Wood Varnish , Oil Based vs Water Based Varnish

Wood Varnish

Wood Varnish is referred to a hard, thin, transparent film on a wood 
product. they are usually glossy but may be  produced as satin or semi-gloss.  


The following factors are typically considered to select a wood varnish:

• Appearance
• Durability
• Protection
• Drying Time
• Expense
• Reparability  
• Ease of application

There are two categories of varnish available, solvent-based and water-based.

For the solvent based varnishes, hardening takes place as soon as the 

solvent has fully evaporated. Note that in some situations varnish may 

experience a curing process. Curing is simply described as a chemical 

reaction between components of the varnish as well as between oil 

and oxygen in the air.

Oil based varnishes are thought to give more luxurious looking  and 

produce a deeper finish than water based varnishes. This is because 
the oil in the oil-based varnish is actually absorbed into the wood 
surface, while the water based just dries on surface of the wood.

For water based varnishes, hardening takes place as soon as the 
water has fully evaporated. They were designed for commercial/high 
traffic areas where durability is important and compared to solvent based.  

You may apply a solvent based varnish as a final coat on top of the 
two or more water based varnish coat. Just make sure about the 
compatibility of to varnishes.

Let’s have quick compare for both

Water Based

 -it is apply easier
- It dries very quickly.
- It has very little odor.
- In low water and no chemicals areas is acceptable.
- The wood will look more natural with a water-based finish.
- It is more expensive than oil based by sometimes 3- 5 times
- Grain raising may happen that requires you to sand the first coat with a 
very fine sandpaper.
- The reparebility is poor.

Oil based 

- It is thought to give the wood more depth and more color.
- It takes much more longer for each coat to be dried. You have to 
wait as long as 24 h for drying and several days for fully curing.
- Its applying need more experience.
- It has smell. 
- The repeatability is excellent. 
- The scratch resistance is fair.
- It is less expensive that water based.
- You need to apply fewer coats.



I found a nice picture from a link below (click on the picture for the link). 
It shows the water based varnish on the left hand side vs oil based varnish 
on the right hand side.

Useful likes I found:

http://www.hardwoodinfo.com/articles/view/pro/23/254

Unable to publish a post in blogger, getting error code bX-5dvf4a

You may get the error code bX-5dvf4a  while you are uploading a video from your hard drive or any video from YouTube to your blogger post.
This happens when you are using Google chrome as your browser. It might be a temporary issue.

Use Internet explorer to log into your blogger. Your post is published successfully with no pain.
Hope it works for you!

How to tune your musical instrument to a particular frequency?

The easiest way is to adjust the frequency produced by any instrument to the right pitch.

For example, in Guitar, the E string vibrates at the frequency of 329.63Hz. If you pluck the first string, the software shows 329.6Hz and show the E4 note.
Looking at the physics of a vibrating string, the lowest frequency produced by any instrument is called the fundamental frequency.  The fundamental frequency is also known as the first harmonic of the instrument.  329.63 Hz is the fundamental frequency of the E string.

PitchPerfect Guitar Tuner is a free software by NCH  Software designed to tune different verity of string instrument like Guitar, violin, Cello ,etc.. it allows you to identify the frequency of the sound  played and automatically detects the note.


Here is the link for the software

You can find the fundamental frequency of open strings in the following tables.

Guitar 

Standard

String tuning	1	2	3	4	5	6
Note	E4	B3	G3	D3	A2	E2
Frequency (Hz)	329.63	246.95	196.00	146.83	110.00	82.41

Open G tunning

String	1	2	3	4	5	6
Note	D4	B3	G3	D3	G2	D2
Frequency (Hz)	293.66	246.95	196.00	146.83	98.00	73.42

Windows Live Movie Maker Black screen on playback - Find solution

The following steps may help you to fix the problem

1- In the search windows, type "Device Manager"

2- In the opened window click on "Display adapters" . You will see the Driver name.

Right click on driver name and select "Update Driver Software". Windows 

automatically gets the updates for the Display Driver.

3- You may do the update manually. In the search window type "DxDiag". in the opened window select

Display. On the left hand side you will see the graphic card details.
The manufacture is probably  Intel, AMD/ATI or NVIDIA.

Go to their website and get the right driver for your machine which is usually  the most updated.