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Thread: Strong glue for Paulownia
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8th February 2013, 08:15 AM #1SENIOR MEMBER
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Strong glue for Paulownia
A friend of mine is refurbishing and old (1960’s) bus to beconverted to a motor home. The originalinside roof of the bus was covered with panels of masionite which was screwedto ribs, spaced every 600 mm, that are welded to the roof. He has removed the sheets and proposes to reline the ceiling with stripsof Paulownia 46 x 6 mm running lengthwise.The original roof will be painted black and there will be a gap of 4 mm betweeneach strip. He proposes to cover the original ribs withPaulownia strips that will be 35 x 4.5 mm (to allow for the curves in the roof). These strips will be attached with numerousself tapping screws. The longitudinal stripswill be glued to these ribs and secured with a small staple to hold them inplace while the glue dries. There willbe insulation between the roof of the bus and the lining.
My feeling is that it will look great. If this method of lining was used in astationery building I would have no concerns about the strips staying in placeover time. Paulownia glues well and the surfacesto be glued will be fine sawn surfaces to help the glue penetrate the timber. However I’m concerned as to what effect thevibrations of travel on dirt and corrugated roads will have in the longterm. In order that the glue holds itmust be extremely strong. Can memberssuggest a glue that would suit thisparticular project.
Whitewood
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10th February 2013, 08:22 AM #2SENIOR MEMBER
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Strong timber glue
I thought I would have had a few suggestions by now. I suppose the mention of an unfamiliar species,Paulownia, has made members baulk at a response. As far as I’m concerned Paulownia is justanother timber. It just happens to look good,is very lightweight and it glues well. So can any member suggest a generaltimber glue that would be up to this particular application?
Whitewood
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10th February 2013, 09:03 PM #3Skwair2rownd
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Titebond 3. It's a bit runny and apparently presentd some difficulties with use - it makes a mess if not used with care.
Or you could try a polyurethane glue like gorilla glue. It has the advantage of being a bit flexible.
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13th February 2013, 01:45 PM #4SENIOR MEMBER
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Strong glues
Thanks for the reply Artme. I had hoped for a few more suggestions but that has not happened. I checked the gorilla web site and their wood glue seems to meet the requirements for this project.
Whitewood
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13th February 2013, 04:04 PM #5
Why not try epoxy Whitewood. If you search the boatbuilding forum for strip building canoes you will find references to members using Paulownia and epoxy for lightweight strip built canoes which sounds a lot like what is to be done on this build. Epoxy also gives longer drying time and this can be a help in some cases, depending on the build.
Also check this link
Untitled Document
Cheers, Ian"The common law of business balance prohibits paying a little and getting a lot.. it can't be done.
If you deal with the lowest bidder it is well to add something for the risk you run.
And if you do that, you will have enough to pay for something better"
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13th February 2013, 10:46 PM #6
Being a bus I would avoid epoxy glue, epoxy is usually rigid when it sets.
I would look at the Sikaflex range, it is what it is aimed at.
Sika Australia | Sika Australia Pty. Ltd.Cheers
DJ
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15th February 2013, 07:25 AM #7SENIOR MEMBER
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Stong glue
Thanks for the responses especially DJ's Timber. I have passed the information on to my mate. I had a look at the Sikaflex web site and they appear to have a 'glue' for all applications. I have left it to my mate to choose the one best suited to his project.
Whitewood
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