Archive for category Self Defense

Iron Bamboo Sticks for Filipino Martial Arts

Silat, Kali, Arnis, Eskrima are variations of Stick Fighting Martial Art Form that evolved in Philippines.

Arnis & Eskrima are Spanish words. The term Escrima/ Eskrima, is derived from a Spanish term “esgrima”, meaning ‘fencing’. This art form was more from the central part of the Philippines. Arnis, is derived from a Spanish term  ‘Arnes de mano’ meaning ‘armour of the hands’. It was later shortened to ‘Arnis’. This art form comes from the northern parts of the Philippines. They're Filipino stick fighting mixed with European techniques of sword fighting

Kali is a Silat style, martial art form- and comes from the southern part of the Philippines. The word Kali is Indonesian, derived from the Bahasia dialect, meaning river. As per certain literature- the stick in Kali Stick Fighting, epitomizes the river, continuously flowing, unstoppable, with the ability to consume whatever lays in its path.  Throw a boulder in a river and the water will go under, over, through or around it but it will continue to flow.

For the most part, these are all similar, if not same, martial arts. The masters of these arts influenced each other and thus there are many similarities. The differences usually depend on the instructor.

2017-08-20 20.24.31

We have listed this on ebay-

4421023001 Set of 4 pieces, Iron, Bamboo, Martial, Arts, Escrima, Anis, Kali, Practice, Bo, Staff, Walking, Stick

IRON BAMBOO, is a rare variety of ALMOST FULLY SOLID BAMBOO SPECIES, harder than hardwood. Certain mechanical parameters are comparable to steel. Bamboo has a longer longitudinal fibre- thus does not break easily. It may momentarily yield/bend under extreme pressure, but comes back to its original form- much like an elastic. This helps to reduce the intensity of the impact shock.

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Price: C $27.00

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Price: US $22.00

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Iron Bamboo Processing and Preservation

As a person undertaking agro-forestry of bamboo, we process Iron Bamboo for Handicrafts, Martial Art or Medieval Replica Weapons for Self Defense, which involves specialized methods and techniques of processing and preservation, to increase its durability.

Preservation techniques-

The empirical wisdom or popular knowledge, of indigenous people, peasants, farmers and artisans, has been developed through centuries in all the continents and has resulted in well-known methods and techniques to effectively preserve bamboo. Traditional methods are generally cheaper to implement and can be done without any special equipment.

For proper Preservation of iron bamboo, it must be harvested/cut early mornings, before sunrise, in winters - on a waning moon.** (This is a controversial topic, scientists argue over the truth behind this “peasant knowledge”. Nevertheless, detailed studies show remarkable differences with untreated bamboo, when harvested at specific hours and moon phases. The starch content is lowest between waning gibbous and last quarter between the 6th and 8th day after full moon due to the higher gravitation of the moon. On the basis of photosynthesis, in the course of the morning, bamboo starts transporting starch from the roots into the leaves.

Soaking- After harvest, bamboo is stored in running water for 3-4 weeks to leach out starch.

Chemical Treatments ( any one -to be done immediately after harvesting or after soaking)-

  • CCA (copper-chrome-arsenic composition, in the proportion 3: 1:4) is good for bamboo, but has associated health hazards. Thus, it has to be used judiciously, if at all. Bamboo products are tanalised, impregnated under pressure or boiled with chromated copper arsenate (CCA) to protect against rot. CCA is effective but toxic/carcinogenic.

  • ACA- Ammoniacal copper arsenate penetration in bamboo is effective against fungi, bacteria and insects. However, ACA is eco-toxic non-degradable.

  • CCB and CCBF  - commercially ASCU.

  • Boric acid, borax and boron are cheaper than CCA and less poisonous. This is used at a concentration of  2.5 per cent each, to be dissolved in hot water. The preservative, (disodium octaborate- which forms as a result of the reaction), is easily soluble in water. This process is only recommended for bamboo culms that would not be exposed to water or rain. Boron salts are effective against borers, termites and fungi (except soft rot fungi), and is widely recognized to be environmentally acceptable and safe for the mammals.

  • Other alternatives methods:Treatment of bamboo with limewater.

  • Drying of bamboo before use is necessary since dry bamboo is stronger and less susceptible to biological degradation than moist bamboo. In some experiments carried out it was found that Acetic acid (Vinegar), completely prevented moulds/fungus incidence during the drying process. (Tang et al., 2009).

  • Following the drying, the bamboo is TRADITIONALLY smoked by storing it above a fireplace, to blacken the culm. This, however, may not be necessary if chemical methods are used.

  • Fire Retardant Preservative- This treatment is intended to protect materials against fire as well as decay and insect attack. A mixture of boric acid / copper sulphate / zinc chloride / sodium dichromate in a ratio of 3:1:5:6 is recommended at 25% for indoor and outdoor use

  • For Termites- 1% Dieldrin may be added to the preservative. However, Dieldrin is dangerous, and use is illegal in several countries.

Further information
• Non poisonous Timber Protection Practical Action Technical Brief
• Designing and Building with Bamboo by Jules J. A. Janssen

https://www.guaduabamboo.com/preservation/chemical-bamboo-preservation

https://www.guaduabamboo.com/preservation/durability-of-bamboo

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