SKU: 89521808304

Goldflex Rosin

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Description

Goldflex RosinGoldflex Gold colors. A slightly harder rosin mixed with gold dust; for general use. About Rosin History: From the 10th to 12th century, people used resin obtained from fir and pine trees for painting and to make their wooden boats waterproof. It was also around that time that people from the eastern parts of the Mediterranean region started to look for new and better ways how to play their stringed instruments. Initially, they would use sticks made

Goldflex
Gold colors. A slightly harder rosin mixed with gold dust; for general use.

About Rosin
History:
From the 10th to 12th century, people used resin obtained from fir and pine trees for painting and to make their wooden boats waterproof. It was also around that time that people from the eastern parts of the Mediterranean region started to look for new and better ways how to play their stringed instruments. Initially, they would use sticks made from dried sheep gut which had a rather rough surface to strike the strings. Later on, people discovered the benefits of using horsehair for bowing their strings. With a layer of rosin applied onto the bow hair this proved to be the perfect invention. Only bow hair coated with rosin would grab the strings enough for them to be caused to vibrate.

Extraction:
Natural resin was and still is obtained from pine trees during fall and turpentine oil is the product which is gained through its distillation. Pieces of natural resin are heated up in a boiler in order to evaporate water from it while at the same time impure components within the now liquefied resin slowly sink towards the bottom of the boiler. As a last step, the pure liquid resin is skimmed off and then cooled down.

Origin and Characteristics:
You can recognize the origin of the resin by its color. French and North American pure resin has a light yellow color while German pure resin is rather brown. Pure natural resin is transparent, can be easily pulverized and dissolves in alcohol and essential oils.
In a successive stage, the pure resin is heated up again while oil and other materials are added. This liquid will then be poured into a mold to form the cake of rosin that
musicians are using for their bow hair. Each manufacturer has his very own specific procedure to make rosin which he protects as a strict secret. As a consequence, all rosins today differ in quality and impact the bowing technique and the sound color of an instrument immensely. For the musician it is thus important to carefully choose a rosin which helps him to have the most ideal grip of the bow while playing the strings.

Which Rosin should I use?
High quality rosin allows for perfect bowing without scratchy sounds, especially if only a thin layer of rosin is applied. The general rule is:
• Violinists and violists use a harder, dryer rosin
• Cellists use a medium strong rosin
• Bassists a softer rosin

Another important aspect for choosing the right rosin is the core material of the string that are being used:
• Steel strings are easier played if you use a hard, dry rosin
• For synthetic, gut and gut wound strings use a softer rosin
• Moreover, experienced players prefer softer rosin when playing in a studio and harder rosin in a concert hall. Hard rosin works best in tropical climates while soft rosin is good for cold climates.
• We develop our own specific rosin and design it according the technical requirements of our different string lines. That is also the reason why we name our rosin after the brand names of our violin and viola string lines.

Packaging
Each cake of rosin is glued onto a soft cloth which then is attached to a hard plastic grip. This prevents the fingers of the musician to get exposed to rosin dust and also makes it easier to apply the rosin.

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SKU: 89521808304

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john c wynsen
Carnegie, US
★★★★★ 5
Info not to be found elsewhere ...
Format: Paperback
I am a cardiologist in my 50s. I have long been interested in hemodynamics and have an extensive home file system and library of Cardiovascular related books and journal articles. I thought I understood hemodynamics and tracings very well. However this book is a treasure trove of info that simply cannot be found in other publications. It has been a very worthwhile purchase. Highly recommended. This is best suited for cardiology fellows and beyond in my opinion. This info is simply not to be found elsewhere. It is as if a grey haired attending is pointing out minutiae to you that you had not realized was buried in the tracings. Well written and easy to digest. It is best to have a good understanding of hemodynamics and waveforms before reading this though. The correlation with ECHO and diastolic issues is also very good. (This book should be required reading for all cardiology fellows - invasive or noninvasive)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 7, 2016
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Items not received
Pawtucket, US
★★★★★ 5
Hemodynamics
Format: Paperback
Very good book for students and residents of cardiology who want to learn from basic to adavence hemodynamics! Im strongly recommending it to everyone ! Its like a bible for hemodynamics!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 11, 2024
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C Hwang
Carnegie, US
★★★★★ 5
Excellent
Format: Paperback
As a second-year cardiology fellow, I used to get very confused with hemodynamics during my cath and CCU rotations. This book is a gem, it is clear and logically written, has great explanations of waves and great illustrations. The constrictive pericarditis, valvular disease, and FFR chapters are impressive with echocardiographic and physiologic correlations. I actually liked everything I read, like the nice differentiation between the pressure tracings of various chambers. Some of it requires multiple reads but it is worth it. I realized that I had missed a great deal of the basic understanding of pressure tracing configuration, wedge pressure, shunts. There are also over 50 cases in a test-answer format probably covering and reviewing most hemodynamic topics. It is like 2 books in 1.
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Reviewed in the United States on March 14, 2013
A
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Aziz A
Omaha, US
★★★★★ 3
Black and white
Format: Paperback
Bought this book. Good content. However my copy is in black and white. There are references to colored arrows. I later learned that others have a colored copy.
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Reviewed in the United States on January 30, 2026
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Alexandra Joseph
Houston, US
★★★★★ 5
AMAZING BOOK!!!!!
Format: Paperback
AMAZING BOOK!!!!!! WOW!!! everything you need to know about hemodynamics. This book explains the concepts with graphing, images. It also summarizes the key points. I wish I have read that book sooner. I could not believe it that in 1 book I found all the information I needed for the cardiology boards and my daily practice. Thank you o ugh Dr. Hanna for taking the time to write this book. Much Thanks!!!!
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Reviewed in the United States on September 5, 2020

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