Sunday, 29 January 2017

Wood Finish

Wood finishing refers to the process of refining or protecting a wooden surface, especially in the production of furniture where typically it represents between 5 and 30% of manufacturing costs.
Finishing is the final step of the manufacturing process that gives wood surfaces desirable characteristics, including enhanced appearance and increased resistance to moisture and other environmental agents. Finishing can also make wood easier to clean and influence other wood properties, In addition, finishing provides a way of giving low-value woods the appearance of ones that are expensive and difficult to obtain.


Appearance
Protection
Durability
Safety
Ease of Application
Reversibility
Rubbing Qualities
From virtually clear (super blond) to a rich orange (garnet)
Fair against water, poor solvent protection
Durable
Safe when solvent evaporates, used as food and pill coating
Clogs spray equipment. Quick solvent flash time makes brushing difficult. Ox or badger/skunk hair brush recommended. Easy to pad, however French Polish is difficult
Completely reversible using alcohol
Excellent











Thursday, 26 January 2017

Heat Resistant Varnish

Heat-resistant coatings have properties such as durability, color retention, water resistance, corrosion resistance, and excellent performance upon exposure to high temperatures. Heat-resistant coatings are increasingly becoming an integral part of various commercial and industrial applications. They are used in various end-user industries such as construction, oil & gas, bedding & furniture, transportation & aerospace, and packaging.

Shellac resins confer excellent properties on protective coatings and exhaust systems, especially those exposed continuously to extreme temperatures and rapid fluctuations in temperature. Properties of heat-resistant coating systems are determined primarily by constituent binders, fillers, and pigments. Shellac resin coatings readily withstand in higher temperatures without getting destroyed or suffering adhesion failure. These are resistant to abrasion, chemicals, and light.



Wednesday, 25 January 2017

shellac

Shellac is 100% natural. Shellac is 100% non toxic and FDA approved. Shellac is a kind of non-toxic natural gum resin dissolves in a wide variety of alkaline or rapidly drying alcoholic solvents but is resistant to a number of other solvents particularly hydrocarbons. The low thermal conductivity and a small coefficient of expansion cause shellac to lead to a powerful bonding material.
Shellac is perfect for antique restoration, furniture refinishing, casework, architectural woodwork, toys and general woodworking.
Shellac is widely used in the cosmetic, drug and food industry. It is the only finish that should be used on children’s furniture due to its non toxicity!
Shellac is processed and sold as dry flakes and dissolved in ethanol to make liquid shellac, which is used as a brush-on colorant, food glaze and wood finish. Shellac functions as a tough natural primer, sanding sealant, tannin-blocker, odour-blocker, stain, and high-gloss varnish.
CAS: 9000-59-3
EINECS: 232-549-9
FEMA: N/A
HS.CODE: 130110
Molecular Formula: N/A
Molecular Weight: N/A

Packaging

  • Gunny Bag, 25kg net each, 480 bags (12 MT) per 20’FCL
  • Woven Bag, 25kg net each, 480 bags (12MT) per 20’FCL
  • Wood Box 25kg net each, 320 boxes (8 MT) per 20’FCL

Specifications of Machine Made Shellac Flakes TN

Acid Value65-76
Ester Value110-175
Saponification Value175-240
Wax Content5.50% max.
Moisture2% max.
Heavy Metals as Pb10 PPM max.
Insolubility in Hot Alcohol0.75%-1.00%
Rosin and OrpimentFree from Rosin and Orpiment

Specifications of Machine Made Orange Shellac Flakes

Acid Value65-76
Ester Value110-175
Saponification Value175-240
Wax Content5.50% max.
Moisture2% max.
Heavy Metals as Pb10 PPM max.
Insolubility in Hot Alcohol1.00%-1.25%
Rosin and OrpimentFree from Rosin and Orpiment

Specifications of Machine Made Lemon Shellac Flakes

Acid Value65-76
Ester Value110-175
Saponification Value175-240
Wax Content5.50% max.
Moisture2% max.
Heavy Metals as Pb10 PPM max.
Insolubility in Hot Alcohol0.75%-1.00%
Rosin and OrpimentFree from Rosin and Orpiment



























Saturday, 21 January 2017

Shellac Varnish

French polishing is a wood finishing technique that results in a very high gloss surface, with a deep color and chatoyancy. French polishing consists of applying many thin coats of shellac dissolved in alcohol using a rubbing pad lubricated with oil. The rubbing pad is made of absorbent cotton or wool cloth wadding inside a square piece of fabric (usually soft cotton cloth) and is commonly referred to as a fad, also called a rubber, tampon, or muñeca, Spanish for "rag doll".
French polish is a process, not a material. The main material is shellac, although there are several other shellac-based finishes, not all of which class as French polishing.

The finish is considered by many to be a beautiful way to finish highly figured wood,It is also simpler to repair than a damaged varnish finish, as patch repairs to French polish may be easily blended into an existing finish.