Lighting for Wood Finishing

 New Additions, Wood Finishing Tricks  Comments Off on Lighting for Wood Finishing
Mar 272019
 

Proper use of Light will Improve your Finish

& enable you to really SEE what you are looking at.

Lighting for shop work and finish room areas, and its correct use,
is important for obtaining high quality good looking finishes.

Lighting and Color

With translucent & clear furniture finishes light travels through all the finish layers and is reflected off the wood or substrate. The ‘Observed Finish Color’ is a combination of all the color tones in the various finish stain & dye layers combined with the wood color.

wood finish diagram
Finish Diagram of Clear or Translucent Furniture Finishes
Light travels through all the finish layers.
The Finish color is a combination of all
the colors in the various finish layers
combined with the wood color.

When studying a color we notice that its hue will vary depending on illumination and its surroundings. Illumination changes the color hue of an object due to the color available in the light source. Color is the product of wavelengths that are either absorbed or reflected by the surface of an object.
see: Color Theory and color mixing for the woodworker.

The hue appears to alter according to a colors surroundings. Our retina is affected by these wavelengths and the stimuli are communicated to the cortex, that part of the brain that enables us to distinguish one shade from another.

Light bulbs are available in:
1 – Warm white or soft white (2700-3600 °K)
2 – Cool white (3800 -4800°K )
3 – Daylight or Full Spectrum designations (5000°K) or higher.
The color spectrum output of a bulb is rated in Kelvin° color temperature (has nothing to do with the heat a bulb produces). Full Spectrum Daylight bulbs for incandescent and compact or linear fluorescent are available in a range of wattages and styles.

You need the entire color spectrum in your light source to evaluate or match stain and finish colors accurately. Full Spectrum Daylight Bulbs with a high CRI (color rendering index) are a must. Better daylight bulbs will list the CRI on the package, the higher the number the better. A CRI above 85 is good for shop use. Bulbs rated above 95 are expensive and are not needed for wood finishing.

The very best light for critical color matching work is natural daylight (out of direct sun glare).

SEE what you look at !

Proper use of lighting will automatically improve your finish quality.
When you can really see what is happening the finishing process is easier.

Now you have the right light to see color – Correct use will enable critical evaluation of the surface condition prior and during the finishing process.

Fluorescent lighting (Cool White or Daylight bulbs only) is fine for ambient lighting or general work area illumination. Avoid using warm white or soft white bulbs they bathe everything in a yellowish light. The shadow-less lighting produced by fluorescent bulbs tends to hide surface defects.

Inspection Lighting:

A shadow producing light source is necessary to see that a surface is free of any unwanted defects.

Use incandescent bulbs in a reflector for inspection lighting in:
1, surface prep areas (sanding, dying staining)
2, finishing areas
3, final rub-out, waxing or polishing.

Arrange inspection lighting so that the light is aimed at the work and toward the operator so that any defect is accentuated by the shadow or reflection it produces. When you can easily see: scratches from sanding, glue smears, minor dents, brush marks, finish drips, runs, curtains or sags, and polishing or rub out marks it will be much easier to achieve the desired, defect free, finish look.

•••••
This page & all contents Copyright © 1995-2020, Ron Ashby &
Shellac.net Wood Finish Supply.
All rights reserved – (may be used in complete form with credit line above)




 

Moving Rubber Bands as Clamps

 MERIT Industries, New Additions, Wood Finishing Tricks  Comments Off on Moving Rubber Bands as Clamps
Mar 232019
 

Large Moving HD Rubber Bands as Clamps
A creative “outside the box” application of Large Rubber Bands
designed to secure moving blankets.
from Jay Rosen —  www.Facebook.com/NorthCoastFIX

I purchased these “heavy duty rubber bands”
to secure moving blankets around furniture.

I use them for all types of projects.
Especially helpful for gluing up odd shaped items.
Easier than a strap clamp.
Good compression.
Chair glue-ups, edge veneering, and similar.

For a simple item, they are super helpful.!

Jay, Thanks  for sharing.

Find the HEAVY DUTY RUBBER BANDS @: https://www.shellac.net/moving-packing.html#2373


 

Mar 092019
 

DVD de retoque y reparación de madera
Wood Touch Up & Repair DVD
– SPANISH

El sistema de entrenamiento iteractivo de
Mohawk está diseñado para entrenarlo a Ud.
a hacer retoques y arreglos sobre productos
de madera haciendo uso de las técnicas más
avanzadas que existen al respecto en esta industria.
Este video interactivo incluye instrucciones
sobre las siguientes áreas:
• El análisis del daño  • El relleno de los daños
• El reemplazo de colores 
• El reemplazo de las vetas
• La aplicación por puntos de um acabado

• El ajuste del brillo  • La eliminación de rayas
• El cuidado del acabado 
• …Y muchas más
“Este es un excelente DVD para el aprendizaje de reparaciones de acabado de madera”

Comprar el DVD


Mar 072019
 

Solving Common Wood Finishing Problems
(Recommended reading for all finishers)

Regardless of your finish of choice, water or solvent based, both modern and
traditional coatings require many of the same considerations for application success.

First:
• Select a recommended finish to meet the project requirements.
•  Read The Directions.
Most finishes work best at around 72°F and a humidity of 4o% or less.

•  Follow the manufactuers guidelines.
Finish drying and curing depend on temperature, humidity and air flow.

So far there is Not a finish material
that says it will dry faster if you are in a hurry!

Creating a Fine Finish, by brush or spray, requires attention to many factors
including environment, finish material, selection of spray or brush equipment, and more.

Read through this entire document so you can spot finish problems
before or as they arise.

This self help problem solving guide identifies the source and the fix for many issues that can prevent the achievement of a perfect finish.