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Mortartube

Member Since 14 Oct 2003
Offline Last Active Aug 30 2019 01:07 AM

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#88846 Some photos of bits I made for bonfire night 2017

Posted by Mortartube on 28 February 2018 - 01:38 PM

Tree of gerbs

Double Saxon

Blankley Silver fountain - Test

Forgive the long intro and short duration of the fountain as it was only a test. I did make a longer burning version. It's a good fountain.

Rip Rap likes this

#87825 Boiled linseed oil and oiled stars

Posted by Mortartube on 21 December 2016 - 08:32 PM

I popped into Wilko today (Burgess Hill, West Sussex) and bought some boiled linseed oil which scanned at £1.25 for 500ml instead of the displayed price of £3.50. don't know if this is nationwide, but if it is, you might want to try Oiled Stars from Kentish. I have never made them, but I know someone who has, who said they are a beautiful and unique effect. So if you fancy giving it a go whilst it's cheap, here's the formula.

OILED TAILED STARS FOR ROCKETS AND SHELLS.

Number 1 2 3

Charcoal 9 6 2

Sulphur 9 5 2

Nitre 32 18 9

Meal powder 24 12 5

Sulphuret of Antimony 16 9 4

To 1 ounce add twenty-four drops of boiled linseed oil: rub them thoroughly together in a mortar; then spread out the mixture, for a few days, to dry. When dry, mix with starch, dextrine solution, or gum water, and chop into 3⁄8 or 1⁄2 inch cubical blocks.

wayne likes this

#87772 Possibly an easy and quick way to roll match pipe.

Posted by Mortartube on 29 November 2016 - 06:45 PM

I was watching this video that is totally unrelated to pyro. Go to 3.50 to see what may be a match pipe rollers dream method.

wayne likes this

#87699 Composition for this type of fountain

Posted by Mortartube on 31 October 2016 - 05:07 PM

I think it's fairly large mesh MgAl. I have made a similar effect with about 60 mesh.

wayne likes this

#85819 AP oxidised gerbs and lance Formula

Posted by Mortartube on 04 August 2015 - 12:44 PM

]I can't recall where I got this from but it may be helpful.

[attachment=745:Pyro Iron Content & Branching chart.doc

Attached Files

Pyro Iron Content & Branching chart.doc 121KB 573 downloads

Malcolm Smith likes this

#82098 How to make nitrocellulose powder?

Posted by Mortartube on 12 May 2014 - 09:20 AM

Even if he doesn't know what it is used for, he could at least give it a shot.

archaic likes this

#78295 New Training Regs

Posted by Mortartube on 11 November 2012 - 06:23 PM

Much depends upon who trains others in the industry. I recall working on a display with a BPA member company. Some of the things that the director insisted upon were part of the BPA training. There were very good safety reasons for NOT following their practice in some cases. In other words, just because someone has been in the industry for a while or is the member of an organistaon. It doesn't always make them the best or safest choice to train others.