdf |
#5
Posted to rec.woodworking
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Wood filler recommendation for exterior use
Thank you for the DuraGlas recommendation. Did you use Fiberglass backing when repairing
the window sill? Was there any shrinkage / reduction in volume after the material was fully cured? What did you topcoat with - primer and paint or the materials recommended in the data sheet? Thanks again! DerbyDad03 wrote: On Monday, February 13, 2017 at 8:31:39 PM UTC-5, Doug wrote: Need to fill a split in an exterior board - what brand(s) of wood filler perform well in this application after priming and painting? Thanks. Doug DuraGlas Typically available anywhere Bondo is sold. I used it to repair a rotted window sill. It's going on ten years which includes 10 rust belt winters. Still holding strong. http://uschem.com/index.cfm?page=productDetail&id=52 http://www.uschem.com/products/docs/TDS_Duraglas1.pdf |
#6
Posted to rec.woodworking
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Wood filler recommendation for exterior use
Thanks to all for the recommendations. Replacing the board is certainly the best long
term solution. The condition is the result of a defective board being installed by some less than competant remodelers and not being identified by myself before it was painted. Doug Doug wrote: Need to fill a split in an exterior board - what brand(s) of wood filler perform well in this application after priming and painting? Thanks. Doug |
#7
Posted to rec.woodworking
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Wood filler recommendation for exterior use
On Tuesday, February 14, 2017 at 1:30:29 AM UTC-5, Doug wrote:
Thank you for the DuraGlas recommendation. Did you use Fiberglass backing when repairing the window sill? Was there any shrinkage / reduction in volume after the material was fully cured? What did you topcoat with - primer and paint or the materials recommended in the data sheet? Thanks again! DerbyDad03 wrote: On Monday, February 13, 2017 at 8:31:39 PM UTC-5, Doug wrote: Need to fill a split in an exterior board - what brand(s) of wood filler perform well in this application after priming and painting? Thanks. Doug DuraGlas Typically available anywhere Bondo is sold. I used it to repair a rotted window sill. It's going on ten years which includes 10 rust belt winters. Still holding strong. http://uschem.com/index.cfm?page=productDetail&id=52 http://www.uschem.com/products/docs/TDS_Duraglas1.pdf I did not use fiberglass. I slightly overfilled the voids with the DuraGlas, just like you would with Bondo or dry wall mud and then sanded it smooth. Primed with exterior primer, painted with exterior paint. Because of the fiberglass in the product it's a lot harder to sand than wood, Bondo, drywall mud, etc. You also might want to gouge the split or undercut it to give the DuraGlas something to hold onto. Give it some "teeth" to lock it in. |
#8
Posted to rec.woodworking
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Wood filler recommendation for exterior use
"Doug" wrote in message ... Need to fill a split in an exterior board - what brand(s) of wood filler perform well in this application after priming and painting? Thanks. Doug Splits can be iffy. I wouldn't use any rigid filler, I'd use a caulk, then prime and paint. |
#9
Posted to rec.woodworking
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Wood filler recommendation for exterior use
Need to fill a split in an exterior board - what brand(s) of wood filler perform well in this application after priming and painting? Thanks. Doug Splits can be iffy. I wouldn't use any rigid filler, I'd use a caulk, then prime and paint. Caulking - that was my first thought also... but don't know the size of the crack. Normal caulk will only work up-to a certain size opening. Perhaps a specialty caulking ? John T. |
#10
Posted to rec.woodworking
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Wood filler recommendation for exterior use
On 02/14/2017 6:04 AM, DerbyDad03 wrote:
.... I did not use fiberglass. I slightly overfilled the voids with the DuraGlas, just like you would with Bondo or dry wall mud and then sanded it smooth. Primed with exterior primer, painted with exterior paint. .... What was the form of the voids? I used both Bondo and a fiberglass-enhanced version to repair areas on the barn siding when did the refurb on it. Most did _NOT_ hold up to the temperature cycling and wind-induced movement of the wood substrate more than 5 yr or so(*). I can imagine if were larger, deeper voids it _might_ be more successful, but for surface damage I can't recommend bondo as being very permanent based on the results I've had...not sure _any_ inflexible material will stand up. (*) Noticed the other day, ring-shank siding nails driven into 100-yo first cut SYP wall studs have worked out where heads may be as much as 1/8" or more proud of surface. The buffeting of KS wind just causes so much movement even they don't hold permanently... -- |
#11
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Wood filler recommendation for exterior use
On Mon, 13 Feb 2017 19:31:42 -0600, Doug wrote:
Need to fill a split in an exterior board - what brand(s) of wood filler perform well in this application after priming and painting? Thanks. Durham's Rock Hard Water Putty |
#12
Posted to rec.woodworking
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Wood filler recommendation for exterior use
On 2/13/2017 8:31 PM, Doug wrote:
Need to fill a split in an exterior board - what brand(s) of wood filler perform well in this application after priming and painting? Thanks. Doug Use dap exterior grade caulk -- Jeff --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus |
#13
Posted to rec.woodworking
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Wood filler recommendation for exterior use
On Tuesday, February 14, 2017 at 10:52:28 AM UTC-5, dpb wrote:
On 02/14/2017 6:04 AM, DerbyDad03 wrote: ... I did not use fiberglass. I slightly overfilled the voids with the DuraGlas, just like you would with Bondo or dry wall mud and then sanded it smooth. Primed with exterior primer, painted with exterior paint. ... What was the form of the voids? I used both Bondo and a fiberglass-enhanced version to repair areas on the barn siding when did the refurb on it. Most did _NOT_ hold up to the temperature cycling and wind-induced movement of the wood substrate more than 5 yr or so(*). I can imagine if were larger, deeper voids it _might_ be more successful, but for surface damage I can't recommend bondo as being very permanent based on the results I've had...not sure _any_ inflexible material will stand up. I'll wager that barn siding subjected to KS winds moves a lot more than a first floor window sill on a 2 story colonial in the rust belt. If my window sill moved enough to dislodge DuraGlas I'd move too. ;-) |
#14
Posted to rec.woodworking
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Wood filler recommendation for exterior use
Thanks again to all for the benefit of their experience.
Max. width of the void is ~1/4 - 3/8 in., and perhaps 10-12 in. OAL, tapering at each end. Use of filler will be temporary until this board and others are replaced. Doug wrote: Need to fill a split in an exterior board - what brand(s) of wood filler perform well in this application after priming and painting? Thanks. Doug Splits can be iffy. I wouldn't use any rigid filler, I'd use a caulk, then prime and paint. Caulking - that was my first thought also... but don't know the size of the crack. Normal caulk will only work up-to a certain size opening. Perhaps a specialty caulking ? John T. |
#15
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Wood filler recommendation for exterior use
dadiOH,
Thank you for the reply. I want to take the opportunioty to Thank You agian for the recommendations, guidance, and confidence you provided regarding refinishing my mahagony front door with Z Spar Flagship varnish. That was the best, most valuable input I have ever recevied for a home improvement project. The door still looks great almost 4 years later although a touch here and there may be beneficial. Doug "dadiOH" wrote: "Doug" wrote in message .. . Need to fill a split in an exterior board - what brand(s) of wood filler perform well in this application after priming and painting? Thanks. Doug Splits can be iffy. I wouldn't use any rigid filler, I'd use a caulk, then prime and paint. |
#16
Posted to rec.woodworking
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Wood filler recommendation for exterior use
On Tuesday, February 14, 2017 at 8:02:49 PM UTC-6, Doug wrote:
dadiOH, Thank you for the reply. I want to take the opportunioty to Thank You agian for the recommendations, guidance, and confidence you provided regarding refinishing my mahagony front door with Z Spar Flagship varnish. That was the best, most valuable input I have ever recevied for a home improvement project. The door still looks great almost 4 years later although a touch here and there may be beneficial. Doug "dadiOH" wrote: "Doug" wrote in message .. . Need to fill a split in an exterior board - what brand(s) of wood filler perform well in this application after priming and painting? Thanks. Doug Splits can be iffy. I wouldn't use any rigid filler, I'd use a caulk, then prime and paint. Doug - You will rarely, if ever, see dadiOH give bad advice. I do all manner of repair and finishing for a living and have to say his advice is usually spot on. As was his thoughts on splits; wood moves on its own based on temps. Hard fillers aren't the ticket as they have no elasticity, and if the wood moves the patch material separates from the perimeter of the patch from repeated movement. Epoxies, resins and their cousins are fine for interior use as you are usually repairing a piece that is acclimated to inside humidity from AC/furnace controls, so humidity doesn't fluctuate wildly. Nor do the temps. Most of the time they aren't your optimal choice for exterior use. Again, as he said, your best bet for splits, cracks wind shake, is a good caulk. To do all my repair sealing, I use the ALEX 40 year with silicone that is available at the home stores. It hold paint very well, has great adhesion, shrinks only a tiny bit, tools well and has something like 10% elasticity when cured. Robert |
#17
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Wood filler recommendation for exterior use
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#18
Posted to rec.woodworking
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Wood filler recommendation for exterior use
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#20
Posted to rec.woodworking
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Wood filler recommendation for exterior use
"Doug" wrote in message ... dadiOH, Thank you for the reply. I want to take the opportunioty to Thank You agian for the recommendations, guidance, and confidence you provided regarding refinishing my mahagony front door with Z Spar Flagship varnish. That was the best, most valuable input I have ever recevied for a home improvement project. The door still looks great almost 4 years later although a touch here and there may be beneficial. Doug I am pleased that I was able to help you. |
#21
Posted to rec.woodworking
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Wood filler recommendation for exterior use
wrote in message ... Doug - You will rarely, if ever, see dadiOH give bad advice. I do all manner of repair and finishing for a living and have to say his advice is usually spot on. Thanks for the kudos. I try to keep my mouth shut about things about which I do not know. |
#22
Posted to rec.woodworking
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Wood filler recommendation for exterior use
Thank you Robert! Considering the time that has passed and the number of folks you
correspond with, you may have forgotten the several exchanges we had in this forum regarding best practices and materials for finishing a red oak model display stand I built for my dad. While it is an indoor only item - it looks as good as the day I finished it, which indicates I properly followed your very specific instructions. I find experimenting and learning from one's mistakes valuable - although in that instance was under the gun schedule wise and could not afford to mess it up and start over - back to the belt sander as I recall you commented. Doug " wrote: On Tuesday, February 14, 2017 at 8:02:49 PM UTC-6, Doug wrote: dadiOH, Thank you for the reply. I want to take the opportunioty to Thank You agian for the recommendations, guidance, and confidence you provided regarding refinishing my mahagony front door with Z Spar Flagship varnish. That was the best, most valuable input I have ever recevied for a home improvement project. The door still looks great almost 4 years later although a touch here and there may be beneficial. Doug "dadiOH" wrote: "Doug" wrote in message .. . Need to fill a split in an exterior board - what brand(s) of wood filler perform well in this application after priming and painting? Thanks. Doug Splits can be iffy. I wouldn't use any rigid filler, I'd use a caulk, then prime and paint. Doug - You will rarely, if ever, see dadiOH give bad advice. I do all manner of repair and finishing for a living and have to say his advice is usually spot on. As was his thoughts on splits; wood moves on its own based on temps. Hard fillers aren't the ticket as they have no elasticity, and if the wood moves the patch material separates from the perimeter of the patch from repeated movement. Epoxies, resins and their cousins are fine for interior use as you are usually repairing a piece that is acclimated to inside humidity from AC/furnace controls, so humidity doesn't fluctuate wildly. Nor do the temps. Most of the time they aren't your optimal choice for exterior use. Again, as he said, your best bet for splits, cracks wind shake, is a good caulk. To do all my repair sealing, I use the ALEX 40 year with silicone that is available at the home stores. It hold paint very well, has great adhesion, shrinks only a tiny bit, tools well and has something like 10% elasticity when cured. Robert |
#23
Posted to rec.woodworking
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Wood filler recommendation for exterior use
On Friday, February 17, 2017 at 7:03:43 PM UTC-6, Doug wrote:
Thank you Robert! Considering the time that has passed and the number of folks you correspond with, you may have forgotten the several exchanges we had in this forum regarding best practices and materials for finishing a red oak model display stand I built for my dad. While it is an indoor only item - it looks as good as the day I finished it, which indicates I properly followed your very specific instructions. Thanks for the kind words. I kind of remember that... but more importantly glad it worked out well. I am sure it looks great. I find experimenting and learning from one's mistakes valuable - although in that instance was under the gun schedule wise and could not afford to mess it up and start over - back to the belt sander as I recall you commented. There are times where experimenting is a complete waste of time. I too, like to find out things for myself, work up my own protocols and ideas for my work. But at this juncture in my life with many more years behind me than in front of me, I am much more happy to take instruction, then practice techniques based on practical instruction until I am satisfied. My youthful zeal for reinventing the wheel is gone. I got a big laugh at my own expense over the belt sander comment. What tact! I am glad you took it as it was meant, not in a bad way. Robert |
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