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Vacuum Stabilizing Chamber

turnaround360

Caracktycus Pots
Fellow
Joined
Mar 6, 2013
Posts
2,427
Location
Essex
First Name
Frank
Had a wee shot at it ,used ronseal wet rot hardener yew blank 2.jpg
and when doneyew blank.jpg the 4 are not done ..... I dont know
if this is going to work.:thinks:
 

Jim

Grand Master
Joined
Oct 19, 2011
Posts
15,617
Well you are going to have to try them out Frankie, and let us know if it did ... :thumbs:
 

Jim

Grand Master
Joined
Oct 19, 2011
Posts
15,617
Never mind Frankie, we can cross it of our list of possibilities .. :ciggrin:
 

mervyn cadman

Full Member
Joined
Jun 19, 2013
Posts
86
Location
Colchester - Essex
Hi guys I heard somewhere that Rustin’s Plastic Coating will stabilize pen blank and you can buy this in the UK I know because I used it for my bar top.
although i have not used it on pen blanks but it might be worth a try.

This is the text on the box

A very hard scratch resistant, heat resistant, alcohol and water proof clear finish. It does not yellow and will build up to a high gloss. Very high build due to it's low solvent content. Extremely durable and long lasting - some items in our kitchen still look good after 20 years use. The only finish good enough for wooden wine goblets. Excellent for kitchen projects, bar tops etc. Based on urea formaldehyde resin. Mix one part hardener to four parts resin. Small amounts can be mixed at a time and will keep for a 2 days in a sealed jar (keep cold). It can be thinned down to give a protective but unobtrusive coating to pyrography pictures, marquetry etc. Can be coloured by mixing in Chestnut spirit stain.
Toy safe
Supplied boxed with resin, hardener, brush cleaner/thinners and burnishing cream.
Coverage approximately 4 sq metres one coat.

available at amazon
Amazon.co.uk: rustins plastic coating

Merv
 

Jim

Grand Master
Joined
Oct 19, 2011
Posts
15,617
Thanks Merv, i will keep this in mind when i get around to testing the vacuum out ... :thumbs:
 

penturn

Apprentice Member
Joined
Mar 23, 2013
Posts
15
Although I am new to pen turning I have spent several weeks researching stabilising pen blanks and more importantly what liquid/resins/wood hardeners we can use in the UK to stabilise the wood. The later is the three million pound question!!!

I have been down the Cactus Juice route to find its very expensive to import. Apparently we have no UK suppliers.

For international shipping for cactus juice http://www.turntex.com/images/TurnTex/international and canada shipping.pdf

The MAIN advantages of Cactus juice is that its HEAT CURED the wood it's cured immediately stopping and further air seeping back into the wood and resin leaking over time from the wood.

Another conventional method such as wood hardener which is cured over time and during this period the liquid seeps out and air is replaced. How much this make an issue I don't know.

Another alternative is another product raved about in America is a wood hardener called MINWAX this is not heat cured. But apparently a great alternative to Cactus Juice. yet again this is not available in the UK. And not as good as Cactus Juice.

So where has my research left me.

Well I am about to try the Ronseal and cuprunal wood harden apparently this does work from what I have read. Heat the wood first (warm) then put the wood in the vacuum chamber/hardener once the bubbling has stopped from the vacuum the wood is wrapped in tin foil reducing any sealant seeping out and air getting in. Then put in a warm oven or place for several hours and then cured over time for several days

Another source of research is a polyurethane sealer primer, a single pack urethane the has very low viscosity which would be required to penetrate Wood again not heat cured but the warmer the atmosphere the better and quicker drying/hardening time.

I will post pictures of my setup which is relatively cheap and easy to sourced components Regarding the vacuum pump there are several options I have read about..

Purchase a vacuum pump £150-300 very expensive.
Use a fridge pump as suggested in earlier posts.
I have used a tyre pressure pump that was in the garage. Dismantled the pump and switched the + terminal and - negative terminal round (Now its a vacuum ) not a pump as the motor turns the opposite way creating a vacuum.

A more cheaper and easier method is to heat water in a pan, in the pan is your pickle jar with resin inside and pen blanks (lid on) As the heat of the water heat the resin is become thinner and the pours open within the woodI pregnating deeper. Also this makes a vacuum in the pickle jar. *** Note this is dangerous as you playing with possible flammable liquids and HOT WATER.**** please don't use this method mess you are in a safe environment /no kids etc,

I will update more later.... Bed time :rolling:
 

Jim

Grand Master
Joined
Oct 19, 2011
Posts
15,617
That is a great write-up Penturn, and very helpful, i didn't realise the price of delivery for the cactus juice was so high ... :rolling: Look forward to seeing your setup as i have quite a number of blanks ready for this procedure ... :ciggrin:
 

rowdyyates115

It's Showtime.....
Fellow
Joined
Jun 22, 2013
Posts
2,156
Location
Portsmouth, UK
Although I am new to pen turning I have spent several weeks researching stabilising pen blanks and more importantly what liquid/resins/wood hardeners we can use in the UK to stabilise the wood. The later is the three million pound question!!!

I have been down the Cactus Juice route to find its very expensive to import. Apparently we have no UK suppliers.

For international shipping for cactus juice http://www.turntex.com/images/TurnTex/international and canada shipping.pdf

The MAIN advantages of Cactus juice is that its HEAT CURED the wood it's cured immediately stopping and further air seeping back into the wood and resin leaking over time from the wood.

Another conventional method such as wood hardener which is cured over time and during this period the liquid seeps out and air is replaced. How much this make an issue I don't know.

Another alternative is another product raved about in America is a wood hardener called MINWAX this is not heat cured. But apparently a great alternative to Cactus Juice. yet again this is not available in the UK. And not as good as Cactus Juice.

So where has my research left me.

Well I am about to try the Ronseal and cuprunal wood harden apparently this does work from what I have read. Heat the wood first (warm) then put the wood in the vacuum chamber/hardener once the bubbling has stopped from the vacuum the wood is wrapped in tin foil reducing any sealant seeping out and air getting in. Then put in a warm oven or place for several hours and then cured over time for several days

Another source of research is a polyurethane sealer primer, a single pack urethane the has very low viscosity which would be required to penetrate Wood again not heat cured but the warmer the atmosphere the better and quicker drying/hardening time.

I will post pictures of my setup which is relatively cheap and easy to sourced components Regarding the vacuum pump there are several options I have read about..

Purchase a vacuum pump £150-300 very expensive.
Use a fridge pump as suggested in earlier posts.
I have used a tyre pressure pump that was in the garage. Dismantled the pump and switched the + terminal and - negative terminal round (Now its a vacuum ) not a pump as the motor turns the opposite way creating a vacuum.

A more cheaper and easier method is to heat water in a pan, in the pan is your pickle jar with resin inside and pen blanks (lid on) As the heat of the water heat the resin is become thinner and the pours open within the woodI pregnating deeper. Also this makes a vacuum in the pickle jar. *** Note this is dangerous as you playing with possible flammable liquids and HOT WATER.**** please don't use this method mess you are in a safe environment /no kids etc,

I will update more later.... Bed time :rolling:

Jim Iv got a uk supplier

Frankie, spill it please ... :bwink: I was only looking the other day again on the Cactus site thinking should I ... :whistling:


Come on Frankie spill them there beans.....:love_it:
 
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