It is currently 20 Aug 2018, 19:21

Resinous hardwood query

This forum is for any general questions, queries or plain old chinwaggery on Woody stuff in general.

Resinous hardwood query

Postby 9fingers » 23 Apr 2018, 14:19

I went delving in the garage yesterday for some timber for a job. Some softwood was my aim. The stuff in there has been stored for 30 years or so and has got quite grubby.
The board I found big enough was quite grubby and had beads of dry resin on the end grain so I though it is a bit of dirty pine.
Stated machining up the sizes I wanted and it turns out to be a mid red/brown straight grained wood that I think of as a mahogany substitute type stuff but it is very resinous. The sawn and planed faces are sticky to the touch and I expect I'm going to have to clean it off for bith gluing and the eventual white painted finish.

So my question is is it common for these mahogany like timbers to have much resin?

Googling has not been productive as there are many hits about gluing these wood with epoxy resin.

TIA

Bob
Image
Information on induction motors here
https://drive.google.com/file/d/0B_GZrX ... sp=sharing
Email:motors@minchin.org.uk
User avatar
9fingers
Old Oak
 
Posts: 4429
Joined: 21 Jul 2014, 20:22
Location: Romsey Hampshire between Southampton and the New Forest
Name: Bob

Re: Resinous hardwood query

Postby Rod » 23 Apr 2018, 15:22

My father used lots of old mahogany, generally from old furniture and I’ve never seen any resinous.
Does the resin smell- pitch pine??

Rod
User avatar
Rod
Old Oak
 
Posts: 3606
Joined: 21 Jul 2014, 21:34
Location: Winchester, Hampshire
Name:

Re: Resinous hardwood query

Postby Malc2098 » 23 Apr 2018, 15:27

Parana Pine?

I used to sell it in the 60s. Varied wildly from yellow/orange to red brown straight grained.
Malcolm
User avatar
Malc2098
Old Oak
 
Posts: 2426
Joined: 03 Jul 2016, 11:10
Location: Tiverton
Name: Malcolm

Re: Resinous hardwood query

Postby Rod » 23 Apr 2018, 15:42

Oops I meant Parana Pine.
I made this in the early 70’s - still in use.
The boards were quite wide.

Rod
User avatar
Rod
Old Oak
 
Posts: 3606
Joined: 21 Jul 2014, 21:34
Location: Winchester, Hampshire
Name:

Re: Resinous hardwood query

Postby 9fingers » 23 Apr 2018, 16:16

Thanks for your suggestions gents but no it is not Pirana pine I've used that before for window sills etc

Here is a photo showing face and end grain. both of which are sticky. I has stained my finger tips or more likely stuck fine dust to them. I don't have a brilliant sense of smell but the wood does not have a strong odour.
For scale the visible end pins are 18 x 14.4 mm

resinous wood.jpg
(320.62 KiB)



Cheers

Bob
Image
Information on induction motors here
https://drive.google.com/file/d/0B_GZrX ... sp=sharing
Email:motors@minchin.org.uk
User avatar
9fingers
Old Oak
 
Posts: 4429
Joined: 21 Jul 2014, 20:22
Location: Romsey Hampshire between Southampton and the New Forest
Name: Bob

Re: Resinous hardwood query

Postby Mike Jordan » 23 Apr 2018, 18:24

I seem to remember resin ducts in either Kapur so Keruing but it's a long time ago and I'm not certain which.
The photo looks the right colour at least.
Mike Jordan
Seedling
 
Posts: 11
Joined: 10 Mar 2017, 17:06
Location: Littleover Derby DE23
Name: Mike Jordan

Re: Resinous hardwood query

Postby RogerS » 23 Apr 2018, 19:51

I've worked with and looked at quite a lot of mahogany (of all varieties) and never come across any resin.
Fewer Smart things. More smart people.
User avatar
RogerS
Sequoia
 
Posts: 5270
Joined: 21 Jul 2014, 21:07
Location: Please God. Make it stop raining.
Name:

Re: Resinous hardwood query

Postby 9fingers » 23 Apr 2018, 19:52

Mike Jordan wrote:I seem to remember resin ducts in either Kapur so Keruing but it's a long time ago and I'm not certain which.
The photo looks the right colour at least.



Thanks Mike
According to a book I have here Kapur is a bit lighter in colour but it is of the same family as Keruing but I don't have a photo of that. Meranti also belongs to the same family so it could indeed be that.

I'm glueing some up overnight using PVA and have wiped the surfaces with trichloroethane (because my acetone was not handy) Hopefully it will take.

Bob
Image
Information on induction motors here
https://drive.google.com/file/d/0B_GZrX ... sp=sharing
Email:motors@minchin.org.uk
User avatar
9fingers
Old Oak
 
Posts: 4429
Joined: 21 Jul 2014, 20:22
Location: Romsey Hampshire between Southampton and the New Forest
Name: Bob

Re: Resinous hardwood query

Postby TomTrees » 23 Apr 2018, 23:02

Doesn't look much like meranti to me, from the stock of reclaimed stuff I have.
It looks quite splintery with its long pore lines.
I haven't come across my mahogany substitutes.... iroko, meranti, sapele, and one sample of sipo/utile, and one khaya sample that is resinous in any way.
I do have some offcuts of floorboards that dark though, one sample I just brought back from the folks to see what it looked like freshly cut.
I am curious if its tacky now, I shall investigate and get the rest of the offcuts by next week.

What do you think it smells like ?
I always find taking some end grain shavings gives you the best fragrance...
Sapele end grain smells like carrots and parsnips to me.



Tom
User avatar
TomTrees
Seedling
 
Posts: 10
Joined: 19 Aug 2014, 23:51
Name:

Re: Resinous hardwood query

Postby 9fingers » 24 Apr 2018, 21:00

The joints all seemed fine this morning although as it was a proper project, I did not test to destruction.

The surfaces were no longer tacky a day after cutting and sanded nicely without clogging the Abranet. The surface will be painted so I wonder whether I ought to use a blocking primer.

Bob
Image
Information on induction motors here
https://drive.google.com/file/d/0B_GZrX ... sp=sharing
Email:motors@minchin.org.uk
User avatar
9fingers
Old Oak
 
Posts: 4429
Joined: 21 Jul 2014, 20:22
Location: Romsey Hampshire between Southampton and the New Forest
Name: Bob

Re: Resinous hardwood query

Postby TomTrees » 20 Jun 2018, 01:03

:P Hello Bob
Just reading another thread elsewhere and It sounds like the wood is keruing
I hope Keith 66 doesn't mind me pasting his post, he seems a nice bloke so I will take the chance
Keith 66
" I have used quite a bit of keruing over the years, used to be used for lorry decking a lot. It has a lot of sticky resin in it which tends to weep in little balls in the sun, Not ideal if you sit on it. And splinters are common & they always seem to go septic. "

It seems this wood quite variable from the descriptions
some saying suitable for outdoors, and others saying unsuitable.
Maybe there's subspecies of it that all goes under the same name like Iroko
as Iroko's Latin name goes by Milicia regia or Milicia excelsa ...
I have noticed different shades of the iroko I have, the darker stuff sometimes has white chalky deposits in it.
as well as some stuff being three times heavier than other samples I have.
The heaviest is the darkest, but also the lightest coloured samples, with the average coloured stuff being midweight compared.

Fair play to Mike, he was on the ball
Tomas

Loco for Iroko :P
User avatar
TomTrees
Seedling
 
Posts: 10
Joined: 19 Aug 2014, 23:51
Name:


Return to General Woodworking

Who is online

Users browsing this forum: Alder and 1 guest